Axiom Genotyping Assay User Manual
Axiom Genotyping Assay User Manual
Axiom Genotyping Assay User Manual
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Patents
Arrays: Products may be covered by one or more of the following patents: U.S. Patent Nos. 5,445,934; 5,744,305; 5,945,334;
6,140,044; 6,261,776; 6,291,183; 6,346,413; 6,399,365; 6,420,169; 6,551,817; 6,610,482; 6,733,977; 6,955,915 and D430,024 and
other U.S. or foreign patents. Products are manufactured and sold under license from OGT under 5,700,637 and 6,054,270.
Software products may be covered by one or more of the following patents: U.S. Patent Nos. 6,090,555; 6,611,767; 6,687,692;
6,829,376; 7,130,458; 7,451,047; and other U.S. or foreign patents.
Fluidics stations: Products may be covered by U.S. Patent Nos. 6,114,122; 6,287,850; 6,391,623; 6,422,249; and other U.S. or
foreign patents.
Scanners: Products may be covered by one or more of the following patents: U.S. Patent Nos. 6,141,096; 6,262,838; 6,294,327;
6,403,320; 6,407,858; 6,597,000; 7,406,391; and other U.S. or foreign patents.
Hybridization ovens: Products may be covered by one or more of the following patents: U.S. Patent Nos. 6,050,719; 6,386,749;
6,705,754; and other U.S. or foreign patents.
Copyright
© 2010 Affymetrix Inc. All rights reserved.
Contents
Chapter 6 Automated Target Preparation for Processing Eight Axiom Array Plates Per
Week . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Thawing Frozen Plates of Amplified DNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
Initial Target Prep Week — Biomek FXP Target Prep Express . . . . . . . . . . . . . . . . . . . . . . .186
Simultaneous Eight-Plate Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192
Chapter 7 Automated Target Preparation for Processing Two Axiom Array Plates per
Week . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Overview of the 2-plate Workflow for Automated Target Preparation . . . . . . . . . . . . . . . .203
Thawing Frozen Plates of Amplified DNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204
Target Prep and Array Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204
Chapter 8 Manual Target Preparation for Processing Three Axiom Array Plates per
Week . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Overview of the 3-plate Workflow for Manual Target Preparation . . . . . . . . . . . . . . . . . . .209
Thawing Frozen Plates of Amplified DNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212
Manual Target Prep and Array Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
iv Axiom™ Genotyping Assay User Manual
Manual target prep enables lab workers to perform the steps without the use of automation
equipment.
The hyb-ready targets are then transferred to the Affymetrix GeneTitan® Multi-Channel (MC)
Instrument for automated, hands-free processing (including hybridization, staining, washing and
imaging).
Cel files generated by the GeneTitan MC Instrument are processed using the Axiom™ Genotyping
Algorithm version 1 (Axiom GT1) available through Affymetrix Power Tools or Genotyping Console™
v4.0.
6 Axiom™ Genotyping Assay User Manual
In summary, the Axiom Genotyping Solution is a product line that provides catalog arrays that:
Are optimized for high genetic coverage of their population in question.
Utilize the latest content from dbSNP.
Provide highly automated, reproducible results suitable for GWAS.
Related Documentation
Affymetrix GeneTitan® Multi-Channel Instrument User’s Guide, P/N 08-0308
Affymetrix GeneTitan® Multi-Channel Instrument Site Preparation Guide, P/N 08-0305
Affymetrix GeneChip® Command Console™ 3.1 User Manual, P/N 702569
Genotyping Console User Guide
Axiom gDNA Sample Prep QRC P/N 792928
Axiom Automated Target Prep QRC Setup P/N 702831
GeneTitan MC Protocol for Axiom Array Plate Processing QRC P/N 702929
References
1. Manolio T.A. and Collins F.S.: The HapMap and Genome-Wide Association Studies in Diagnosis
and Therapy. Annu Rev Medicine 2009, 60:443–56
2. Klein RJ, Zeiss C, Chew EY, et al.: Complement factor H polymorphism in age-related macular
degeneration. Science 2005, 308:385–89
3. Hindorff LA, Junkins HA, Mehta JP, and Manolio TA.: A Catalog of Published Genome-Wide
Association Studies. Available at: www.genome.gov/gwastudies. Accessed 09/28/2009.
page 95)
3. Array Processing, done with
GeneTitan MC Instrument
GeneTitan Instrument Control software
AGCC Portal software
See Chapter 5, Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument
on page 149.
A list of the required equipment and supplies for running the Axiom Assay using automated target
preparation and Manual target preparation can be found in the Axiom Site Prep Guide, P/N 702858.
Copies of the Material Safety Data Sheets for the kit components are available on the Affymetrix website
at www.affymetrix.com.
8 Axiom™ Genotyping Assay User Manual
NOTE: DNA derived from Formalin-Fixed Paraffin-Embedded (FFPE) blocks should not be used
with this assay.
General Requirements
Starting DNA must be double-stranded for the purpose of accurate concentration determination.
DNA must be of high purity.
DNA should be free of DNA polymerase inhibitors. Examples of inhibitors include high concentrations
of heme (from blood) and high concentrations of chelating agents (i.e., EDTA). The gDNA extraction/
purification method should render DNA that is generally salt-free because high concentrations of
particular salts can also inhibit enzyme reactions. DNA purity is indicated by OD260/OD280 and OD260/
OD230 ratios. The OD260/OD280 ratio should be between 1.8 and 2.0 and the OD260/OD230 ratio should be
greater than 1.5. We recommend that DNA samples that do not meet these criteria be cleaned up as
described under Genomic DNA Cleanup on page 11.
DNA must not be degraded.
10 Axiom™ Genotyping Assay User Manual
The approximate average size of gDNA may be assessed on a 1% agarose gel using an appropriate size
standard control. Approximately 90% of the DNA must be greater than 10 Kb in size. Control DNA
can be run on the same gel for side-by-side comparison.
RediLoad™ 750026
omission of the loading dye is recommended in order to improve visualization. Loading ≥ 25 ng gDNA
per well can improve the image.
Add 3 µL of 0.1X of RediLoad dye to each sample.
Bring each sample to a total volume of 20 µL using H 2O (for example, if the volume of genomic DNA
Figure 2.1 Gel images showing intact gDNA and degraded gDNA.
Duration
Thirty minutes to an hour for reagents to thaw and half an hour for setup.
12 Axiom™ Genotyping Assay User Manual
Table 2.2 Equipment and consumables required for Genomic DNA Preparation.
Quantity Item
1 each Pipettes:
Single-channel P10 or P20
1 Plate centrifuge
1 Plate spectrophotometer
(required only if no OD measurements available for samples)
1 Vortexer
Reagents
The reagents listed in Table 2.3 are required for this stage.
User-supplied
Reduced EDTA TE Buffer (10 mM Tris-HCl pH 8.0, 0.1 mM EDTA) USB 75793
TEKnova T0223
C. Wipe off the sample plate after removing and before removing the lid to minimize the chances that
the water will enter the well and cause contamination or reaction failure.
NOTE: Do NOT dilute the Reference Genomic DNA 103 control from the Axiom Reagent
Kit. It is already at a working concentration.
4. Freeze or Proceed
At this point you can:
Store the sample plate at –20 °C, or
Proceed to DNA Amplification for:
Automated Target Prep (see Chapter 3, Axiom™ Genotyping Assay: Target Preparation with Biomek
page 95)
NOTE: You can leave the gDNA sample plate at room temperature if proceeding immediately
to DNA Amplification.
14 Axiom™ Genotyping Assay User Manual
IMPORTANT: It is very important to create and upload a GeneTitan Array Plate Registration
file with your sample information prior to loading the Array Plate and hyb tray in GeneTitan.
We recommend that you create (but not upload) this file at the same time you prepare your
plate of genomic DNA. When your samples are ready for hybridization, you will scan the array
plate barcode and upload the file to Affymetrix GeneChip Command Console (AGCC).
GeneTitan Array Plate Registration files contain information that is critical for:
Data file generation during imaging.
Tracking the experimental results for each sample loaded onto an array plate.
Detailed instructions for creating this file are located in Appendix D, Registering Samples in Affymetrix
GeneChip® Command Console on page 237. See also Figure 2.2 for a screen shot showing an example
of a batch registration file.
1. Open AGCC Portal > Samples, and select:
A. GeneTitan Array Plate Registration.
B. The array plate format.
C. Click Download.
2. Enter a unique name for each sample and any additional information.
3. Save the file.
The array plate barcode will not be scanned until you are ready to load the array plate and samples onto
the GeneTitan MC Instrument for processing.
IMPORTANT: Always ensure that your plates are tightly sealed. A tight seal will prevent
sample loss and cross-well contamination.
Vortex:
Reagents 3 times, 1 sec each time at the maximum setting.
Plates 1 sec each corner, and 1 sec in the center at the maximum setting.
16 Axiom™ Genotyping Assay User Manual
Spin — when instructed to spin plates or reagent vials, follow these guidelines unless otherwise
instructed (for example, when centrifuging and drying pellets, 5. Centrifuge and Dry Pellets on
page 61).
Plates:
Figure 3.1 Prompt displayed when the light curtain is broken during the process referred to as Homing All Axes.
Table 3.1 Pipette tip usage for one full run of the Axiom™ Genotyping Assay on the Biomek Workstation
Multi-Channel Multi-Channel Span-8 Span-8
Step P50, Pink AP96 P250, Aqua Span P250, Span P1000,
96 tips, P/N 96 tips, P/N Green Yellow
A21586 717253 96 tips, P/N 96 tips, P/N
379503 987925
Plate Centrifuge
One plate centrifuge is required for the Axiom™ Genotyping Assay. Refer to the Axiom Site Preparation
Guide, P/N 702858, for an appropriate plate centrifuge that can be used with the Axiom Genotyping
Solution When centrifuging and drying pellets as instructed under 5. Centrifuge and Dry Pellets on
page 61, the centrifuge must be able to spin down plates at:
rpm: 4000
rcf: 3200
temperature: 4 °C
In addition, the bottom of the rotor buckets should be soft rubber to ensure that the deep well plates do
not crack. Do not spin plates in metal or hard plastic buckets.
NOTE: Refer to the Axiom Site Preparation Guide, P/N 702858, for an appropriate plate
centrifuge that can be used with the Axiom Genotyping Solution.
The dilution plates are taken off-deck. One is used for OD quantitation to evaluate DNA mass; the
other is used to check fragment size.
Prompt you to manually take samples for DNA quantitation prior to fragmentation.
2. Open Project > Open Project > Axiom Target Prep and click OK (Figure 3.2).
3. Open File > Open to display the Open Method window (Figure 3.3).
Or click the Open Method icon
4. Select Axiom Target Prep and click OK.
.
5. In the left pane of the window, select Axiom Target Prep (Figure 3.4).
The default settings window is displayed on the right.
Figure 3.4 Click Startup Dialog to open the default settings window
NOTE: At present, the Axiom Genome-Wide Assay supports only the 96-array plate format.
Select 96.
Which step do you want to run?
The step that you choose will be the default setting for the runtime prompt. The actual step selected
when the runtime prompt is shown reflects the state of the last completed run of the Axiom Target
Preparation method. For example, if DNA Amplification was the step completed in the last run,
then the step chosen in the subsequent run would be Fragmentation (the next step in the process).
If there is no record of the previous run, then the default choice specified is selected.
Select preferences — These settings are displayed in this window only. You must select/deselect here.
QC check points
20 Axiom™ Genotyping Assay User Manual
Prompt for manual DNA quantitation before fragmentation — the workstation will pause
following inactivation of the DNA amplification reaction to allow you to manually remove an
aliquot of each sample for off-line (manual) DNA quantitation. This extra quality control step
is available for troubleshooting the DNA amplification reaction.
Prepare plates for gel QC and OD after resuspension — the workstation will prepare two plates
of resuspended samples properly diluted for the fragmentation gel QC and OD quantitation
process control checks. See Appendix A, Fragmentation Quality Control Gel Protocol on
page 223 and Appendix B, Sample Quantitation after Resuspension on page 225 for
instructions and result assessment guidelines.
selected, a prompt is displayed asking you to confirm that you want to run a step in test mode
(Figure 3.5). Use this option to perform runs using water only, not actual reagents or samples.
CAUTION: Never process samples in test mode. The assay will fail; all of your
samples and reagents will be lost.
Figure 3.5 Prompt displayed when the custom run option, Run method in test mode, is selected.
Ready Plate on an off-deck thermal cycler or if your Biomek does not have an integrated thermal
cycler. A list of thermal cyclers that have been verified with the assay can be found below. When
selecting this option, select the appropriate plate type that should be used for the Hyb Ready
Plate.
Select the Bio-Rad Skirted option when using the HSP 9631 plate for the PTC-200 or the Bio-
2720 thermal cycler. The Bio-Rad HSS 9601 plate must be stacked onto the Costar Round
Bottom plate from Corning (VWR International P/N 29442-392, E&K Scientific: EK
680568, Corning Mfg PN 3795) for the robot to prepare the Hyb Ready Plate.
We have verified the performance of this assay using the Bio-Rad PTC-200/PTC-200G and Biometra
TRobot 96 on the Beckman Biomek Target Prep Express liquid handler. We have also verified the
performance of this assay using the following off-deck thermal cyclers:
Bio-Rad PTC-200G
Biometra TRobot 96
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 21
IMPORTANT: The default settings you select here will be displayed each time the Axiom
Target Prep window is displayed.
The options displayed in the Startup Dialog box as shown in Figure 3.4 on page 19 must
be selected prior to starting a run. These settings are not prompted for at runtime.
WARNING: Evaporation during denaturation can negatively impact assay performance. Use
the recommended thermal cycler consumables and sealing film to eliminate condensation
and evaporation. The arched, auto-sealing metal plate with P pads as shown in Table 3.2 on
page 22 should be replaced after use as per the manufacturers recommendation.
7. Click Start at the top of the left pane to close the default settings window.
22 Axiom™ Genotyping Assay User Manual
Side view
The ABI 9700 and the ABI 2720 use the semi-skirted 96-well plates
(PN HSS-9601) stacked on a Costar brand Serocluster 96-well
Round Bottom Microtitration plate as shown in the figure below
A 96-well semi skirted PCR plate stacked on a Costar Branded
Round Bottom 96 well plate.
Reagent block template Contact Affymetrix Template on reagent block. Metal posts on block
circled in red.
(designed specifically for use with the
Axiom Reagent Kit)
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 27
Adaptor, Deep Well Plate Beckman Coulter The metal block is the adaptor.
(installed on the Shaking Peltier) P/N A83050
GeneTitan MC Consumables
All consumables for the GeneTitan MC Instrument are provided by Affymetrix. The following table
provides guidance on the consumables that are shipped with the Array Plate.
IMPORTANT: All covers must have barcodes. Discard any cover without a barcode.
IMPORTANT: When running a multi-plate workflow, you must pay careful attention to the
software prompts that tell you which side of the drawer to place or remove a plate/tray.
TIP: Mark the notched corner of each plate, cover and tray with permanent marker to help
ensure proper alignment and loading onto the GeneTitan MC.
CAUTION: Take care not to damage the consumables or bend the blue base posts or scan tray
posts.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 33
Figure 3.6 Proper alignment and loading of plates, covers and trays in the GeneTitan MC.
Tip
Mark the notched corner of each plate,
cover and tray with permanent marker to
help ensure proper alignment and loading.
Figure 3.7 Array Plate with protective blue base and the Hyb Tray aligned and properly loaded into drawer 6.
IMPORTANT: When you install the consumables, ensure that the fingers are retracted (do
not put the consumables onto the drawer tab, or fingers - this indicates that the
instrument is not functioning correctly. See the Important note on on page 37 for an
image of the tabs.
IMPORTANT: Always place the flat side of the cover against the Stain Tray.
Correct placement of cover on Stain Tray. Incorrect placement of cover on Stain Tray.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 35
IMPORTANT: It is critical that you write only on the proper locations of the proper sides of
Hyb and Stain Trays. Do NOT write in any other location, as this can interfere with sensors
inside the GeneTitan MC Instrument and result in experiment failure. To ensure proper
placement of lids onto stain trays, and trays onto the GeneTitan MC Instrument, you can also
mark the notched corner of the trays and lids.
Proper labeling for Hyb Trays and reagent trays is described in:
Labeling for Hyb Trays, below
Labeling for Stain Trays on page 36
Labeling for Hyb Trays
You may label the Hyb Tray on the front part of the short side of the tray, next to the notch at the left,
as shown in Figure 3.9. The proper section for labeling is closest to the notched corner, corresponding to
the A1 and B1 wells.
CAUTION: Writing on the wrong side of the Hyb tray may interfere with the operation of
sensors in the GeneTitan MC Instrument.
36 Axiom™ Genotyping Assay User Manual
IMPORTANT: When you load the plates, or trays, insert them under the tabs, or fingers, that
may protrude into the stage. Confirm that the tray is not resting on these fingers.
38 Axiom™ Genotyping Assay User Manual
NOTE: For this protocol, the term samples includes the positive control.
Duration
Incubation 23 hr
Total time ~ 24 hr
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 41
As required Kimwipes®
1 Oven (must maintain a constant temperature of 30 °C for at least 23.5 hr with a temperature
accuracy of +/– 1 °C)
> 3 array plates per week — we recommend using the Binder ED 53
≤ 3 Array plates per week — OK to use the GeneChip Hybridization Oven or the Binder ED 53
1 Plate centrifuge
1 Vortex
Reagents Required
Axiom Water
42 Axiom™ Genotyping Assay User Manual
NOTE: Refer to page 12 of the Setup Guide and User's manual for Biometra TRobot on the
Biomek FXp. After following the instructions to close the thermal cycler lid, proceed to Home
All Axes on page 44.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 43
IMPORTANT: It is critical that you select Without plate in the Open/Close box. If a plate
is present, remove it now.
1. 2.
3. When:
A. The Warning prompt in Figure 3.19 (A.) is displayed, confirm that no tips are loaded in the Span-
8 Pod, and click OK.
The lines for the Span-8 tips are primed and the next prompt shown in Figure 3.19 (B.) is
displayed.
B. When the intake (syringes and tubing) for the Span-8 tips is clear of bubbles, click OK.
Figure 3.19 Prompts displayed for priming the Span-8 Pod fluidic lines.
A. B.
NOTE: Do not place a frozen sample plate directly on the workstation deck.
Axiom Water
Leave the Axiom Amp Enzyme in the freezer until ready to use.
3. Vortex and spin all reagents (except Axiom Amp Enzyme), then place on ice.
Vortex the Axiom Amp Soln for 30 sec to thoroughly mix.
For the Axiom Amp Enzyme, just before placing on the deck gently flick the tube 3 times to mix
and spin.
4. Preheat the Oven to 30 °C.
We recommend using one of these ovens:
46 Axiom™ Genotyping Assay User Manual
Binder FD53
Affymetrix GeneChip® Hybridization Oven (turn rotation on to 15 rpm)
2. Open File > Open to display the Open Method window (Figure 3.21).
Or click the Open Method icon
3. Select Axiom Target Prep and click OK.
4. At the top of the main window, click the Run button to open the Axiom™ Target Prep window
(Figure 3.22 – A.).
5. In the Axiom Target Preparation window (Figure 3.22 – B.):
A. Select your Array Plate format.
B. Select DNA Amplification.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 47
C. Click OK.
The Deck Layout for DNA Amplification is displayed (Figure 3.23 on page 48).
B.
A. Run button
6. Place the labware and reagents on the deck as directed in the following figures and table:
Figure 3.23 on page 48 — deck layout
Table 3.7 on page 48 — labware and reagents
Figure 3.24 on page 49 — reagent block
IMPORTANT: Axiom Amp Enzyme — Immediately prior to placing on the reagent block,
gently flick the tube with your finger two to three times to mix; then spin. Do NOT vortex.
48 Axiom™ Genotyping Assay User Manual
Figure 3.23 Deck layout window for the DNA Amplification method
Important: No tips
should be loaded onto
the movable arms
referred to as the Span-8
(right) and the
Multichannel
(MC; left) pods.
Table 3.7 Labware and reagent locations on the deck for the DNA Amplification method
Position on Labware Reagent or Samples
Deck
Table 3.7 Labware and reagent locations on the deck for the DNA Amplification method
Position on Labware Reagent or Samples
Deck
Figure 3.24 Placement of reagents on chilled reagent block for GeneTitan reagent tray preparation
IMPORTANT:
Position all plates and the chilled reagent block with A1 in the upper left corner of the frame.
Press reagent tubes into the block to ensure that they are fully seated.
A1
Axiom
A1 Denat
Soln 10X
Axiom
Diagram of reagent block Neutral
without template Soln 10X
Axiom
Amp
Enzyme
50 Axiom™ Genotyping Assay User Manual
7. Check the deck layout to ensure that all labware and reagents are in the proper locations.
NOTE: If the physical deck does not match the Deck Layout and Confirmation window
exactly (Figure 3.23 on page 48), either modify the physical deck to match exactly or
choose Abort in the Deck Layout and Confirmation window.
8. Click OK.
The system flushes the Span-8 fluidics system. Observe the lines and syringes for air bubbles.
9. At the prompt to repeat the Span-8 fluidics system flush:
Click No if no air bubbles are present.
Click Yes if air bubbles are present. Repeat the flush until no air bubbles are present.
Figure 3.25 Flushing the Span-8 fluidics system to purge air bubbles.
Prompt for
Span-8 flush
The DNA Amplification step runs until the Amplification Master Mix has been added to the sample plate.
Once complete, the instructions and prompt shown in Figure 3.26 are displayed.
Follow the instructions for the sample plate (see also User Intervention below).
Follow the instructions for clearing the workstation deck.
IMPORTANT:
Seal the sample plate before placing in the
oven.
Always discard the used multi-channel pipette
tips in position P3.
Always store the reagent block at 4 °C.
User Intervention
1. Remove the sample plate.
2. Blot the top of the plate with a Kimwipe to remove any droplets that may be present.
3. Tightly seal the plate.
4. Place in a preheated oven and incubate at 30 °C for 22 to 24 hr.
NOTE: If using a GeneChip® Hybridization Oven, place the plate on the bottom of the
oven. Plates do not rotate.
Duration
1 Freezer, –20 °C
As required Kimwipes
1 Plate centrifuge, 4 °C
Beckman Labware
Reagents Required
User-supplied
Figure 3.27
5. Setup the deck with the labware and reagents as shown in Figure 3.28 on page 56, Table 3.11 on
page 56, and Figure 3.29 on page 57.
IMPORTANT: Remove the seal from the sample plate before placing on the deck.
56 Axiom™ Genotyping Assay User Manual
Table 3.11 Labware and reagent locations on the deck for the Fragmentation
Position Labware Reagent or Samples
on Deck
Table 3.11 Labware and reagent locations on the deck for the Fragmentation
Position Labware Reagent or Samples
on Deck
Figure 3.29 Placement of reagents on chilled reagent block for GeneTitan reagent tray preparation
IMPORTANT:
Always position the chilled reagent block with A1 in the upper left corner of the frame.
Press reagent tubes into the block to ensure that they are fully seated.
A1
Axiom
A1 Frag
Enzyme
Axiom
Diagram of reagent block Frag
without template Diluent
Axiom
Precip
Soln 2
6. Check the deck layout to ensure that the labware, reagents and samples are in the proper locations.
NOTE: If the physical deck does not match the Deck Layout and Confirmation window
exactly (Figure 3.28 on page 56), either modify the physical deck to match exactly or
choose Abort in the Deck Layout and Confirmation window.
7. Click OK to continue.
58 Axiom™ Genotyping Assay User Manual
The system will automatically flush the Span-8 fluidics system. Observe the lines and syringes for air
bubbles.
8. At the prompt to repeat the Span-8 fluidics system flush:
Click No if no air bubbles are present.
Click Yes if air bubbles are present. Repeat the flush until no air bubbles are present.
The Fragmentation step begins. The sample plate is incubated at 65 °C to inactivate amplification. If you
selected Prompt for manual DNA quantitation in the default software settings, you will then be prompted
to remove an aliquot of each sample for a quantitation process control. The plate will remain at 40 °C
until the aliquots have been collected.
NOTE: Remain near the Biomek FXP Target Prep Express if you are going to remove
aliquots for quantitation. Avoid leaving the samples at 40 °C for a long period of time.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 59
Summary of Fragmentation
Incubate on deck
30 min at 40 °C
4. Precipitation
To freeze the samples:
1. Remove the Precipitation Plate from the deck.
2. Blot the top of the plate with a Kimwipe and seal tightly.
3. Place the plate in a –20 °C freezer overnight to precipitate.
4. Return to the Biomek workstation and clear the deck.
CAUTION: During this step, handle the plate gently to avoid disturbing the pellets. Do not
bump or bang the plate.
WARNING: We strongly recommend that you use the Eppendorf 5810R at 3200 xg
(4000 rpm/) with:
Rotor A-4-81
Plate carrier DL 050 (rubber bottom)
If not using the Eppendorf 5810R with recommended rotor and plate carrier, centrifuge
the samples at 3200 xg (or rcf) at 4 °C.
Do not use the 5810R with the A-4-62 rotor and WO-15 plate carrier (hard bottom). Use of
this rotor and plate carrier may result in cracked plates, loss of sample, unbalanced
centrifugation, damage to the instrument and possible physical injury.
3. Immediately after the 40 min centrifugation period, empty the liquid from the plate as follows:
A. Remove the seal.
B. Invert the plate over a waste container and allow the liquid to drain.
C. While still inverted, gently press the plate on a pile of Kimwipes on a bench and leave it for 5 min.
4. Turn the plate right side up and place in an oven for 20 min at 48 °C to dry.
NOTE: If using a GeneChip® Hybridization Oven, place the plate on the bottom of the
oven. Plates do not rotate.
Duration
Resuspension and Hybridization Preparation
1 Plate centrifuge, 4 °C
1 Vortex
For off-deck thermal cycling using the ABI 9700 or ABI 2720 thermal cycler
Note: The HSS-9601 plate stacked on the Costar brand serocluster round-bottom plate should
only be used on position P2 on the Biomek FXp deck. See Figure 3.35 on page 75.
1 Plate, OD
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 63
Reagents Required
IMPORTANT: The pellets and the resuspension buffer must be at room temperature before
proceeding with this step.
Allow the pellets and the Axiom Resusp Buffer to equilibrate to room temperature for 1.5 hr prior to
starting this step.
NOTE: We strongly recommend that you run two quality process controls during this step:
A gel to verify successful fragmentation
An OD quantitation of each resuspended sample
The Biomek FXP Target Prep Express can be set to prepare fragmentation and OD plates that
are ready for processing. These process controls must be selected as a run preference prior to
starting a run. See Set the Biomek Software Default Settings on page 17 for instructions.
5. Prepare the deck as shown in Figure 3.31, Table 3.15 and Figure 3.32 on page 67.
Label the BIO-RAD plates placed on the deck in positions P2 and P11. For example:
P2 — Hyb Ready + <sample description>
P11 — Gel QC
NOTE: Verify the appropriate plastic consumables are being used on the deck for the Hyb
Reaction Plate when using the ABI 9700 or ABI 2720 thermal cycle.
Figure 3.31 Deck layout for the Resuspension and Hybridization Preparation method
Dilution QC plate
Gel QC plate
bottom of plate)
If not selected, these plates will not
appear in the deck layout.
See Set the Biomek Software
Default Settings on page 17 for
more information.
Table 3.15 Labware and reagent locations on the deck for Resuspension and Hybridization Preparation
Position Labware Reagent or Samples
on Deck
Table 3.15 Labware and reagent locations on the deck for Resuspension and Hybridization Preparation (Continued)
Position Labware Reagent or Samples
on Deck
Warning: When using the ABI 9700 or the ABI 2720 off-deck thermal cycler for denaturing the hyb-ready
plate, the Bio-Rad HSS 9601 Hard-Shell Full-Height 96-Well Semi-Skirted PCR Plate must be stacked on a
CoStar Brand Serocluster Round Bottom plate (29442-392 from VWR International or EK-680568 from E&K
Scientific) as shown in Table 3.2 on page 22.
The HSS9601 and HSP9631 PCR plates are not interchangeable on the Biomek FXp deck.
Figure 3.32 Placement of reagents on chilled reagent block for GeneTitan reagent tray preparation
IMPORTANT:
Position all plates and the chilled reagent block with A1 in the upper left corner of the frame.
Press reagent tubes into the block to ensure that they are fully seated.
A1
Axiom
A1 Hyb
Soln 1
6. Check the deck layout to ensure that the labware, reagents and samples are in the proper locations.
NOTE: If the physical deck does not match the Deck Layout window exactly (Figure 3.31
on page 65), either modify the physical deck to match exactly or choose Abort in the Deck
Layout window.
About Stage 4
You will proceed to Stage 4 in one of two ways:
Directly from Stage 3 without interruption.
With samples that were stored at –20 °C after Stage 3.
This stage, Preparation for GeneTitan, can include any combination of the options shown in Figure 3.36
on page 76 and Figure 3.37 on page 82. The first two options complete target preparation on the Biomek
FXP Target Prep Express.
The options are:
Option 1
Denature samples - the Hyb Rxn plate is placed on the thermal cycler and the samples are denatured.
At this step, you must also select Transfer denatured samples to Hyb Tray. After the denature program
has completed, the block will hold temperature until the user has dismissed the prompt, indicating that
they are ready to continue the method to transfer the samples to the hyb tray and then carry it to the
GeneTitan. Do not leave samples on the thermal cycler for a long period of time.
Option 2
Transfer denatured samples to Hyb Tray - the denatured samples are transferred from the Hyb Rxn
plate to the Hyb Tray, and are ready to load onto the GeneTitan MC Instrument.
NOTE: When using an ABI 9700 or the ABI 2720 thermal cycler for off-deck denaturation, the
Bio-Rad Hard-Shell Full-Height 96-Well Semi-Skirted PCR Plate (hyb reaction plate) must be
stacked on a Costar brand Serocluster Round Bottom plate from Corning (Corning Mfg P/N
3795)
Option 3
Prepare GeneTitan® reagent plates (option 3) - the solutions required for the fluidics stage of array
processing on the GeneTitan MC Instrument are prepared and aliquoted to the appropriate trays (three
stain trays, one ligation tray, one fix tray and one scan tray with Holding Buffer).
When performing a 1 plate workflow, select two options (option 1 and option 2).
Denature samples and Transfer denatured samples to hyb tray when you are preparing the samples to
begin hybridization in the GeneTitan.
- or select one option (option 3)-
Prepare GeneTitan reagent plates to prepare reagents for loading onto the GeneTitan the following
day when the plate is finished with the hybridization period and about to begin GeneTitan fluidics
processing.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 73
NOTE: In the 8 plate workflow, all three options will only be selected for middle days of the
workflow. On the first day of the workflow, only the Denature samples and Transfer
denatured samples to hyb tray options will be used. On the last day of the workflow, only
the Prepare GeneTitan reagent plates option will be used.
NOTE: Note: When using an off-deck thermal cycler, avoid letting the samples sit a room
temperature for an extended period of time after denaturation. Do not begin denaturation
at the same time as the GeneTitan reagent preparation.
3. Click OK.
4. Wait 18 minutes, then begin denaturation of the hyb ready samples using the off-deck thermal cycler.
5. Upon completion of the GeneTitan reagent plate preparation, load reagent plates and scan tray into
the GeneTitan MC instrument
6. Once the reagents are loaded into the GeneTitan MC instrument and the denaturation method on the
thermal cycler is complete, retrieve the denatured hyb ready samples from the thermal cycler
7. Return to Biomek FXp and begin a new method, select Preparation for GeneTitan step with only the
Transfer denatured samples to hyb tray box checked, click OK.
8. Prepare deck as shown in Figure 3.35 (note that a spacer must be used with HSS-9601 plates for ABI
thermal cyclers).
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 75
Figure 3.35 Deck Layout for Off-deck thermal cycler option and position P2
OR
Bio-Rad Hard-Shell Full-Height 96-Well Semi- Skirted
PCR Plate(HSS 9601) stacked on a Costar Round
Bottom plate for off-deck thermal cycling with the
ABI 9700 or 2720 thermal cycler
9. Click OK.
10. After the denatured samples have been transferred to the GeneTitan hyb tray, load hyb tray into
GeneTitan
76 Axiom™ Genotyping Assay User Manual
IMPORTANT: The reagent plates prepared in the third sub-step, Prepare GeneTitan® reagent
plates:
Are NOT for use with the Hyb Tray currently being prepared on the Biomek workstation.
Are for the continued processing of an Axiom Array Plate that is:
– already on the GeneTitan MC Instrument.
– has completed the hybridization stage.
– is ready for transfer to the fluidics area.
The reagent plates for the fluidics stage on the GeneTitan MC Instrument CANNOT be
prepared in advance. Do not prepare these plates if there is no array plate ready for the
fluidics stage. Once prepared, these plates must be loaded onto the instrument as soon as
possible and cannot be stored.
Duration
Denaturation
Table 3.17 Time required to transfer denatured samples to the Hyb Tray
Hands-on time 2 min
Table 3.18 Time required to prepare reagent trays for the GeneTitan MC Instrument
Hands-on time ~15 min
NOTE: When you select Denaturation and Preparation of the GeneTitan Reagent Trays, the
on-deck processes run concurrently.
Denature Samples
Table 3.20 Consumables required for transferring denatured samples to a Hyb Tray
Item Quantity
Hyb Tray 1
(from an Axiom Genome-Wide CEU 1 Array Plate Kit or the
GeneTitan Consumable Kit, P/N 901606)
78 Axiom™ Genotyping Assay User Manual
Table 3.20 Consumables required for transferring denatured samples to a Hyb Tray
Item Quantity
Axiom Genome-Wide CEU 1 Array Plate Kit or the 1 Scan Tray with cover
GeneTitan Consumable Kit: and protective base
Scan Tray with cover 5 Stain Trays
Stain Tray 5 Covers
Cover for Stain Tray
NOTE: See Table 3.3 on page 28 for GeneTitan MC Consumable part numbers.
Reagents Required
Table 3.22 Reagents required for GeneTitan MC Instrument reagent plate preparation.
Module Reagent Thaw on Bench Place on Ice Place on Bench
Top, Then Place Top at Room
on Ice Temperature
Axiom Wash A
Module 4 for 30 min
Box 2 of 2
2 to 8 °C Axiom Stain 1-A*
Axiom Water
* These solutions are light sensitive. Keep tubes out of direct light for a prolonged period of time.
80 Axiom™ Genotyping Assay User Manual
NOTE: The presence of some precipitate is OK and will not adversely impact assay
performance. Follow the instructions below to resuspend any precipitate before use.
NOTE: The presence of some precipitate is OK and will not adversely impact assay
performance. Follow the instructions below to resuspend any precipitate before use.
3. Prepare the Sample Plate if Stored at –20 °C and the Array Plate
To prepare samples that were stored at –20 °C:
1. Vortex briefly; then spin at 1000 rpm for 30 sec.
2. Place on ice.
WARNING: Do not remove the array plate from the protective base or touch the surface
of any arrays.
3. Leave the array plate in the pouch, unopened but placed on the bench for a minimum of 25 minutes
before opening and loading on the GeneTitan MC to allow the plate to come to room temperature.
IMPORTANT: It is important to deionize the GeneTitan Instrument trays to remove any static
electricity on the trays. Static attraction by the trays may prevent the tray cover from being
lifted up by the instrument.
NOTE: Prior to placing the arched metal lid on the deck, be sure to clean the attached
Microseal P pad with 70% ethanol and dry it. Refer to the package insert for this product
for further information on cleaning and replacement.
82 Axiom™ Genotyping Assay User Manual
Figure 3.38 Deck layout for Preparation for GeneTitan — denature, transfer to Hyb Tray, and GeneTitan plate preparation
IMPORTANT: Destatic the bottom of the Hyb Tray, Stain Trays, and the protective base of the Scan Tray prior to
placing on the deck. See the section Deionization Procedure for GeneTitan Trays and Covers on page 241.
Transfer denatured
Table 3.23 Labware and reagent locations on the deck for GeneTitan reagent preparation
Position Labware Reagent or Samples
on Deck
If Denature samples and Transfer denatured samples to Hyb Tray is selected, (no reagent tray preparation), only
the labware listed below is required:
P3 Hyb Tray* —
P5 Fix* —
P8 Stain 2* —
P9 Lig* —
P10 Tube block with one insert, room temperature See Figure 3.42 on page 86.
2 4 6
Pour Axiom Water into reservoir 1 Empty Empty Empty
Pour Axiom Ligation Buffer into reservoir 5
or PTC 0240. Bio-Rad Hard-Shell Full-Height 96-Well Semi-Skirted PCR Plate (HSS 9601) stacked on a Costar Round
Bottom plate for off-deck thermal cycling with the ABI 9700 or 2720 thermal cycler
*These trays are included in Axiom Genome-Wide and Custom myDesign™ Array Plate Kits.
Label each of these stain trays as described above as described in Labeling GeneTitan Hybridization and
Reagent Trays. For example, label the Stain tray to be placed in P9 with the word Lig. This tray will contain the
Ligation master mix.
84 Axiom™ Genotyping Assay User Manual
IMPORTANT: It is critical that you write only on the proper locations of the proper sides of
hyb and stain trays. Do NOT write in any other location, as this can interfere with sensors
inside the GeneTitan MC Instrument and result in experiment failure. To ensure proper
placement of lids onto stain trays, and trays onto the GeneTitan MC Instrument, you can also
mark the notched corner of the trays and lids.
Proper labeling for Hyb Trays and reagent trays is described in:
Labeling for Hyb Trays, below
Labeling for Stain Trays on page 36
Writing on the wrong area of the Hyb tray may interfere with the operation of sensors in the GeneTitan
MC.
Labeling for Stain Trays
You may label the stain trays on the left side of the front of the tray as shown in Figure 3.40. The correct
side is closest to the notched corner, corresponding to the A1 through C1 wells.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 85
Figure 3.41 Placement of reagents on chilled reagent block for GeneTitan reagent tray preparation
IMPORTANT:
Position all plates and the chilled reagent block with A1 in the upper left corner of the frame.
Press reagent tubes into the block to ensure that they are fully seated.
A1
Axiom Axiom
Stain 2- Probe
A Mix 2
Axiom
A1 Ligation
Soln 2
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 87
8. Check the deck layout to ensure that the labware, reagents and samples are in the proper locations.
NOTE: If the physical deck does not match the Deck Layout window exactly (Figure 3.38
on page 82), either modify the physical deck to match exactly or choose Abort in the Deck
Layout window.
Go To Step 7c: if you are performing a 2-8 plate workflow, and you are denaturing samples for the
2nd plate and are preparing ligation reagents for the 1st plate. The samples for the 2nd HT array plate
will be denatured and transferred into the Hyb tray. The Hyb tray will be placed in the GeneTitan
with the array plate in preparation for hybridization. The robot will also prepare reagents for
Ligation-Wash-Stain for the 1st array plate that was placed in the GeneTitan hyb oven 24 hours ago.
88 Axiom™ Genotyping Assay User Manual
IMPORTANT: Immediately load the Array Plate and Hyb Tray into the GeneTitan MC
Instrument.
1. Once the GeneTitan MC Instrument is ready, return to the Biomek FXP Target Prep Express click OK
(prompt shown in Figure 3.44 above).
The denatured samples are then taken off the thermal cycler and are transferred to the Hyb Tray.
Ensure that there are no air bubbles present in the hyb tray. Puncture any air bubbles that you see
IMPORTANT: Immediately load the reagent plates onto the GeneTitan MC Instrument. Do
not leave denatured samples or reagent plates at room temperature for any length of time.
3. Transfer the reagent plates, Scan Tray to the GeneTitan MC Instrument and load. Refer to the section
Stage 3 — Ligate, Wash, Stain and Scan on page 172 to continue the process on the GeneTitan MC
instrument
4. Return to the Biomek FXP Target Prep Express and clear the deck (See Figure 3.43 on page 88).
Always discard the used multi-channel pipette tips in position P9.
Always store the reagent block at 4 °C.
Clean the Microseal P Pad by wiping with 70% EtOH and dry.
Refer to the package insert for this product for further information on cleaning and replacement.
NOTE: Note: When using an of-deck thermal cycler please refer to the instructions for the Off-
deck thermal cycler option on page 73.
90 Axiom™ Genotyping Assay User Manual
1. Once the reagent plates are prepared and sample denaturation is complete, the prompt in Figure 3.44
on page 88 is displayed (do not click OK yet). Remove the reagent plates and Scan Tray with Hold
Buffer from the deck and cover with the appropriate lids.
2. Examine each tray to ensure that:
All of the wells as appropriate (96) have been filled. If any wells do not contain reagents, then
manually add reagents to these wells.
There are no air bubbles present. Puncture any air bubbles that you see using a pipette tip.
3. Transfer the reagent plates, Scan Tray and Array Plate to the GeneTitan MC Instrument and load.
IMPORTANT: Immediately load the reagent plates and the Hyb Tray onto the GeneTitan
MC Instrument. Then load the Array Plate and Hyb Tray. Do not leave denatured samples
or reagent plates at room temperature for any length of time.
4. Return to the Biomek FXP Target Prep Express click OK at the prompt shown in Figure 3.44 on
page 88.
The denatured samples are then taken off the thermal cycler and are transferred to the Hyb Tray.
5. Transfer the Hyb Tray to the GeneTitan MC Instrument and load. Refer to the section Axiom™
Genotyping Assay: Array Processing with the GeneTitan® MC Instrument on page 149 for the proper
way of loading.
6. Transfer the reagent plates, Scan Tray to the GeneTitan MC Instrument and load. Refer to the section
Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument on page 149 to
continue the process on the GeneTitan MC Instrument
7. Return to the Biomek FXP Target Prep Express and clear the deck (Figure 3.45 on page 89).
Always discard the used multi-channel pipette tips in position P9.
Always store the reagent block at 4 °C.
Clean the Microseal P Pad by wiping with 70% EtOH and dry.
Refer to the package insert for this product for further information on cleaning and replacement.
Chapter 3 | Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep Instrument 91
Manual target preparation for the Affymetrix Axiom Genome-Wide assay enables you to perform target
preparation to process 96 samples at a time without the use of automation equipment.
NOTE: Array handling and processing protocols still require the use of a GeneTitan MC, as
described in Chapter 5, Axiom™ Genotyping Assay: Array Processing with the GeneTitan®
MC Instrument on page 149.
IMPORTANT: Read all the instructions in Before You Start, below, before performing manual
target preparation.
A list of all equipment and resources required for the Axiom Assay with manual target preparation is in
the Axiom Site Prep Guide P/N 702858.
The protocol for manual target preparation is presented in the following sections:
Before You Start, below
Stage 1 — DNA Amplification on page 107
Stage 2 — Fragmentation and Precipitation on page 115
Stage 3 — Drying, Resuspension and QC on page 122
Stage 4 — Denaturation and Hybridization on page 128
Stage 5 — Manually Preparing Ligation, Staining, and Stabilization Reagent Trays for the GeneTitan
MC Instrument on page 134
Using the manual target preparation protocol, a single operator can process three sample and array plates
a week during a forty-hour work week for a total of 288 samples. See Chapter 8, Manual Target
Preparation for Processing Three Axiom Array Plates per Week on page 209 for more information.
Room Temperature
When referred to in the Axiom Genome-Wide Assay, room temperature is 18 to 25 °C.
Special Requirements
Amplification Staging Room
Precautions are required when manipulating genomic DNA or setting up amplification reactions to avoid
contamination with foreign DNA amplified in other reactions and procedures.
It is highly recommended that genomic DNA manipulations and amplification reaction set up are
performed in a dedicated amplification staging room separate from the main laboratory. This
amplification staging room should have a dedicated set of pipettes and plasticware.
If no dedicated amplification staging room is available, use of a dedicated bench or a dedicated biosafety
hood and dedicated pipettes is suggested.
If no dedicated bench is available, a set of dedicated pipettes is recommended.
Fume Hood
At certain steps in the protocol we recommend the use of adequate local or general ventilation to keep
airborne concentrations low.
A fume hood is suggested as a way to achieve the desired concentration. Thus a fume hood is strongly
recommended for several steps of this assay.
Copies of the Material Safety Data Sheets for the kit components are available on the Affymetrix website
at www.affymetrix.com
Control Recommendations
A negative control is not required for this assay.
We recommend including one positive control with every set of samples processed. A positive control
(Axiom Reference Genomic DNA 103) is included in the Affymetrix® Axiom Reagent Kit.
Bio-Rad Hard Shell 96-well plate, p/n HSP9631\Refer to the Axiom Site Prep Guide, P/N 702858, for
vendor information.
96-well UV Star Plates, 370 µL/well
NOTE: The ABI 9700 and the ABI 2720 use the half-skirted 96-well plates (PN HSS-9601)
IMPORTANT: Always use the heated lid option when programming protocols.
We have verified the performance of this assay using the following thermal cyclers: Bio-Rad PTC-200,
Biometra TRobot 96, ABI 9700 with a gold, silver or aluminum block (ABI 2720 and the Bio-Rad MJ
0240G). The performance of this assay has not been verified with other thermal cyclers. Use of other
thermal cyclers may result in assay failure and may violate the Axiom Array and Reagent replacement
policy. The thermocycler needs to be programmed with the “Axiom Denature” protocol:
1. 95 °C 20 min
2. 48 °C 3 min
3. 48 °C hold
Use the heated lid option when setting up or running the protocol.
WARNING: Evaporation during denaturation can negatively impact assay performance. Use
the recommended thermal cycler consumables and sealing film to eliminate condensation
and evaporation. The arched, auto-sealing metal plate with P pads (used with the TRobot
thermal cycler) as shown in Table 3.2 on page 22 should be replaced after use as per the
manufacturers recommendation.
98 Axiom™ Genotyping Assay User Manual
Bio-Rad PTC-200 Bio-Rad Hard-Shell Thin-Wall 96-Well MicroAmp Clear Adhesive Film from
Skirted PCR Plates, P/N HSP9631 Applied Biosystems (p/n 4306311)
ABI 9700 Bio-Rad P/N HSS-9601 (half skirted plate) MicroAmp Clear Adhesive Film from
Applied Biosystems (p/n 4306311)
ABI 2720 Bio-Rad P/N HSS-9601 (half skirted plate) MicroAmp Clear Adhesive Film from
Applied Biosystems (p/n 4306311)
Bio-Rad Tetrad 2 PTC-0240 Bio-Rad Hard-Shell Thin-Wall 96-Well MicroAmp Clear Adhesive Film from
Skirted PCR Plates, P/N HSP9631 Applied Biosystems (p/n 4306311)
* Microseal "B" film from BioRad (p/n MSB-1001) may be used in place of MicroAmp Clear Adhesive Film for the BioRad and ABI thermal cyclers.
Oven Recommendations
The following ovens are recommended:
ED 53 drying oven by Binder (supplier VWR)
Specifications:
distribution.
For either Affymetrix GeneChip Hyb Oven, plates are placed in the bottom of the oven. To avoid
interfering with the rotation apparatus, do not stack plates in the oven.
Up to 2 plates can fit in a Hyb Oven 640
For the Hyb Oven 640, place the plate away from the heat vent.
Multiple ovens are required for manual target preparation. The exact number depends upon whether you
are running only a single sample plate and array plate through the workflow, or if you are trying to run
the three plate/week manual target preparation workflow.
If you are running individual plates, you will need two ovens for the workflow.
If you are running the three plate /week workflow, you will need three ovens.
See Changing Oven Temperatures for the Three Plate Workflow on page 211 of Chapter 8, Manual
Target Preparation for Processing Three Axiom Array Plates per Week for more information.
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 99
Procedures
This section covers procedures you may need to do repeatedly during the workflow, or which are critical
to the performance of the assay.
IMPORTANT: Always ensure that your plates are tightly sealed. A tight seal will prevent
sample loss and cross-well contamination, particularly when plates are being vortexed.
Spin — when instructed to perform a brief spin down of plates or reagent vials, follow these guidelines
unless otherwise instructed.
Plates:
1 3
2 4
NOTE: In the procedures, “vortex twice” means to repeat the vortexing step.
100 Axiom™ Genotyping Assay User Manual
Sample Quantitation
This protocol has been optimized using a PicoGreen assay to determine genomic DNA concentrations.
Other quantitation methods such as UV Absorbance may give different readings. Therefore, you should
correlate readings from other methods to the equivalent PicoGreen-determined concentration.
Please refer to Chapter 2, Genomic DNA Preparation and Requirements on page 9 for more information.
IMPORTANT: Use only the reagents from the Axiom Reagent Kit for this assay. These
reagents are not interchangeable with reagents from other Affymetrix reagent kits.
NOTE: The volumes of Master Mixes prepared are designed to provide consistent handling of
reagents and consistent assay results. The percent overage of different master mixes may
differ, depending upon the reagent volumes involved.
P20 1-20 uL
P200 20-200 uL
We recommend the use of Rainin pipettes and tips. Affymetrix has only verified the use of Rainin multi
channel pipettes in this assay. The use of other pipettes (such as other brands or 8-channel pipettes)
may impact the timing of the protocol and may adversely impact the assay. Pipette substitution may
violate the terms of the Axiom Assay and Array Replacement policy.
Always use pipettes that have been calibrated to ± 5%.
It is essential that you be proficient with the use of single- and multi-channel pipettes.
To familiarize yourself with the use of multi-channel pipettes, we strongly recommend practicing
several times before processing actual samples. Use water and solution basins to get a feel for
aspirating and dispensing solutions to multiple wells simultaneously.
Single-channel Pipettes and Serological Pipettes
Use single-channel pipettes for preparing Master Mixes and for puncturing bubbles in GeneTitan Trays.
The single-channel pipettes will not be used for working with the plates or trays otherwise.
Use single channel pipettes for volumes less than or equal to 2 mL. For volumes between 1 and 2 mL,
add the reagent in two portions with a fresh tip for each portion.
Use serological pipette for volumes > 2 mL.
In most cases, 25 or 50 mL serological pipettes will not fit into the mouths of the reagents bottles.
Multiple transfers using 5 or 10 mL serological pipettes will need to be performed.
Multi-Channel Pipettes
Use 12-channel pipettes when working to add Master Mix or to transfer samples to plates and GeneTitan
trays.
Use a pipette of appropriate size for the volume of liquid being transferred.
Change pipette tips after each transfer or addition
102 Axiom™ Genotyping Assay User Manual
GeneTitan MC Consumables
All consumables for the GeneTitan MC Instrument are provided by Affymetrix. The following table
provides guidance on the consumables that are shipped with the Array Plate.
IMPORTANT: All GeneTitan trays and tray covers must have barcodes. Discard any
consumable tray or tray cover without a barcode.
IMPORTANT: It is critical that you write only on the proper locations of the proper sides of
Hyb and Stain Trays. Do NOT write in any other location, as this can interfere with sensors
inside the GeneTitan MC Instrument and result in experiment failure. To ensure proper
placement of lids onto stain trays, and trays onto the GeneTitan MC Instrument, you can also
mark the notched corner of the trays and lids.
Proper labeling for Hyb Trays and reagent trays is described in:
Labeling for Hyb Trays, below
Labeling for Stain Trays on page 106
Labeling for Hyb Trays
You may label the Hyb Tray on the front part of the short side of the tray, next to the notch at the left,
as shown in Figure 4.2. The proper section for labeling is closest to the notched corner, corresponding to
the A1 and B1 wells.
Writing on the wrong side of the Hyb tray, or on the wrong part of the long side, may interfere with the
operation of sensors in the GeneTitan MC.
Labeling for Stain Trays
You may label the Stain trays on the left side of the front of the tray as shown in Figure 4.3. The correct
side is closest to the notched corner, corresponding to the A1 through C1 wells.
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 107
(see Stage 5 — Manually Preparing Ligation, Staining, and Stabilization Reagent Trays for the
GeneTitan MC Instrument on page 134 for detailed information).
NOTE: For this protocol, the term samples includes the positive control.
Duration
For 96 samples:
108 Axiom™ Genotyping Assay User Manual
Input Required
gDNA Sample Plate, with 20 µL of each gDNA diluted to a concentration of 10 ng/µL.
See Genomic DNA Preparation on page 11 for more information.
Table 4.4 Equipment and consumables required for Stage 1 — DNA Amplification.
Quantity Item
1 15 mL tube holder
Table 4.4 Equipment and consumables required for Stage 1 — DNA Amplification.
Quantity Item
1 each Pipettes:
Single-channel P100
Single-channel P200
Single-channel P1000
Multi-channel P20
Multi-channel P1200
1 Pipet-aid
1 Oven, set at 30 °C
1 50 mL Falcon tube
2 15 mL Falcon tube
1 Vortexer
1 Timer
Reagents Required
Table 4.5 Reagents required for Stage 1 — DNA Amplification on page 107
Axiom Reagent Kit Module
Axiom Water
NOTE: Leave the Axiom Amp Enzyme at -20 °C until ready to use.
Axiom Amp Soln Thaw at Room Temp Vortex twice Place on ice
(~1 hr)
(see note below)
Axiom Denat Soln Thaw at Room Temp Vortex and spin Keep at Room Temp
Axiom Neutral Soln Thaw at Room Temp Vortex and spin Keep at Room Temp
Axiom Amp Enzyme Soln Keep at -20 °C Just before use, flick tube 3X, Keep in -20 °C cooler until
spin, and place in -20 °C ready to use
portable cooler
Notes:
*Temp Out of Module: temperature reagent is held at immediately after removal from module
NOTE: Allow ~ 1 hour for Axiom Amp Soln to thaw on the benchtop at room temperature.
If the solution is not completely thawed after 1 hour, vortex briefly and return to the
benchtop to complete thawing.
IMPORTANT: The Axiom Amp Soln must be thoroughly mixed before use. Place on ice
immediately after thawing.
IMPORTANT:
gDNA samples must be brought to room temperature before proceeding with
denaturation.
gDNA samples must be 20 μL volume of each gDNA at a concentration of 10 ng/μL (see
Genomic DNA Preparation on page 11).
NOTE: It is recommended to use a chilled metal chamber for 50 mL tubes to stabilize the Amp
MM tube in the ice bucket.
Timer
Axiom
Water
D MM Tips
Solution
Basins
gDNA
N MM Sample Plate
2. Prepare the Denaturation Master Mix and the Neutralization Master Mix
Total Volume 40 μL 5 mL
NOTE: Pipette directly into the liquid of the well; do not mix by pipetting up and down.
NOTE: This plate is now known as the Denaturation plate.
5. Seal and vortex the Denaturation plate. Start the timer for 3 minute incubation.
6. Do a quick spin on the Denaturation plate in a room temperature centrifuge by bringing centrifuge
speed to 1000 rpm (takes ~ 1 minute).
A. Keep a record of any wells that visually appear to have a particularly low or high volume; these
samples may need to be repeated.
B. Do NOT stop to measure volumes; proceed without delay.
8. Complete the 3 minute incubation on the benchtop at room temperature.
While completing the incubation at room temperature, pour the Neutralization Master Mix into the
solution basin as described in Step 1 on page 113.
9. After incubation immediately add the Neutralization Master Mix as described in 4. Add
Neutralization Master Mix to Samples on page 113.
NOTE: Pipette directly into the liquid of the well; do not mix by pipetting up and down.
NOTE: This plate is now known as the Neutralization plate.
Metal Chamber
for 50 mL tubes Axiom Amp Enzyme
in –20 °C cooler
Solution
Basin
Amp MM
tube
Neutralization
Plate
IMPORTANT: Complete this step as efficiently as possible and with minimal delays. Once the
Amp Enzyme is added to the master mix, finish this step with no delays.
NOTE: It is recommended to use a chilled metal chamber for 50 mL tubes to stabilize the Amp
MM tube in the ice bucket.
2. Per Table 4.9, pipette the appropriate amount of Axiom Amp Soln into the 50 mL tube labeled Amp
MM in the chilled metal chamber.
NOTE: Use a 10 mL serological pipette to transfer Axiom Amp Soln to the tube. The bottles
have narrow openings, and a 25 mL pipette will not fit through the mouth of the bottle.
3. Remove the Axiom Amp Enzyme from the freezer and place in a portable cooler at –20 °C.
A. Flick the Axiom Amp Enzyme tube three times, then spin.
B. Per Table 4.9 on page 114, add the appropriate amount of Axiom Amp Enzyme to the tube labeled
Amp MM and place on ice.
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 115
IMPORTANT: Keep the Amplification master mix solution basin and Neutralization
plate on ice throughout this procedure.
E. Carefully remove the seal from the Neutralization plate and discard the seal.
F. Using a P1200 12 channel pipette, slowly add 320 µL Amplification Master Mix to each well of
the Neutralization plate, pipetting down the wall of the well (there will now be a total volume of
400 µL/well).
Do not mix by pipetting up and down.
Change tips between each addition.
NOTE: After adding the Amplification Master Mix, the plate is now known as the
Amplification plate.
G. Seal, vortex twice, and spin the Amplification plate for one minute at 1000 rpm.
H. Place the sealed amplification plate in an oven set at 30 °C and leave undisturbed for 23 ± 1 hr.
NOTE: If using a GeneChip® Hybridization Oven, place the plate on the bottom of the
oven. Plates do not rotate. Set the rotor for 15 rpm speed. See Oven Recommendations
on page 98 for more information.
6. Freeze or Proceed
After the incubation finishes, you can either:
Proceed to Stage 2 — Fragmentation and Precipitation on page 115.
Store the amplification plate at –20 °C.
NOTE: If freezing, do not perform the stop amplification reaction step before you store the
Amplification plate at –20 °C. The Stop Amplification Reaction step will be performed after
thawing the frozen plate, as described in 1: Stop Amplification Reaction on page 117.
Duration
Total time: approximately 2 hours.
116 Axiom™ Genotyping Assay User Manual
Input Required
Amplification plate from Stage 1 — DNA Amplification on page 107.
Table 4.10 Equipment and consumables required for Stage 2 — Fragmentation and Precipitation
Quantity Item
1 each Pipettes:
Single channel P1000
Multi-channel P200
Multi-channel P1200
Table 4.10 Equipment and consumables required for Stage 2 — Fragmentation and Precipitation
Quantity Item
1 Pipet-aid
1 15 mL Falcon Tube
1 50 mL Falcon Tube
1 Vortexer
Reagents Required
User-supplied
NOTE: If the plate has been frozen and stored, it must be thawed using the instructions in
Thawing Frozen Plates of Amplified DNA on page 212. Allow an hour to thaw.
118 Axiom™ Genotyping Assay User Manual
NOTE: Leave the Axiom Frag Enzyme at –20 °C until ready to use.
Axiom 10X Frag Buffer Thaw at Room Temp Vortex Place on ice
Axiom Frag Diluent Place on ice Vortex and spin Place on ice
Axiom Frag Enzyme Keep at -20 °C Just before use, flick tube 3X, Keep in -20 °C cooler until
spin, and place in -20 °C ready to use.
portable cooler
Axiom Frag Rxn Stop Room Temp Vortex Keep at Room Temp
Precip Soln 2 Thaw at Room Temp Vortex and spin Place on ice
Notes:
*Temp Out of Module: temperature reagent is held at immediately after removal from module
4. Optional: Remove samples for quantifying amplification yield by the PicoGreen Assay.
A. Carefully remove the seal from the Amplification plate and discard the seal.
B. Transfer 4 µL samples from each well to a Bio-Rad Hard Shell 96-well plate, HSP-9631.
C. Quantitate each sample (e.g., using the Quant-iT ™ PicoGreen® dsDNA Kit).
D. Reseal the Amplification plate.
5. Transfer the Amplification plate from the 65 °C oven to the 37 °C oven and incubate for 45 minutes.
6. Set the plate centrifuge to room temperature.
TIP: Keep a labeled balance plate of equal weight ready to minimize any time delay
before spinning the Fragmentation plate during later steps.
Add the reagents from Table 4.13 to the Frg MM tube in the order shown, using appropriate single
channel and serological pipettes.
Just before the end of the 45 minute 37 °C incubation, flick the Axiom Frag Enzyme tube 2 to 3 times,
and spin
Add the Axiom Frag Enzyme to the Fragmentation Master Mix at the end of the 45 minute 37 °C
incubation.
NOTE: Leave the Axiom Frag Enzyme at –20 °C until ready to use.
IMPORTANT: Work quickly to perform this set of steps to minimize the time that the
Fragmentation plate is out of the 37 °C oven.
1. Carefully remove the Amplification plate from the 37 °C oven and place on the bench top at room
temperature.
Do not place the Amplification plate on ice.
2. Carefully remove the seal from the Amplification plate and discard the seal.
120 Axiom™ Genotyping Assay User Manual
3. Pipetting directly into the liquid of each well, use a P200 12 channel pipette to add 57 µL of
Fragmentation Master Mix to each reaction.
Change tips after each addition.
NOTE: After adding the Fragmentation Master Mix to the plate, the plate is now known as
the Fragmentation plate.
IMPORTANT: Keep your timer in a safe place. It is helpful to note down the actual time
when the incubation began in case the timer stops accidentally.
CAUTION: Be watchful for the end of the thirty minute incubation period.
Fragmentation is an exact 30 minute incubation step. Longer and shorter incubation
times may lead to poor performance of the assay.
Prepare the Stop solution a few minutes before the end of the 30 minute incubation period, as
described in 4: Aliquot the Stop Solution to the Fragmentation Plate, below.
NOTE: Use a 5 or 10 mL serological pipette to pipette Axiom Precip Soln 1. The bottle
has a narrow opening and a 25 mL serological pipette will not fit through the mouth
of the bottle.
TIP: It is recommended to place the Precip MM tube in the chilled 50 mL metal chamber
and put the chamber on ice.
NOTE: After adding the Precipitation Master Mix, the plate is now known as the
Precipitation plate.
TIP: It is recommended to designate a shelf in a -20 C freezer where the plates can be left
undisturbed.
122 Axiom™ Genotyping Assay User Manual
CAUTION: Some of the steps in this stage should be performed under a fume hood.
Duration
Centrifuge and dry plates: 1 hour 15 minutes
Resuspension and hyb mix preparation: 25 min
Gel QC and OD: 45 min
total: 2.5 hr
Input Required
Precipitation plate from Stage 2 — Fragmentation and Precipitation on page 115.
Table 4.15 Equipment and consumables required for Stage 3 — Drying, Resuspension and QC
Quantity Item
1 each Pipettes:
Single channel P20
Multi-channel P20
Multi-channel P-200
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 123
Table 4.15 Equipment and consumables required for Stage 3 — Drying, Resuspension and QC
Quantity Item
1 Oven set at 37 °C
1 Fume Hood
1 Tube, Falcon 15 mL
1 10 mL Serological Pipette
1 Pipetaid
1 Shaker, either:
Titer Plate Shakers-4PL, 120V
Jitterbug
1 Vortexer
Reagents Required
Nuclease free water, ultrapure MB Grade (P/N 71786; for OD and Dilution 14 mL
Plate preparation)
CAUTION: During this step, handle the Precipitation plate gently to avoid disturbing the
pellets. Do not bump or bang the plate.
WARNING: We strongly recommend that you use the Eppendorf 5810R at 3200 xg
(4000 rpm/) with:
Rotor A-4-81
Plate carrier DL 050 (rubber bottom)
If not using the Eppendorf 5810R with recommended rotor and plate carrier, centrifuge
the samples at 3200 xg (or rcf) at 4 °C.
Do not use the 5810R with the A-4-62 rotor and WO-15 plate carrier (hard bottom). Use of
this rotor and plate carrier may result in cracked plates, loss of sample, unbalanced
centrifugation, damage to the instrument and possible physical injury.
NOTE: If you are processing two plates at the same time, as in the three plate/week
manual prep workflow, you can centrifuge both plates at the same time.
4. During the centrifugation time prepare the resuspension and hybridization reagents as shown in
Table 4.17:
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 125
Axiom Hyb Soln 1 Thaw at Room Temp Vortex and spin Place on ice
Axiom Resusp Buffer Warm to Room Temp Vortex Keep at Room Temp
(~ 1 hr)
Axiom Hyb Soln 2 Place on ice Vortex and spin Place on ice
Notes:
*Temp Out of Module: temperature reagent is held at immediately after removal from module
5. Following centrifugation, empty the liquid from the Precipitation plate as follows:
A. Carefully remove the seal from the Precipitation plate and discard the seal.
B. Invert the plate over a waste container and allow the liquid to drain.
C. While still inverted, gently press the plate on a pile of Kimwipes on a bench and leave it for 5 min.
6. Turn the plate top side up and place in an oven for 20 min at 37 °C to dry.
7. If you are proceeding directly to 3: Resuspension and Hybridization Master Mix Preparation on
page 126, you can prepare the Hybridization Master Mix at this time (Step 6 on page 126).
8. After 20 min remove the plate from the oven and either:
Proceed directly to 3: Resuspension and Hybridization Master Mix Preparation on page 126, even
if some droplets of liquid remain. Leave the Precipitation plate at room temperature.
Seal if not proceeding immediately to the next set of steps.
Tightly seal the plate and store at –20 °C.
3. If performing the recommended QC checks, label solution basins as indicated in the table below:
i
NOTE: If a plate was stored at –20 °C after drying the pellets, it is recommended to allow the
plate to sit at room temperature for 1.5 hour before carrying out resuspension.
NOTE: Make sure the Axiom Resusp Buffer has equilibrated to room temperature before
adding to dry pellets in Step 3, below.
NOTE: If you are processing two plates at the same time, as in the three plate/week
manual prep workflow, you can add resuspension buffer to both plates at the same time
and then place them both in the shaker.
2. If the Precipitation plate has a seal on it, carefully remove the seal from the Precipitation plate and
discard the seal.
3. Using a P200 12 channel pipette, transfer 35 µL Axiom Resusp Buffer to each well of the
Precipitation plate with a dry pellet. Avoid touching pellets with tip.
Change pipette tips after each addition.
NOTE: After adding Resuspension buffer, the plate is known as the Resuspension plate.
CAUTION: It is recommended to perform the rest of the steps in this stage under a fume
hood.
6. While the Resuspension plate is shaking, prepare the Hybridization Master Mix in the Hyb MM 15
mL tube.
A. Keep the Hyb MM tube on ice.
B. Add the reagents in Table 4.18 to the Hyb MM tube in the order shown, using serological and
single-channel pipettes as needed.
9. Label a Bio-Rad Hard Shell 96-well plate, HSP-9631 as Hyb Ready [Sample ID] and keep covered
on ice.
When using the ABI 9700 or ABI 2720, you should label a Bio-Rad Hard-Shell Full-Height 96-
Well Semi-Skirted PCR Plate (P/N HSS 9601) as Hyb Ready [Sample ID] and keep covered on
ice.
10. Set a P200 12-channel pipette to 45 µL (this is slightly higher than the volume of sample in each well).
11. Using the P200 pipette, transfer the entire contents of each well of the Resuspension plate to the
labeled Hyb Ready plate on ice.
Change pipette tips after each transfer.
12. Pour the Hyb Master Mix to the solution basin labelled Hyb MM placed on ice.
13. Using a P200 12-channel pipette, add 80 µL of the Hyb Master Mix to each well of the Hyb Ready
plate.
Change tips after each addition.
14. Seal, vortex twice, and spin.
15. Keep the Hyb Ready plate on ice while preparing the dilutions for the QC steps, as described in the
next section. We recommend placing the Hyb Ready plate on a 96-well metal chamber sitting on ice
to stabilize it.
2 each Bio-Rad Hard Shell 96-well plate, HSP-9631 or any 96-well PCR plate for making the dilutions:
Label one plate as QC Diln
NOTE: Use appropriate pipettes to transfer samples. Change tips while transferring samples
from the Hyb Ready plate and the QC Dilution plate to avoid cross-contamination.
5. Freeze or Proceed
At this point you can:
Proceed to Stage 4 — Denaturation and Hybridization, below; or
Store the Hyb Ready samples at –20 °C.
Duration
Hands-on: 45 minutes including denaturation time
in GeneTitan MC: 23.5 to 24 hours Hyb Time
IMPORTANT: Always use the heated lid option when programming protocols.
The thermocycler needs to be programmed with the “Axiom Denature” protocol (see Thermal Cycler
Recommendations on page 97).
GeneTitan MC 1
Pipetaid 1
* The metal chamber coming out of a 48 °C oven is warm to the touch. Gloves and mitts can be used if
it feels too hot.
Axiom Genome-Wide ASI 1 Array (96 arrays) on protective base P/N 901640 1
130 Axiom™ Genotyping Assay User Manual
Axiom™ myDesign™ Genotyping Array Plates, 1x96 format one 96- P/N 000780** one 96-array plate
array plate of one array type of one array type
Axiom™ myDesign™ Genotyping Array Plates, 2x48 format one 96- P/N 000786** one 96-array plate
array plate of two array types of one array type
Axiom™ myDesign™ Genotyping Array Plates, 4x24 format one 96- P/N 000787** one 96-array plate
array plate of four array type of one array type
**The Consumables for the GeneTitan MC instrument are packaged separately from the Axiom myDesign™
Genotyping Array Plates. The consumables are available in the GeneTitan Consumable kit (P/N 901606)
WARNING: Do not remove the array plate from the protective base or touch the
surface of any arrays.
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 131
C. Leave the array plate in the pouch, unopened but placed on the bench for a minimum of 25 minutes
before opening and loading on the GeneTitan MC to allow the plate to come to room temperature.
D. At the end of the array warm up time, open the pouch and scan the array plate barcode into the
Batch Registration file (see Stage 1 — Create and Upload Batch Registration File on page 157).
3. Make sure the thermocycler is powered on and the Axiom Denature program with the heated lid
option has been selected.
4. Open the lid of the thermal cycler and place the sealed Hyb Ready plate on the thermal cycler.
5. Close the lid.
6. Start the Axiom Denature program, described on Thermal Cycler Recommendations on page 97).
7. While the program is running:
A. Prepare the reagents from Module 3 as described in Table 4.22:
Axiom Wash Buffer A Room Temp Invert 2-3X for mixing before filling GT bottle
Axiom Wash Buffer B Room Temp Invert 2-3X for mixing before filling GT bottle
Notes:
*Temp Out of Module: temperature the reagent is held at immediately after removal from
module
N/A: not applicable in this case
CAUTION: It is recommended to perform the next set of steps under a fume hood.
1. After the Axiom Denature program has completed, remove the Hyb Ready plate from the
thermocycler and place into a 96-well metal chamber that has been pre-warmed in an oven at 48 °C.
2. Move the metal chamber containing the denatured Hyb Ready plate to a fume hood.
3. Remove Microamp seal from Hyb Ready plate and discard.
4. Remove the Hyb Tray (from Axiom Array Plate kit) from packaging.
5. Label the Hyb Tray. See the note below and Figure 4.6 on page 132 for more information.
IMPORTANT: It is critical that you write only on the proper location of the proper edge
of the Hyb tray. Do NOT write on any other side, as this can interfere with sensors inside
of the GeneTitan MC Instrument and result in experiment failure. To ensure proper
placement of lids onto stain trays, and trays onto the GeneTitan MC Instrument, you can
also mark the notched corner of the trays and lids.
You may label the Hyb Tray on the front part of the short side of the tray, next to the notch at the
left, as shown in Figure 4.6. The proper section for labeling is closest to the notched corner,
corresponding to the A1 and B1 wells.
132 Axiom™ Genotyping Assay User Manual
Writing on the wrong side of the Hyb tray, or on the wrong part of the long side, may interfere with
the operation of sensors in the GeneTitan MC.
6. Place the Hyb Tray under the fume hood.
7. Using a P200 12 channel pipette, set at 105 µL, slowly transfer the denatured samples from the Hyb
Ready plate into the Hyb tray. Dispense to the first stop to avoid creating bubbles.
Change pipette tips after each transfer; discard the tip even if it shows some volume left.
There is no need to spread the sample around the bottom of the Hyb tray wells. Sample distribution
across the well will occur when the array plate is stacked together with the Hyb tray.
8. Load the array plate and Hyb tray into GeneTitan MC (see Load an Axiom Array Plates and Hyb Tray
Onto the GeneTitan MC on page 163).
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 133
IMPORTANT: The array plate must be loaded on the left side on its protective blue base,
as shown in the figure below. The clear plastic cover on top of the array plate SHOULD
NOT be loaded in the GeneTitan MC.
Load the Hyb tray on the right side without any covering. The hyb tray should not have
any bubbles.
IMPORTANT: After GeneTitan MC has stacked the array plate and hyb tray, the
instrument will extend the drawer. Manually check the stacking by gently pressing the six
latching points to confirm that the two parts are clamped properly, and check underneath
the arrays to make sure there are no bubbles. If bubbles are found, gently tap the plate
on top and the bubbles should disappear. Do NOT tip/tilt the array plate/hyb tray
sandwich while inspecting the bottom for bubbles. See Step 3 on page 166 for detailed
instructions.
Hybridization will continue on the GeneTitan for 23.5-24 hours before you can load the Ligation/
Staining/Stabilization reagent trays into the GeneTitan.
You must wait until the hybridization step on the GeneTitan is approximately 1.5 hours from completion
(22 hours after the start of hybridization) to begin Stage 5 — Manually Preparing Ligation, Staining, and
Stabilization Reagent Trays for the GeneTitan MC Instrument, below.
Long delays between sample denaturation and loading into the GeneTitan for hybridization should be
avoided. However, if denaturation has begun and the GeneTitan is found not to be ready for hybridization,
then:
If the Hyb Ready samples have not been transferred to the Hyb tray (still in the Hyb Ready plate),
the Hyb Ready plate should be held at 48 °C in the thermocycler until when the GeneTitan is ready,
at which point you should begin at Step 1 of 3: Prepare Hybridization Tray and Load into GeneTitan
MC on page 131.
If the samples have already been transferred to the hyb tray, the hyb tray should be sealed with plate
sealing film and placed in an oven at 48 °C until the GeneTitan is ready. Be sure to remove the plate
sealing film before loading into the GeneTitan.
134 Axiom™ Genotyping Assay User Manual
IMPORTANT: The reagent trays prepared in this step, Stage 5 — Manually Preparing Ligation,
Staining, and Stabilization Reagent Trays for the GeneTitan MC Instrument are for the
continued processing of an Axiom Array Plate that
– has completed the hybridization stage.
– is ready for transfer to the fluidics area.
The reagent plates for the fluidics stage on the GeneTitan MC Instrument should not be
prepared in advance. Do not prepare these plates if there is no array plate ready for the
fluidics stage. Once prepared, these plates must be loaded onto the instrument as soon as
possible and should not be stored.
Table 4.23 Reagent trays required for the Axiom assay on the GeneTitan MC
Type of Tray Number of Trays Tray Designation Master Mix/Reagent
Table 4.24 Equipment Required for Stage 5 — Manually Preparing Ligation, Staining, and Stabilization Reagent Trays
for the GeneTitan MC Instrument
Equipment Quantity
GeneTitan MC 1
Microcentrifuge 1
Pipetaid 1
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 135
Table 4.24 Equipment Required for Stage 5 — Manually Preparing Ligation, Staining, and Stabilization Reagent Trays
for the GeneTitan MC Instrument
Equipment Quantity
P1000
Vortexer 1
Table 4.25 Consumables Required for Stage 5 — Manually Preparing Ligation, Staining, and Stabilization Reagent
Trays for the GeneTitan MC Instrument
Consumable Vendor and Quantity
Part Number
Pipette, serological
5 x 1/10 mL (VWR P/N 53283-706) 1
10 x 1/10 mL (VWR P/N 53283-708) 2
50 mL Falcon tube 1
Reagents Required
Table 4.26 Axiom Reagents required for Stain and Ligation Stage
Module Reagent
* These solutions are light sensitive. Keep tubes out of direct light for a prolonged period of time.
136 Axiom™ Genotyping Assay User Manual
Table 4.26 Axiom Reagents required for Stain and Ligation Stage
Module Reagent
Axiom Wash A
Axiom Water
* These solutions are light sensitive. Keep tubes out of direct light for a prolonged period of time.
Axiom Ligate Buffer Thaw at Room Temp 1.Place on bench top at room temp for 30 min Place on ice
2.Examine for precipitate
3.Vortex twice
4.Examine for precipitate.
If any:
Warm bottle with your hands and vortex again
Axiom Ligate Enzyme Keep at –20 °C until Just before use: Place in –20 °C portable
ready to use 1.Flick 2 to 3 times to mix cooler
2.Spin.
3.Place in –20 °C portable cooler until use.
Axiom Ligate Soln 1 Thaw at Room Temp Vortex and Spin Place on Ice
Axiom Probe Mix 1 Thaw at Room Temp Vortex and Spin Place on Ice
Axiom Stain Buffer Thaw at Room Temp Vortex and Spin Place on Ice
Axiom Stabilize Soln Thaw at Room Temp Vortex and Spin Place on Ice
Notes:
Temp Out of Module*: temperature the reagent is held at immediately after removal from module
N/A: not applicable in this case
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 137
NOTE: The presence of some precipitate in Axiom Ligate Buffer is OK and will not adversely
impact assay performance. Follow the instructions above to resuspend any precipitate before
use.
Axiom Ligate Soln 2 Thaw at Room Vortex and Spin Store at Room Temp.
Temp (do not
place on ice!)
Axiom Probe Mix 2# Place on Ice Flick 2 to 3 times to mix, then spin Place on ice
Axiom Wash A Leave on bench 1.Vortex twice Place on bench top at room temp
2.Place on Bench for 30 min.
3.Look for precipitate.
4.Vortex again if necessary.
Axiom Stain 1-A# Place on ice Flick 2 to 3 times to mix, then spin Place on ice
Axiom Stain 1-B# Place on ice Flick 2 to 3 times to mix, then spin Place on ice
Axiom Stain 2-A# Place on ice Flick 2 to 3 times to mix, then spin Place on ice
Axiom Stain 2-B# Place on ice Flick 2 to 3 times to mix, then spin Place on ice
Axiom Hold Buffer# Room Temp Vortex Store at Room Temp away from light
Notes:
# These solutions are light sensitive. Keep tubes out of direct light for a prolonged period of time.
* Temp Out of Module: temperature reagent is held at immediately after removal from module
N/A: not applicable in this case
NOTE: Occasionally, crystals are observed in Axiom Wash A and Axiom Stabilize Diluent upon
removal from 2-8 °C storage. Before using these solutions, the crystals should be dissolved by
warming the solutions to room temperature and then vortexing.
138 Axiom™ Genotyping Assay User Manual
Table 4.29 Labeling master mix tubes for stain, ligation, and stabilization reagents
Conical Tube Number of Tubes Tube Designation Contents Place Tube:
NOTE: Use a 5mL or 10 mL serological pipette to transfer Axiom Wash A, Axiom Water, and
Axiom Ligate Buffer. These bottles have narrow openings and a 25 mL serological pipette will
not fit.
2. Mark the side of each solution basin with one of the designations shown in Table 4.30.
Table 4.30 Labeling master mix tubes for stain, ligation, and stabilization reagents
Basin Designation Contents
IMPORTANT: It is critical that you write only on the proper side of the front edge of Stain
Trays. The front edge of the tray is the short side with the lettering A through H. Do NOT
write on any other side, as this can interfere with sensors inside of the GeneTitan MC
Instrument and result in experiment failure. To ensure proper placement of lids onto stain
trays, and trays onto the GeneTitan MC Instrument, you can also mark the notched corner
of the trays and lids.
You may label the Stain trays on the left side of the front of the tray as shown in Figure 4.3. The
correct side is closest to the notched corner, corresponding to the A1 through C1 wells.
IMPORTANT: Always aliquot reagents to the bottom of the tray. Avoid touching the sides or
the top of the wells with the pipette tips. Droplets close to or on the top of the well dividers
may cause the lid to stick to the tray during GeneTitan processing.
For all trays, pipette into trays on the bench top. If the trays are not being used immediately, protect them
from light by covering with foil or placing in a cabinet.
IMPORTANT: Remember to deionize the stain trays and the covers before preparing the stain
master-mixes
When aliquoting ligation, staining, and stabilization reagents to the trays, it is not necessary to spread the
reagent to each corner of the well. The reagent will spread evenly when the array plate is inserted into the
reagent tray during processing with GeneTitan MC.
4. Place covers on the S1 trays. Orient cover correctly on the tray with the notched corners
together (Figure 4.9).
IMPORTANT: Leaving liquid on the top of the dividers may cause excessive evaporation or
may form a seal that will restrict the removal of the GeneTitan tray cover.
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 143
Notched corner of
Stain Tray and Lid
5. Protect the trays from light if not immediately loading onto the GeneTitan MC.
Notched corner of
Stain Tray and Lid
5. Protect the tray from light if not immediately loading onto the GeneTitan MC.
Notched corner of
Stain Tray and Lid
5. Protect the tray from light if not immediately loading onto the GeneTitan MC.
CAUTION: Do not remove the Scan Tray from its protective black base until loading onto
the GeneTitan MC instrument. To avoid scratching, do not touch the bottom of the tray
with pipette tips. Dispense hold buffer to the first stop only.
4. Prepare the barcoded Scan tray cover (PN 202757) that came with the scan tray by completing the
deionization procedure described in Deionization Procedure for GeneTitan Trays and Covers on
page 241. Place the cover as shown in Figure 4.13 on page 146 to prevent dust or static from
accumulating on the bottom of the cover.
IMPORTANT: If your scan tray came with a cover that does not match the picture of the scan
tray cover or if your scan tray cover does not have a barcode, then please contact your Field
Application Specialist for a replacement scan tray cover. All tray covers must have a machine
readable barcode.
146 Axiom™ Genotyping Assay User Manual
Figure 4.12 Scan tray with the clear cover and protective base
Figure 4.13 Loading the Scan Tray with Axiom Hold Buffer
Leave the Scan Tray in its protective black base while loading with Axiom Hold Buffer.
5. Use a 12-channel P200 pipette with new pipette tips to aliquot 150 µL to each well of a Scan tray —
dispense to the first stop and avoid touching the bottom of the tray.
You do not need to change pipette tips between additions of the Hold buffer.
6. If droplets of liquid splashed onto the well dividers, place a Kimwipe on top of the tray to blot and
remove.
Chapter 4 | Axiom Genotyping Assay: Manual Target Preparation 147
7. Cover the tray by orienting the notched corner of the scan tray cover over the notched edge of the tray
and the flat side of the cover against the scan tray and leave on the bench top (no need to protect from
light (Figure 4.13)).
CAUTION: Do not remove the Scan Tray from its protective black base until loading onto
the GeneTitan MC instrument. To avoid scratching, do not touch the bottom of the tray
with pipette tips. Dispense hold buffer to the first stop only.
See Stage 3 — Ligate, Wash, Stain and Scan on page 172 for instructions on loading the reagent trays.
148 Axiom™ Genotyping Assay User Manual
See Chapter 3, Axiom™ Genotyping Assay: Target Preparation with Biomek FXP Target Prep
Instrument on page 15
Manual target prep, performed on the lab bench without advanced automation
IMPORTANT: When running a multi-plate workflow, you must pay careful attention to the
software prompts that tell you which side of the drawer to place or remove a plate/tray.
TIP: Mark the notched corner of each plate, cover and tray with permanent marker to help
ensure proper alignment and loading onto the GeneTitan MC.
CAUTION: Take care not to damage the consumables or bend the blue cover posts or scan
tray posts.
NOTE: The instrument control software will display a warning if it detects a problem during
the fluid dispense operations. The filters in the GeneTitan Wash A, Wash B and DI Water
bottles should be replaced if the software displays such a warning. Refer to Appendix F,
GeneTitan® MC Instrument Care on page 247 for the message displayed to the user and the
procedure for replacing the filters.
150 Axiom™ Genotyping Assay User Manual
Figure 5.1 Proper alignment and loading of plates, covers and trays in the GeneTitan MC.
Tip
Mark the notched corner of each plate,
cover and tray with permanent marker to
help ensure proper alignment and loading.
Figure 5.2 Array Plate with protective blue base and the Hyb Tray aligned and properly loaded into drawer 6.
IMPORTANT: When you install the consumables, ensure that the fingers are retracted. Do
not lay the consumables on top of the drawer fingers - this indicates that the instrument
is not functioning correctly. Please notify your Field Service Engineer if the fingers do not
retract automatically. You should place the trays into the instrument drawers when a
drawer is fully extended by the instrument. The fingers are retracted when the drawer is
open and are extended when the drawer is closed in order to restrain the consumable.
IMPORTANT: Always place the flat side of the cover against the Stain Tray.
Correct placement of cover on Stain Tray. Incorrect placement of cover on Stain Tray.
152 Axiom™ Genotyping Assay User Manual
IMPORTANT: It is critical that you write only on the proper locations of the proper sides of
Hyb and Stain Trays. Do NOT write in any other location, as this can interfere with sensors
inside the GeneTitan MC Instrument and result in experiment failure. To ensure proper
placement of lids onto stain trays, and trays onto the GeneTitan MC Instrument, you can also
mark the notched corner of the trays and lids.
Proper labeling for hyb trays and reagent trays is described in:
Labeling for Hyb Trays, below
Labeling for Stain Trays on page 153
CAUTION: Writing on the wrong side of the Hyb tray, or on the wrong part of the long side,
may interfere with the operation of sensors in the GeneTitan MC.
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 153
GeneTitan MC Lamp
The GeneTitan MC uses a xenon arc lamp system that is warranted for 500 hours to provide illumination
for imaging the array at two wavelengths. The xenon lamp has a limited lifetime and needs to be replaced
at regular intervals.
The GeneTitan Instrument Control software provides a timer that indicates the remaining useful life of
the bulb and notifies you when it requires replacement. It is important to adhere to the warnings specified
in the GeneTitan MC user guide.
Refer to the GeneTitan MC Instrument User Guide, P/N 08-0308, or Appendix F, GeneTitan® MC
Instrument Care on page 249 of this user guide for details on replacing the lamp.
Refer to the GeneTitan MC Instrument User Guide, P/N 08-0308, for the Lambda LS and Smart controller
system. The Lamp and the controller should NEVER be switched ON or OFF manually. The GeneTitan
MC instrument control software manages the lamp activity and will switch the lamp ON and OFF as
154 Axiom™ Genotyping Assay User Manual
required. It takes 10 minutes to warm-up the lamp. In idle mode the lamp will remain ON for 2 hours
before it is automatically switched OFF and if there are no more plates being transferred from the fluidics
to the imaging station. This is by design and intended behavior. Please do not try to save the lamp life by
turning OFF the switch on the lamp.
NOTE: The power switch on the shutter box should be ON at all times. The OPEN/CLOSE
switch on the shutter box should be at AUTO position at all times.
Hyb-Wash-Scan
This setup option enables you to hybridize, wash-ligate-stain-fix, and scan an array plate on the
GeneTitan MC.
IMPORTANT: When running a multi-plate workflow, you must pay careful attention to the
software prompts that tell you which side of the drawer to place or remove a plate/tray.
Hyb: the array plate is moved to the hybridization oven inside the instrument. Each denatured sample
in the Hyb Tray is hybridized to an array on the Array Plate.
Duration for 96 samples = 23.5 hr
NOTE: The instrument control software will display a warning if it detects a problem during
the fluid dispense operations. The filters in the GeneTitan Wash A, Wash B and DI Water
bottles should be replaced if the software displays such a warning. Refer to Appendix F,
GeneTitan® MC Instrument Care on page 247 for the message displayed to the user and the
procedure for replacing the filters
Scan: The array plate is moved to the imaging device in the GeneTitan MC and each array is scanned.
Duration for 96 samples = ~ 7.5 hr
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 155
Hyb-Wash
If this setup option is selected, array plate processing will stop after the array has gone through fluidics
processing. Use this option if an array plate cannot be scanned on the same GeneTitan MC as the one used
for hybridization and fluidics processing.
If the array plate cannot be scanned immediately after the Hyb-Wash process is complete:
1. Wrap the array plate (in the scan tray with black protective base) in aluminum foil to protect from
light.
No lid is required. Do not invert the plate stack. If inverted, the Hold Buffer will spill out of the tray.
To prevent liquid spillage, try to keep the plate level when handling the plates. Do not touch the
bottom optical surface of the scan tray.
2. Store at 4 °C.
3. Scan the array plate within 3 days or less.
Wash-Scan
Use this option if:
You wish to bypass the Hybridization step and perform only the Wash/Stain and Scan steps.
Wash-Scan-Resume
Use this option if:
It was necessary to hybridize the array plate in an oven separate from the GeneTitan MC.
Fluidics processing has been interrupted (e.g., a power failure occurs at your facility).
Scan
Use this option:
To rescan an entire array plate or specific arrays on a plate that failed to scan for reasons such as
bubbles or gridding failure.
If you have hybridized and performed the fluidics processes off the GeneTitan MC.
Unload Plates
Use this option to unload plates and trays from the instrument when:
Array plate processing is complete.
Array plate processing has been aborted.
156 Axiom™ Genotyping Assay User Manual
Aborting a Process
If necessary, you can abort the processing of one or more array plates. Instructions and an example are
shown below in Figure 5.7.
If the instrument aborts a process, you can retrieve the array plate and related consumables as described
in Figure 5.7. An instrument-initiated abort may occur:
Due to improper placement of plates
If the UPS detects a long power interruption, draining the UPS to 75% power.
5A.
5B.
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 157
IMPORTANT: It is very important to create and upload a batch registration file with your
sample information prior to starting Stage 2 — Hybridization on page 158.
Stage 2 — Hybridization
Reagents Required
Reagents Required
Axiom Water
An Axiom Genome-Wide CEU 1 array plate or an Axiom Genome-Wide and custom myDesign™
Array Plate is required for this step. Prior to inserting this plate into the GeneTitan for hybridization,
the array plate should be brought to room temperature as described on Step 2 on page 130.
A hybridization tray containing denatured samples (from Step 2 on page 88 in Chapter 3 or Step 8 on
page 132 in Chapter 4) is also required for this step. The denatured samples should be transferred to
the hyb tray only after the GeneTitan is ready for loading the hyb tray in the "Load an Array Plate and
Hyb Tray Onto the GeneTitan MC Instrument" step on page 121.
NOTE: The instrument control software will display a warning if it detects a problem during
the fluid dispense operations. The filters in the GeneTitan Wash A, Wash B and DI Water
bottles should be replaced if the software displays such a warning. Refer to Appendix F,
GeneTitan® MC Instrument Care on page 247 for the message displayed to the user and the
procedure for replacing the filters
IMPORTANT: Please do not close the scanner application by right-clicking on it and choosing
the "Close" option. This will cause the scanner application to exit abnormally and cause
undue delay in processing the next plate. The correct way to close the application is described
in Shutting Down the GeneTitan MC on page 182.
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 159
System ready
160 Axiom™ Genotyping Assay User Manual
Figure 5.10 System setup tab and the information displayed in this pane.
Barcode: Scan or manually enter the Axiom Array Plates barcode and click Next.
The first six characters of the barcode identify the type of plate being loaded, the protocol
GeneTitan MC will use to process the plate, and the imaging device parameters required for this
type of plate.
550094 <barcode> = Affymetrix 96-array plate
IMPORTANT:
Always ensure that the GeneTitan bottles containing Wash A and Rinse are above
the 50% mark when setting up the system to process an Axiom HT array plate. All
600 mL of the Wash buffer B from the Axiom reagent kit should be emptied into the
GeneTitan Wash B bottle when setting up the system to process a plate. This ensures
that the GeneTitan Wash B bottle is filled to more than the requisite 35% of Wash B
bottle volume. Also, do not overfill the bottles. Fill Wash Buffer B and Water bottles
to the 1 L mark only. Wash A keep at 2 L. We strongly recommend refilling these
bottles every time you are prompted to do so.
If the volume in any of these bottles becomes too low during a run, a message is
displayed (see Chapter 9, Troubleshooting on page 217). However, even if you fill
the bottle at this time, the instrument may not be able to successfully complete the
step that was in progress.
Wash B — if you intend to load two array plates on the same day, fill the Wash B
bottle to the 1L mark (use both bottles from the Axiom Reagent Kit).
Workflow step
Load an Axiom Array Plates and Hyb Tray Onto the GeneTitan MC
The System Layout pane indicates the position of the various trays in each drawer during a GeneTitan
MC run at maximum throughput. This pane does not change as plates are loaded or removed.
Drawer Numbers
1
2
3
4
5
6
To load an Axiom Array Plate and Hyb Tray onto GeneTitan MC:
1. When drawer 6 opens, load the Array Plate and Hyb Tray as follows:
A. Examine the wells of the Hyb Tray for bubbles; puncture any bubbles with a pipette tip.
IMPORTANT: Removing bubbles at this step greatly reduces the chance of bubbles
under the arrays when the Hyb Tray and the Axiom Array Plates are clamped. Bubbles
under an array can result in black spots on the array image.
B. Load the Hyb Tray without the cover on the right side of the drawer (Figure 5.15 on page 164).
The array plate must be loaded on its protective blue base, as shown in Figure 5.15 on page 164 below.
The clear plastic cover on top of the array plate SHOULD NOT be loaded in the GeneTitan MC. See
Figure 5.1 on page 150 for more details on the correct way of loading the array plate.
C. Remove the Array Plate and protective blue base from its package.
To avoid dust or other damage, leave the Array Plate packaged until ready to load onto the
GeneTitan MC (Figure 5.14).
Figure 5.15 Array Plate with protective blue base and the Hyb Tray properly loaded into drawer 6.
D. Load the Array Plate with the protective blue base on the left side of the drawer (Figure 5.15).
CAUTION: The notched corner of each plate, cover and tray must be aligned. When
loading onto the GeneTitan MC, the notched edge plates, covers and trays must be
aligned as indicated by the Tray Alignment guide in the drawer (Figure 5.15 on
page 164).
The error message shown in may be displayed. Plate barcodes must face the internal
barcode reader (back of the drawer). Improper tray positioning can cause the
GeneTitan MC to crash, and can result in substantial damage to the instrument and loss
of samples.
When you load the array plate left side of the drawer: The internal bar code reader reads the barcode of
the array plate and compares it with the barcode and the plate type specified in the Barcode field and Plate
Type field on the Setup page. If the information is correct, the application allows you to proceed to the
next step. If the instrument is unable to read the barcode, it will push the tray out and will prompt
(Figure 5.16) you to load the correct plate with the proper orientation into the instrument (Figure 5.15).
Click OK to retry and check the loading of the array plate; or
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 165
Click Skip if the instrument has problems reading the barcode and after verifying that the trays have
been placed in the proper orientation.
IMPORTANT: Do not install a 3 plate stack of trays. Confirm that you have removed
the clear plastic shipping cover as shown in Figure 5.1 on page 150.
166 Axiom™ Genotyping Assay User Manual
2. Click Next, then click OK to begin processing the samples (Figure 5.18).
The Array Plate is placed on top of the Hyb Tray and clamped (now referred to as the plate stack).
Figure 5.18 Click OK to start processing the first Array Plate and Hyb Tray
The System Status window is automatically selected and brought to the front of the computer monitor.
3. When drawer 6 opens and the prompt in Figure 5.20 on page 167 is displayed:
A. Remove the plate stack and gently press the two plates together at each clamping point.
Listen for a clicking sound which indicates that the plates are now clamped. No clicking sound
indicates the plates are already clamped (See Figure 5.19 for an example of a array plate
hybridization plate sandwich).
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 167
B. Inspect the bottom of the plate stack for bubbles under the arrays — do NOT invert the plates.
C. If bubbles are present, gently tap the plate until the bubbles move out from under the arrays —
do NOT unclamp the plate stack.
D. Return the plate stack to the drawer, and press the Confirmation button to proceed.
The message in Figure 5.21 may be displayed again if plate orientation is incorrect or if the Hyb
Tray barcode cannot be read. Click OK to proceed.
Figure 5.20 Location of camping points on the Array Plate and Hyb Tray
Notched Corners
Array plate
Hyb Tray
168 Axiom™ Genotyping Assay User Manual
Load a Second Axiom Array Plates and Hyb Tray Onto the GeneTitan MC
When You Can Load a Second Array Plate and Hyb Tray
Once processing begins, you have a specific period of time during which you can load another Axiom
Array Plates and Hyb Tray. This period of time is displayed above the Hyb Oven Status pane
(Figure 5.22). You cannot load another Hyb Tray before or after this period of time.
IMPORTANT: You must load the next Array Plate and Hyb Tray during the period of time
displayed above the Hyb Oven Status. You cannot load another Hyb Tray before or after this
period of time. You will have to wait until the current process is finished.
NOTE: While the first plate is in the oven, you can load another plate if the time spacing
requirement is met. This is to ensure that the second plate does not have to wait for system
resources in its workflow. The time spacing is roughly equal to the longer of the wash-stain
or scan time of the first plate.
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 169
Figure 5.22 Loading a second Hyb Tray and hybridization oven status information
Select the System Status tab to view Axiom Array Plates status in the WorkFlow window (Figure 5.24).
170 Axiom™ Genotyping Assay User Manual
Figure 5.24 Example of the WorkFlow window when two plates are loaded and are in the hybridization oven
Left and Right positions = the position of the Scan Tray in drawer 2 (left or right side of the drawer).
Table 5.2 Refilling buffer bottles and emptying the waste bottle
Status Window Prompt Action Required Receptacle – Reagent
Buffer bottles have been depressurized. ** Replenish the fluid in Wash Bottles A and Wash Bottle A – fill with Axiom Wash
Please refill buffer into the bottles. B, and the Rinse bottle. Buffer A up to 2 L.
Empty the waste bottle. Empty the Waste Bottle. Wash Bottle B – fill with Axiom Wash
Press the Confirmation button to continue. Buffer B to the 1 L mark.
Rinse – fill with Axiom Water to the 1 L
mark.
Do not overfill these bottles.
** Every time you are prompted to refill the buffer bottles, the system runs a fluidics check (duration ~ 1 min).
Table 5.4 Loading the array plate and Hyb Tray; barcode error messages
Status Window Prompt Action Required Reagent – Receptacle
Load Array Plate Tray on [Left/ Load the array plate with the blue base and the Hyb Tray in Hyb Tray loaded with
Right] side of Drawer. Load drawer 6. denatured samples.
Hyb Tray without cover on IMPORTANT: The blue base must remain in “left side HTA in”
[Left/Right] side of Drawer. even when empty.
IMPORTANT: The trays must be positioned. If the trays are
the correct ORIENTATION. The right side of the drawer should contain a hyb tray, if applicable, in the correct loaded improperly.
ORIENTATION. The bar code is missing
Details: or obscured
The consumable is either not the correct consumable, not loaded correctly, or its barcode is not readable.
Proceeding with an incorrect or incorrectly loaded consumable can result in a loss of consumables, loss of
samples and may require a field service engineer to service the instrument.
Refer to the System Setup Tab or the User Guide provided with the Assay or AGCC for instructions on
proper consumable placement.
Press the flashing blue confirmation button or...
Press OK, GeneTitan will verify the barcode and orientation.
Press Skip, GeneTitan will NOT verify the barcode and orientation. The barcode entered at registration will
be used.
on the bench top (no need to protect from light; Figure 5.25).
CAUTION: Do not remove the Scan Tray from its protective black base. Leave the Scan
Tray in the base until loaded onto the GeneTitan MC. When handling the Scan Tray, the
bottom glass surface of the tray should not be touched.
Figure 5.25 The Scan Tray with cover on the black base.
Figure 5.26 You must rotate and install the trays so that the barcode faces into the instrument.
Notch
(This faces out and left)
FRONT
(OF INSTRUMENT
FACING YOU)
Barcode
(This faces BACK TO
THE REAR of the instrument)
Turn the tray and cover combo so
that the barcode faces BACK AND
INTO the instrument and the notch
faces OUT AND TO THE LEFT.
Figure 5.27 The proper installation of the GeneTitan tray consumables (the image shows the Stain Tray and the Stain Tray
cover as an example)
Barcode faces
in and back.
FOR RESEARCH
USE ONLY
FOR RESEARCH
USE ONLY
NOTE: The instrument control software will display a warning if it detects a problem during
the fluid dispense operations. The filters in the GeneTitan Wash A, Wash B and DI Water
bottles should be replaced if the software displays such a warning. Refer to Appendix F,
GeneTitan® MC Instrument Care on page 247 for the message displayed to the user and the
procedure for replacing the filters
This prompt to continue into reagent load (Figure 5.28) occurs when the hyb is complete. “Estimated
Time Remaining” displayed under “Hybridization Oven Status” may display a time remaining of 0 to 30
minutes when the prompt occurs.
GeneTitan will allow reagent load to take place after either.
the estimated time counts down to zero or
the actual real world hyb time (as indicated by the computer clock) indicates the hyb is complete.
NOTE: The time estimate displayed on some systems may lag due to high CPU utilization.
GeneTitan allows the workflow to synchronize with the system clock to compensate for this
situation during the final half hour of the hyb time estimate. When this prompt to resume
reagent loading is displayed to the user there is no need to wait for the estimated time to
count down to zero.
Follow the prompts displayed to continue with staining, ligation, fixing and scanning.
1. Follow the prompts in the Status window.
A. Wash Bottles A and B, and the Rinse Bottle — refill as necessary (the system will prime itself
again); Waste bottle — empty if necessary.
Wash bottle A — 2 L. Wash Bottle B and Rinse Bottle — fill to 1 L mark only.
B. Empty the trash bin.
C. Remove consumable trays and plates as instructed, except for the blue base.
Leave the blue array plate base in drawer 6 even though the base is empty.
2. Load consumable trays and plates as follows:
A. Follow the prompts in the Status window (load sequence and prompts in Table 5.6).
B. Once loaded, examine each cover for droplets of liquid.
C. If any liquid is present, remove the tray, clean the cover and top of the tray with Kimwipes, and
reload the tray.
Chapter 5 | Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument 175
CAUTION:
Orient trays as indicated by the guide inside the drawer. Improper orientation may
cause the run to fail.
Remove the protective black base from the Scan Tray immediately prior to loading
Figure 5.29 on page 176).
Examine each cover for droplets of liquid after loading. Liquid on the cover can result in
capillary phenomenon. As a result, the tray may stick to the cover and be lifted out of
place inside the instrument.
Note: If the software is unable to verify the barcode on the scan tray and the scan tray cover, the
software will display the following error message
2 Scan Tray with cover — do not load the protective black base
(left side of drawer as indicated in Status window)
Figure 5.29 on page 176
IMPORTANT: When you load the plates, or trays, insert them under the tabs, or fingers, that
may protrude into the stage. Confirm that the tray is not resting on these fingers.
3. At the prompt shown in Figure 5.33, click Yes to load another Axiom Array Plates and Hyb Tray.
Figure 5.33 Prompt asking to load another plate. Right or left position determined by the position of Axiom Array Platess
already in the GeneTitan MC.
F. When drawer 6 opens, confirm that the plate stack is securely clamped, then press the
Confirmation button.
When processing resumes:
1. The plate stack which has finished hybridization is moved from the Hyb oven to drawer 1 temporarily
and then moved to the unclamp station after step 2 (it remains clamped).
2. The plate stack in drawer 6 is moved to the Hyb oven.
3. The plate is moved to the unclamped station.
4. The plate stack in the unclamp area is unclamped and moved into the fluidics area.
NOTE: At the end of a Hyb-Wash-Scan run, all plate and tray covers and the fixing tray cover
should be in the trash.
Figure 5.35 is an example of how the System Status Workflow window will appear when three Axiom
Array Platess are being processed.
180 Axiom™ Genotyping Assay User Manual
Figure 5.35 Example of the System Status window — three Axiom Array Platess are being processed.
CAUTION:
The Scan Control window must remain open while Axiom Array Platess are being scanned.
Closing this window will halt the scanning process. You can minimize this window if
necessary without creating any interference to the imaging.
Do not manually, or through the AGCC transfer utility, move any data associated with the
current plate that is being processed/scanned. Transferring data will dramatically slow
scanning and may cause the computer to freeze.
WARNING: Do not attempt to shut down the GeneTitan MC while array plates are being
processed.
NOTE: If the instrument is processing an array plate, the software will not allow you to shut
down the system.
6
Automated Target Preparation for Processing Eight Axiom
Array Plates Per Week
Using one Biomek FXP Target Prep Express (Biomek workstation) and one GeneTitan MC Instrument,
the Axiom™ assay (using the 96-array plate) can be run at a throughput of eight Axiom™ Array Plates per
five-day work week. This chapter includes tables that present the timing of the steps required to perform
this workflow per 5-day work week, eight hours per day.
IMPORTANT: Experienced users and careful timing are critical for the successful execution of
this workflow.
During the initial week of startup, all work is done on the Biomek FXP Target Prep Express. You will
process eight plates of genomic DNA samples. At the end of this week, you will have what are now
referred to as eight plates of hyb-ready target (target).
Subsequent weeks of the workflow involve the simultaneous processing of plates on the Biomek FXP
Target Prep Express and on the GeneTitan MC Instrument. Each week:
Eight plates of target from the previous week are denatured and transferred to the GeneTitan MC
Instrument for hybridization and array plate processing.
Eight new plates of target are prepared on the Biomek FXP Target Prep Express.
Overview of the 8-plate Workflow on the Biomek FXP Target Prep Express
Table 6.1 Overview of the Biomek FXP Target Prep Express workflow
Day Activities Plates
Table 6.2 Time required for target preparation on the Biomek FXP Target Prep Express
Steps on the Biomek FXP Target Prep Express Time Required
Amplification 30 min
Fragmentation 2 hr
Resuspension 45 min
IMPORTANT: Maintaining consistent timing during the set up of the GeneTitan is critical to
containing the user interventions of the eight plate workflow within an eight hour work day.
Once one process begins late, there is little opportunity to catch up until the end of the
workflow.
5 Load reagent plates for fluidics and imaging of plates loaded on day 4 G and H
The hybridization time for the Axiom assay on the GeneTitan MC Instrument is 23.5 to 24 hr (Table 6.4).
This provides a 30 min window during which you are prompted by the instrument control software to load
the reagents required for washing and staining. We recommend that you begin loading the reagent plates
onto the GeneTitan at the mid-point of this 30 min window. As such, the wash procedures will begin 24
hr after the start of hybridization. If catch-up is required in the framework of the 8-plate workflow, begin
loading reagents at the beginning of this 30 min window (i.e., immediately after prompted by the
software).
Chapter 6 | Automated Target Preparation for Processing Eight Axiom Array Plates Per Week 185
Table 6.4 Time required for array plate processing on the GeneTitan MC Instrument
Steps on the GeneTitan MC Instrument Time Required
IMPORTANT:
All amplifications should be set up on Day 1 to allow for a 22 to 24 hr amplification
incubation for each plate.
Begin thawing the amplification reagents, particularly the Axiom Amp Soln, 60 min prior to
the start of each reaction.
1
2
3
4
5
6
7
8
IMPORTANT:
Plates 1, 5 and 8 are fragmented and precipitated on Day 2 without freezing to preserve a
23 hr amplification incubation.
Store all plates not fragmented and precipitated on Day 2 at –20 °C following 23 hr of
amplification reaction incubation.
Precipitation is carried out at –20 °C overnight.
1 — Fragment/
Precipitate
s2
s3
s4
5 — Fragment/
Precipitate
s6
s7
8 — Fragment/
Precipitate
sX = Seal tightly and store at –20 °C.
IMPORTANT:
Amplified plates that are frozen must be thawed and thoroughly mixed by following the
procedure under Thawing Frozen Plates of Amplified DNA on page 185.
After being centrifuged and dried, plates 1, 5 and 8 are sealed and placed in a 4 °C
refrigerator until further processing later the same day.
Precipitation is carried out at –20 °C overnight.
Prior to resuspension and QC, plates 1, 5 and 8 must be brought to room temperature (place
on bench top for 30 min).
2 - RT
2 — Fragment/
Precipitate
1, 5, 8
Centrif/Dry
3 - RT
3 — Fragment/
Precipitate
1-RT 1-Resus 1-QC
5-RT 5-Resus 5-QC
8-RT 8-Resus 8-QC
RT = Bring plate to room temperature.
Centrif = centrifuge offline
Resus = resuspend
QC = fragmentation QC gel and OD quantitation
IMPORTANT:
Amplified plates that are frozen must be thawed and thoroughly mixed by following the
procedure under Thawing Frozen Plates of Amplified DNA on page 185.
Precipitation is carried out at –20 °C overnight.
After being centrifuged and dried, plates 2 and 3 are sealed and stored at –20 °C.
4 - RT
4 — Fragment/
Precipitate
2, 3
Centrif/Dry
6 - RT
6 — Fragment/
Precipitate
7 - RT
7 — Fragment/
Precipitate
RT = Bring plate to room temperature.
Centrif = centrifuge
IMPORTANT:
Plates 2 and 3 must be brought to room temperature for 90 min prior to resuspension.
After being centrifuged and dried, plates 4, 6 and 7 are sealed. Place plates 6 and 7 in a 4 °C
refrigerator until further processing later the same day. Plate 4 can be left on the bench top.
Prior to resuspension and QC, plates 6 and 7 must be brought to room temperature (place
on bench top for 30 min).
2 - RT
3 - RT
2-Resus 2-QC
4, 6, 7
Centrif/Dry
3-Resus 3-QC
4-Resus 4-QC
6-RT 6-Resus 6-QC
7-RT 7-Resus 7-QC
RT = Bring plate to room temperature.
Resus = Resuspension
QC = fragmentation QC gel and OD quantitation
IMPORTANT:
Plates 1 through 8 are referred to as A through H when denatured and loaded onto the
GeneTitan MC Instrument. Plates 1 through 8 can go onto the GeneTitan in any order.
All amplifications are set up on Day 1 to maintain a 22 to 24 hr amplification incubation for
each plate.
Begin thawing the amplification reagents, particularly the Axiom Amp Soln, 60 min prior to
the start of each reaction.
Chapter 6 | Automated Target Preparation for Processing Eight Axiom Array Plates Per Week 193
Den A Hyb A
1
2
3
4
5
6
7
8
Den B Hyb B
Den = denature
Den time period includes 15 min to transfer the denatured sample plate from the Biomek workstation to the GeneTitan.
Begin thawing the amplification reagents, particularly the Axiom Amp Soln, 60 min prior to the start of each reaction.
Prepare reagent plates for the GeneTitan MC Instrument (for plates A and B already on the GeneTitan).
Transfer the denatured samples and reagent plates to the GeneTitan MC Instrument.
Freeze amplified plates 2, 3, 4, 6, and 7 after each plate has incubated for 23 hr
fluidics, the plates move to the imaging area of the instrument. Load plates C and D for hybridization.
IMPORTANT:
Plates 1, 5 and 8 are fragmented and precipitated without freezing to preserve a 23 hr
amplification incubation.
All plates not fragmented and precipitated on Day 2 should be stored at –20 °C following
23 hr of amplification reaction incubation.
Precipitation is carried out at –20 °C overnight.
Transfer to GeneTitan
Load GT rgnt plates and begin fluidics A to fluidics GeneTitan MC Instrument 9:30 a.m.
processing for A C to hyb oven
Load C and begin hybridization
Fragment and precipitate 1 Biomek FXP Target Prep Express 9:30 a.m.
Freeze (–20 °C) 2 — 10:00 a.m.
Freeze (–20 °C) 3 — 10:30 a.m.
Freeze (–20 °C) 4 — 11:00 a.m.
Fragment and precipitate 5 Biomek FXP Target Prep Express 11:30 a.m.
Freeze (–20 °C) 6 — 12:30 p.m.
Freeze (–20 °C) 7 — 1:00 p.m.
Fragment and precipitate 8 Biomek FXP Target Prep Express 1:30 p.m.
Thaw reagent for GT rgnt plate preparation B — 3:30 p.m.
Concurrently: Denature D Biomek FXP Target Prep Express 4:00 p.m.
Denature D Reagents for B
Prepare GT rgnt plates for B
Transfer to GeneTitan
Load GT rgnt plates and begin fluidics B to fluidics GeneTitan MC Instrument 5:00 p.m.
processing for B D to hyb oven
Load D and begin hybridization
Denature and GT rgnt plate preparation time periods include 15 min to transfer the denatured plate and reagent plates from the
Biomek to the GeneTitan.
196 Axiom™ Genotyping Assay User Manual
Off-Deck Activities
Thaw plates 2 and 3.
Prepare reagent plates for the GeneTitan MC Instrument (for plates C and D already on the GeneTitan).
Transfer the denatured samples and reagent plates to the GeneTitan MC Instrument.
After fluidics, the plates will move to the imaging area of the instrument. Also load plates E and F for
hybridization.
Transfer to GeneTitan
Load GT rgnt plates and begin fluidics C to fluidics GeneTitan MC Instrument 9:30 a.m.
processing for C E to hyb oven
Load E and begin hybridization
Fragment and precipitate 2 Biomek FXP Target Prep Express 9:30 a.m.
Spin and dry 1, 5, 8 Plate centrifuge and oven 9:45 a.m.
Bring plate to room temperature (RT) 3 — 10:30 a.m.
Fragment and precipitate 3 Biomek FXP Target Prep Express 11:30 a.m.
Resuspension 1 Biomek FXP Target Prep Express, 1:30 p.m.
Off-deck QC 1 Plate spectrophotometer, e-gel system 2:15 p.m.
Resuspension 5 Biomek FXP Target Prep Express 2:15 p.m.
Off-deck QC 5 Plate spectrophotometer, e-gel system 3:00 p.m.
Resuspension 8 Biomek FXP Target Prep Express 3:00 p.m.
Thaw reagents for GT rgnt plate preparation F — 3:30 p.m.
Off-deck QC 8 Plate spectrophotometer, e-gel system 3:45 p.m.
Concurrently: Denature F Biomek FXP Target Prep Express 4:00 p.m.
Denature F Reagents for D
Prepare GT rgnt plates for D
Transfer to GeneTitan
Load GT rgnt plates and begin fluidics D to fluidics GeneTitan MC Instrument 5:00 p.m.
processing for D F to hyb oven
Load F and begin hybridization
198 Axiom™ Genotyping Assay User Manual
Off-Deck Activities
Bring plates 4, 6 and 7 to room temperature.
Prepare reagent plates for the GeneTitan MC Instrument (for plates E and F already on the GeneTitan).
Transfer the denatured samples and reagent plates to the GeneTitan MC Instrument.
fluidics, the plates move to the imaging area of the instrument. Load plates G and H for hybridization.
IMPORTANT:
Amplified plates that are frozen must be thawed and thoroughly mixed by following the
procedure under Thawing Frozen Plates of Amplified DNA on page 185.
Precipitation is carried out at –20 °C overnight.
After being centrifuged and dried, plates 2 and 3 are sealed and stored at –20 °C.
Transfer to GeneTitan
Load GT rgnt plates and begin fluidics E to fluidics GeneTitan MC Instrument 9:30 a.m.
processing for E G to hyb oven
Load G and begin hybridization
Fragment and precipitate 4 Biomek FXP Target Prep Express 9:30 a.m.
Spin and dry 2, 3 Plate centrifuge and oven 9:45 a.m.
Bring plate to room temperature (RT) 6 — 10:30 a.m.
Fragment and precipitate 6 Biomek FXP Target Prep Express 11:30 a.m.
Bring plate to room temperature (RT) 7 — 12:30 a.m.
Fragment and precipitate 7 Biomek FXP Target Prep Express 1:30 a.m.
Thaw reagents for GT rgnt plate preparation F — 3:30 p.m.
Concurrently: Denature H Biomek FXP Target Prep Express 4:00 p.m.
Denature H Reagents for F
Prepare GT rgnt plates for F
Transfer to GeneTitan
Load GT rgnt plates and begin fluidics F to fluidics GeneTitan MC Instrument 5:00 p.m.
processing for F H to hyb oven
Load H and begin hybridization
200 Axiom™ Genotyping Assay User Manual
Off-Deck Activities
Bring plates 2 and 3 to room temperature.
IMPORTANT:
Plates 2 and 3 must be brought to room temperature for 90 min prior to resuspension.
After being centrifuged and dried, plates 4, 6 and 7 are sealed. Place plates 6 and 7 in a 4 °C
refrigerator until further processing later the same day. Plate 4 can be left on the bench top.
Prior to resuspension and QC, plates 6 and 7 must be brought to room temperature (place
on bench top for 30 min).
IMPORTANT: Experienced users and careful timing are critical for the successful execution of
this workflow.
The two plate per week automated workflow is described in the following sections:
Overview of the 2-plate Workflow for Automated Target Preparation
Thawing Frozen Plates of Amplified DNA on page 204
Target Prep and Array Processing on page 204
Figure 7.1 Two plate per week automated target prep workflow
B
X
Notes
Begin Thawing required reagents for the process.
Begin warming Axiom array plate to room temperature
x Day 3 2:45 PM: Store Hyb Ready Plate B at –20 °C
Color Code
Amplification
Fragmentation and Precipitation
Centrifugation and Drying
Resuspension and Hybridization Mix Prep
QC
Sample Denature/load array plate and Hyb Plate in GeneTitan MC
GeneTitan MC reagent plates prep and loading
The two plates are referred to as plates A and B in the target prep and in the GeneTitan Array Processing.
In order to process two plates during a 40-hour week, the steps should be performed in the order and with
the timing described in this chapter.
204 Axiom™ Genotyping Assay User Manual
Table 7.1 Daily steps for Automated Target Prep workflow for two plates/week
Day Activities
4 Denature Plate B and load samples and Array Plate into GeneTitan MC
Prepare GeneTitan Reagent plates for Plate A and load into GeneTitan MC
5 Prepare GeneTitan Reagent plates for Plate B and load into GeneTitan MC
Table 7.2 Time required for target preparation on the Biomek FXP Target Prep Express
Steps on the Biomek FXP Target Prep Express Time Required
Amplification 30 min
Fragmentation 2 hr
Resuspension 45 min
NOTE: Genomic DNA sample for amplification should be prepared as described in Genomic
DNA Preparation and Requirements on page 9. Affymetrix recommends that you carry out
genomic DNA preparation in a dedicated pre-amplification room, or area, with dedicated
consumables such as pipettes, tips, vortexes, etc.
Chapter 7 | Automated Target Preparation for Processing Two Axiom Array Plates per Week 205
Figure 7.2 Two Plate/Week Automated Target Prep Workflow — Day 1 Activities
B Amp
Notes
Begin thawing reagents and materials for the process
Color Code
Amp Amplification (see Stage 1 — DNA Amplification on page 40)
See Stage 1 — DNA Amplification on page 40 for more information on the protocol.
B Frag
Notes
Begin thawing required reagents
Color Code
Frag Fragmentation and precipitation (see Stage 2 — Fragmentation and Purification on page 53)
206 Axiom™ Genotyping Assay User Manual
Figure 7.4 Two Plate/Week Automated Target Prep Workflow — Day 3 Activities
B
Cent/Dry R/HP QC
X
Notes:
Begin thawing required reagents
Begin warming Axiom array plate to room temperature
X Store Hyb Ready Plate B at –20 °C
Color Codes
Cent/Dry Centrifugation and Drying (see 5. Centrifuge and Dry Pellets on page 61)
R/HP Resuspension and Hyb Mix Prep (see Stage 3 — Resuspension and Hybridization Preparation on page 62)
QC Quality control checks
Denat/hyb Sample Denature/load array plate and Hyb Plate in GeneTitan MC (see Stage 4 — Preparation for the GeneTitan MC
Instrument on page 72)
10:50 Run QC
IMPORTANT: The GeneTitan reagent plates for array processing cannot be loaded until the
array plate has finished hybridization, and they should not be prepared more than 1.5 hours
before hybridization will finish. The GeneTitan reagent plates cannot be prepared ahead of
time and stored.
A GT Reagent
Prep/Load
B Denat/
hyb
Notes
Begin thawing required reagents
Begin warming Axiom array plate to room temperature
Color Codes
Denat/Hyb Sample Denature/load array plate and Hyb Plate in GeneTitan MC (see Stage 4 — Preparation for the GeneTitan MC
Instrument on page 72)
GT Reagent GeneTitan reagent trays prep and load (see Stage 4 — Preparation for the GeneTitan MC Instrument on page 72)
prep/load
10:00 Start Denature Sample for Plate B (See Stage 4 — Preparation for the GeneTitan MC Instrument
on page 72)
11:00 Prepare GeneTitan reagent trays for Plate A (See Stage 4 — Preparation for the GeneTitan MC
Instrument on page 72)
IMPORTANT: The GeneTitan reagent plates for array processing cannot be loaded until the
array plate has finished hybridization, and they should not be prepared more than 1.5 hours
before hybridization will finish. The GeneTitan reagent plates cannot be prepared ahead of
time and stored.
B GT Reagent
Prep/Load
Notes
Begin thawing required reagents
Color Codes
GT Reagent GeneTitan reagent trays prep and load (see Stage 4 — Preparation for the GeneTitan MC Instrument on page 72)
prep/load
9:30 Prepare GeneTitan reagent trays for Plate B (See Stage 4 — Preparation for the GeneTitan MC
Instrument on page 72)
IMPORTANT: Experienced users and careful timing are critical for the successful execution of
this workflow.
The three plate per week workflow is described in the following sections:
Overview of the 3-plate Workflow for Manual Target Preparation
Thawing Frozen Plates of Amplified DNA on page 212
Manual Target Prep and Array Processing on page 212
Detailed instructions for the manual target prep protocol and the array plate processing are given in:
Chapter 4, Axiom Genotyping Assay: Manual Target Preparation on page 95
Chapter 5, Axiom™ Genotyping Assay: Array Processing with the GeneTitan® MC Instrument on
page 149
Figure 8.1 Three plate per week manual target prep workflow
A
z
B
C
x y z
Notes
Begin Thawing required reagents for the process.
Begin warming Axiom array plate to room temperature
x Day 2 11 AM: Freeze Plate C
y Day 3 Noon: start plate C thawing
z Day 4 5:00 PM: Coupled operations on GeneTitan MC: Load reagents for plate A and Hyb tray and array plate for Plate C
Color Code
Amplification
Fragmentation and Precipitation
Centrifugation, Drying, Resuspension, Hybridization Mix Prep, and QC
Sample Denature/load array plate and Hyb Plate in GeneTitan MC
GeneTitan MC reagent plates prep and loading
210 Axiom™ Genotyping Assay User Manual
The three plates are referred to as plates A, B, and C in the manual target prep and in the GeneTitan Array
Processing.
In order to process three plates during a 40-hour week, the steps must be performed in the order and with
the timing described in this chapter.
The timing of these steps is critical because of constraints on both the target preparation, done on the lab
bench, and the array processing, done using GeneTitan MC.
These constraints are described in more detail in:
Timing Issues for Manual Target Preparation on page 210
Timing Issues for GeneTitan MC Array Processing on page 211
GeneTitan reagent plate preparation and 1 hr 1.5 hr Additional time for processing:
loading on GeneTitan 96 arrays: 12.5 hr
* Total Prep Time includes reagent thawing time and hands-on time
Chapter 8 | Manual Target Preparation for Processing Three Axiom Array Plates per Week 211
IMPORTANT: Maintaining consistent timing during the set up of the GeneTitan is critical to
containing the user interventions of the three plate workflow within a work day. Once one
process begins late, there is little opportunity to catch up until the end of the workflow.
The hybridization time for the Axiom assay on the GeneTitan MC Instrument is 23.5 to 24 hr (Table 8.3).
This provides a 30 min window during which you are prompted by the instrument control software to load
the reagents required for washing and staining.
Table 8.3 Time required for array plate processing on the GeneTitan MC Instrument
Steps on the GeneTitan MC Instrument Time Required
Table 8.4 Oven temperatures needed for each step of the workflow
Workflow step Oven Temp
Amplification 30 °C
Stopping Amplification 65 °C
Pre-Fragmentation Incubation 37 °C
Fragmentation Incubation 37 °C
Drying 37 °C
Hybridization 48 °C
Table 8.5 Suggested settings for ovens when performing three plate/week manual target prep workflow
Day of Workflow Oven 1 Oven 2 Oven 3
Day 2 30 °C 65 °C 37 °C
Day 3 48 °C 65 °C 37 °C
Day 4 48 °C 65 °C 37 °C
B Amp
C Amp
Notes
Begin thawing reagents and materials for the process
Color Code
Amp Amplification (see Stage 1 — DNA Amplification on page 107)
Chapter 8 | Manual Target Preparation for Processing Three Axiom Array Plates per Week 213
See Stage 1 — DNA Amplification on page 107 for more information on the protocol.
IMPORTANT: Store plate C immediately after the end of the Amplification reaction without
stopping the Amplification reaction, at –20 °C following 23 hr of amplification reaction
incubation.
B Frag
C x
Notes
Begin thawing required reagents
x Freeze plate C
Color Code
Frag Fragmentation and precipitation (see Stage 2 — Fragmentation and Precipitation on page 115)
WARNING: The Hybridization Tray prep should take place under a running fume hood.
IMPORTANT: Amplified plates that are frozen must be thawed and thoroughly mixed by
following the procedure under Thawing Frozen Plates of Amplified DNA on page 212.
C y Frag
Notes:
Begin thawing required reagents
y Begin thawing plate C
Begin warming Axiom array plate to room temperature
Color Codes
Frag Fragmentation and Precipitation (see Stage 2 — Fragmentation and Precipitation on page 115)
C/D/R/QC Centrifugation, Drying, Resuspension, Hyb Cocktail Prep, and QC (see Stage 3 — Drying, Resuspension and QC on page 122)
Denat/hyb Sample Denature/load array plate and Hyb Plate in GeneTitan MC (see Stage 4 — Denaturation and Hybridization on
page 128)
WARNING: The Hybridization Tray prep should take place under a running fume hood.
IMPORTANT: The GeneTitan reagent plates for array processing cannot be loaded until the
array plate has finished hybridization, and they should not be prepared more than 1.5 hours
before hybridization will finish. The GeneTitan reagent plates cannot be prepared ahead of
time and stored.
A GT Reagent z
prep/load
B Denat/
Hyb
C C/D/R/QC Denat/
Hyb z
Notes
Begin thawing required reagents
Begin warming Axiom array plate to room temperature
z Coupled operations on GeneTitan MC: Load reagent trays for plate A and Hyb Tray/Array Plate for Plate C
Color Codes
C/D/R/QC Centrifugation, Drying, Resuspension, Hyb Cocktail Prep, and QC (see Stage 3 — Drying, Resuspension and QC on
page 122)
Denat/Hyb Sample Denature/load array plate and Hyb Plate in GeneTitan MC (see Stage 4 — Denaturation and Hybridization on
page 128)
GT Reagent GeneTitan reagent trays prep and load (see Stage 5 — Manually Preparing Ligation, Staining, and Stabilization
prep/load Reagent Trays for the GeneTitan MC Instrument on page 134)
IMPORTANT: The GeneTitan reagent plates for array processing cannot be loaded until the
array plate has finished hybridization, and they should not be prepared more than 1.5 hours
before hybridization will finish. The GeneTitan reagent plates cannot be prepared ahead of
time and stored.
B GT Reagent
prep/load
C GT Reagent
prep/load
Notes
Begin thawing required reagents
Color Codes
GT Reagent GeneTitan reagent trays prep and load (see Stage 5 — Manually Preparing Ligation, Staining, and Stabilization Reagent
prep/load
Trays for the GeneTitan MC Instrument on page 134)
Troubleshooting
Biomek FXP Target Prep Express
If a hardware problem is encountered while running the Axiom target preparation methods on the Biomek
FXP Target Prep Express, you can do the following:
Refer to these documents:
®
Biomek Liquid Handler User’s Manual, Beckman Coulter P/N 987834
®
Biomek Software User’s Manual, Beckman Coulter P/N 987835
For information on recovering a run, contact your Affymetrix Field Application Specialist.
For additional information on Biomek FXP Target Prep Express hardware, error messages, or to request
service, contact Beckman Coulter. Be sure to have the serial number of your workstation available.
Table 9.1 GeneTitan Multichannel Instrument troubleshooting guidelines for the Axiom assay
Problem Possible Causes Possible Actions
Plate trapped in GeneTitan Plate (or plate with lid) not properly 1 Restart the GeneTitan Multichannel Instrument.
Multichannel Instrument. loaded in drawer. 2 Run the setup option Unload Plates
Cut edge of lid and plate not aligned. 3 If the plate remains trapped in the instrument,
Gripper failed to retrieve plate. call Affymetrix support.
System requires adjustment.
Computer frozen. Too many processes running Restart the computer and unload all of the plates.
Attempting to transfer data while an Plates in Hyb station: finish hybridization off-line.
array plate is being scanned (imaged). Plate in Scanner: rescan using Scan Only function
Hybridization aborted: System-initiated abort: Array plate and Hyb Tray are still clamped:
System-initiated abort Power loss Contact your local field service engineer with
offline.
Return the hybridized array plate to the
User-initiated abort:
Incorrect protocol selected
218 Axiom™ Genotyping Assay User Manual
Miscellaneous Messages
The drawer listed in the message is not fully closed. Manually push the drawer back into the instrument until it is fully closed. There
are two stop positions with audible clicks; push until you hear the second click and the drawer is fully seated.
Failed Messages
Table 9.3
Problem and Possible Causes
not be complete.
Always ensure that the GeneTitan bottles containing
Rinse bottle — fluid level too low or bottle empty. Wash A and Rinse are above the 50% mark when setting
up the system to process an Axiom HT array plate.
All 600 mL of the Wash buffer B from the Axiom reagent
kit should be emptied into the GeneTitan Wash B bottle
when setting up the system to process a plate. This ensures
that the GeneTitan Wash B bottle is filled to more than the
requisite 35% of Wash B bottle volume.
Recommended actions:
Replenish fluid level in the Rinse or Wash Bottle B to the
1L mark. Do not overfill.
Only replenish bottles when prompted by the UI.
When the instrument experiences a loss in Clean Dry Air (CDA) Possible Causes
pressure, the software will display the warning message. Please verify that the facility CDA or the portable CDA
compressor is in working condition. Refer to the
GeneTitan MC site prep guide for the portable compressor
model that has been validated with the GeneTitan MC
instrument.
Contact your local field application specialist and notify
the engineer about the error message.
Filter Error Messages The filters in the GeneTitan fluidics bottles (Wash A, Wash
B and DI Water) need to be replaced when the filters are
worn out. The software displays warning message boxes
for the filter in each reagent bottle when it detects a
problem or shows a trend of increased fill times during
fluid fill operations.
If an error is detected as described above, then a message
box titled “Filter Change Required” is displayed along
with the information on the specific dispense operation.
You should change all three filters when a warning is
displayed for any one of the three filters.
Refer to the section Replacing the Filter on page 248 in
Appendix F.
Chapter 9 | Troubleshooting 221
Wash/Scan Resume
If a run is aborted during fluidics processing, the instrument will place the aborted array plate into the
Scan Tray. To restart this process, remove the Axiom Array Plate from the Scan Tray and place it in its
protective blue base.
The step at which the run was aborted can be identified by:
Viewing the System Status window if you are aborting the last plate through the fluidics system.
Initiating the resume process.
1. System Setup tab: Select Wash/Scan Resume
2. Follow the prompts to unload and reload all drawers.
The trays will be loaded. It is up to you to determine whether or not to load fresh reagents or reuse the
trays already in the GeneTitan Multichannel Instrument. Base your decision upon the step where the
problem occurred.
To help ensure that the samples are processed correctly, we recommend that you:
1. Load new stain trays with fresh reagents.
2. Load a new Scan Tray.
We do not recommend the use of trays without reagents or holding buffers for steps that appear to have
already executed.
Resume Step
You must select the step at which you wish to resume plate processing. You can select any step that has
not yet been started.
For certain steps, you can enter a duration in seconds (even if the step requires > 1 hr to run, you must
enter the duration in seconds). You can set a step for less time than normal, but not for longer than the
normal duration.
Aborting a Run
Abort can take up to three minutes if a plate is in the Fluidics station. Status window Abort Requested
changes to Abort Completed.
Clamped Array-Plate -Hyb Tray sandwich aborted from the oven or from drawerIN are moved to
drawer 1.
Proceed as follows:
Use the Unload Plates option to remove the aborted plate(s).
Start another run which will force an unload of the aborted plate(s)
System-initiated
Power interruption
Equipment malfunction
The system will abort the processing. Follow the instructions displayed in the user interface.
User-initiated
Can abort processing of individual array plates.
If multiple plates are being processed, the gripper may continue to process the remaining array plates.
222 Axiom™ Genotyping Assay User Manual
Equipment Required
Consumables
25 bp ladder 25 bp ladder
125 bp
25 bp
125 bp
25 bp
B
Equipment Required
The following equipment is required for this protocol.
Figure B.1
226 Axiom™ Genotyping Assay User Manual
Method Selection — add (+) the three formulas created on the Data Reduction Page to the Group 1 box.
Data Reduction Page — create the formulas required for scans at 260, 280 and 320
This protocol consists of six passes. Click Add new Pass to create passes two through six, shown in these
figures below.
Output Settings — Select Export to Microsoft® Excel and Show Result Viewer
Rehybridization
Protocol for Rehybridizing Samples
Rehybridization
The target prep rehybridization protocol is used to help identify potential sources of problem in sample
failures.
You may occasionally encounter sub-optimal performance resulting in sample failures with the Axiom
Genotyping System. Failures that cannot be attributed to instrumentation issues may be due to either
sample quality and/or reagent and array issues.
To help isolate the potential cause of the problem, you may choose to perform a target prep re-
hybridization protocol. This is a protocol by which customers can re-process previously used
hybridization cocktails (that has been stored at -20 °C) in combination with a new array. The results of
this re-hybridization can indicate if the original sub-optimal performance was due to issues associated
with the array, array processing, the DNA target prep, or reagent quality.
Table C.1 shows conclusions that can be drawn from the results of the re-hybridization of Axiom
Genotyping AssayGenotyping Assay hybridization cocktail to the Axiom Genome-Wide Arrays.
Table C.1 Conclusions that can be drawn from the results of the re-hybridization of Axiom Genotyping Assay
hybridization cocktail to the Axiom Genome-Wide Arrays.
Results of Re-hybridization Details Conclusion
Pass/Significant improvement over Re-hybridization of hyb cocktail Problems in original hyb were not
original hybridization results in data that passes due to target prep. Possibly due to
performance metrics and is the array, array processing, and/or
significantly better than original reagents used for array
hybridization processing.
Fail/No improvement over original Re-hybridization of hyb cocktail Inconclusive. Target Prep may be
hybridization results in data that is not suspect however cannot exclude
significantly better than the problems with array and reagents,
original hybridization. or array processing issues.
Affymetrix has not established an upper limit for how long the hybridization plate can be stored at -20C
prior to re-hybridization. We have been successful in re-hybridizing plates that have been stored up to 11
days but individual results may vary as success depends on the quality of the original target prep and
amount of target available for re-hybridization.
or
PCR Plate HSS-9601 stacked on a Costar serocluster round-bottom plate for the off-deck ABI 9700
and ABI 2720 thermal cycler when using the automated target prep methods
or
PCR Plate HSS- 9601 plate for use with manual target prep
Axiom
™ Genome-Wide or Custom myDesign™ Array Plate Kit (96 array)
236 Axiom™ Genotyping Assay User Manual
Reagents
Modules 3 and 4 of the Axiom Reagent Kit
Rehybridizing an Experiment
To rehybridize an experiment:
1. Remove the plate from the –20 °C freezer, and spin briefly to collect all of the liquid to the bottom
of the plate (bring up to 1000 rpm).
2. Slowly and carefully remove the seal to prevent cross-contamination.
3. Using a multichannel pipette, transfer the full volume from each well of the Hyb Tray to the
corresponding wells of a new PCR plate.
Volume per well should be ~45 µL.
4. To recover all of the remaining material from the Hyb Tray:
A. Add 50 µL of molecular biology grade water to each well using a multichannel pipette.
B. Pipet up and down 10 times to mix, rinsing each corner of the well as you mix.
C. Transfer the full volume from each well to the corresponding wells of the PCR plate.
5. Tightly seal the PCR plate with an adhesive film.
6. Vortex each corner of the plate at maximum speed.
7. Spin briefly again to collect all of the liquid to the bottom of wells.
8. Perform denaturation and transfer samples to a new Hybridization Plate:
If using the Biomek FXP Target Prep Express, run these methods:
Denature samples
page 128)
If the samples are successfully registered, the message in Figure D.5 is displayed.
IMPORTANT: Except for the HT array tray and the hybridization tray, you
must deionize all GeneTitan stain trays, stain tray covers and scan tray covers
using an anti-static gun. You must do this before you fill the trays with
reagents and before you place the covers on the trays. Deionization removes
the static electricity. The presence of static electricity on the underside of the
cover can cause the gripper to lift the tray along with the tray cover and can
result in an aborted run. See Figure E.1, Figure E.2 and Figure E.3.
IMPORTANT: Make sure you remove the cap from the gun when you deionize a tray
or cover.
Deionization Procedure
The following process provides guidance on how to use the anti-static gun on the stain and scan tray
covers only. See Figure E.3.
WARNING: The deionization steps 4 and 5 will damage the HT arrays on the plate. Before
using the anti-static gun, ensure that the HT array plates remain in their protective pouch and
placed away from the deionization area. You must place the scan tray and hybridization tray
away from the area where you are performing deionization.
1. Treat the plate or lid as if it were divided into 6 sections, and deionize as follows.
2. Place a Kimwipe on the benchtop.
3. Place the stain tray on a table top. Use the anti-static gun to aim at the center of each of the six sections
on a 96-well or 24-well cover or tray and pull the trigger. Ensure that a stream of ionized particles
settles on all wells of the stain tray or cover to dissipate the static electricity. Squeeze and release the
trigger slowly 3 times over each section (Squeeze for approximately two seconds and release for
approximately two seconds).
4. Place the stain tray cover with the flat surface facing upward on the Kimwipe.
Appendix E | Deionization Procedure for GeneTitan Trays and Covers 243
Aim the anti-static gun (P/N 74-0014) approximately one-half inch away from the flat surface and
pull the trigger. As you pull the trigger move the gun across the cover so that the stream of ionized
particles settles on all areas of the cover and dissipates the static electricity. Squeeze and release the
trigger slowly 3 times over each section (Squeeze for approximately two seconds and release for
approximately two seconds).
5. Place the treated cover or tray on the Kimwipe and lift it up.
6. Do one of the following:
If the Kimwipe does not adhere to the plastic, proceed with the step.
If the Kimwipe adheres to the plastic, then perform steps 3 and 4 again. If it continues to adhere to
the plastic, then the gun is not working and you should replace it.
Figure E.3 Removing the static charge from Stain Trays and lids.
Treat the inside surface of Stain Trays (right) and cover (left).
1 2
3 4
5 6
IMPORTANT: Before performing maintenance turn off power to the instrument to avoid
injury in case of an electrical malfunction.
Monthly
Wipe down the outer surface of the Imaging Device with a dry cloth.
Cleaning Schedule
The GeneTitan fan filter cartridge (Figure F.1) should be cleaned at least every 90 days of service. Note
that in some service locations, the presence of excessive dust or particulate matter may necessitate
cleaning the cartridge more often than 90 days.
A plugged filter cartridge can cause excessive temperatures within the machine that can cause unwanted
evaporation on test media.
Part details:
Affymetrix P/N: 01-0669
Number of parts per assembly: 3
246 Axiom™ Genotyping Assay User Manual
Cleaning Procedure
1. Slide the filter cartridge from the fan filter cartridge at the rear of the GeneTitan Instrument.
2. Submerse in clean DI water. Rinse and agitate gently to dislodge material.
3. Remove from water and dry with clean compressed air or towels.
4. When the filter cartridge is completely dry to the touch, re-install the cartridge.
Appendix F | GeneTitan® MC Instrument Care 247
The message boxes displayed in Figure F.2 will provide information on fluid dispense errors that were
detected by the instrument for any of the bottles or when the instrument detects an increase in the amount
of time that is required to perform the fill operations.
NOTE: The reagent bottles are depressurized when this warning message is displayed. It is
safe to change the filters in all three fluidic bottles when this message is displayed.
After changing the filters in all three bottles using the procedure described below, please press the Yes
button to continue. If you choose to ignore the error message, press the No button. This warning message
will be displayed each time AGCC instrument control software is launched. You may also experience
data quality issues if particulate matter cannot be trapped by the filters if they are clogged.
248 Axiom™ Genotyping Assay User Manual
We recommend that your site keep three spare filters in the event they need to be replaced. The procedure
for replacing the filters is simple.
Part details:
Affymetrix P/N: 01-0671
Filter
IMPORTANT: Replace one filter at a time to ensure the correct connection of the buffer
supply tube to its respective bottle. The color of the buffer supply tubing matches the bottle
color code.
Appendix F | GeneTitan® MC Instrument Care 249
IMPORTANT: Please DO NOT try to replace the lamp when a plate is being processed either
in the fluidics or scanner system.
It displays a red or yellow notice when the lamp life is getting short:
NOTE: The 300 Watt Xenon lamp in the GeneTitan MC instrument is warranted for 500 hours.
The instructions to replace the lamp are available on the following page. After changing the
lamp, it is necessary to reset the lamp life clock manually.
WARNING: You must turn off the lamp using the power switch in the rear of the unit and
remove the power cord. Allow the lamp to cool before attempting to replace the lamp
250 Axiom™ Genotyping Assay User Manual
2. Place each hand on each side of the blue plastic flange and lift out the lamp in a vertical motion
(Figure F.8). You must use both hands to remove the lamp successfully. Apply equal pressure on each
side of the lamp and gently lift.
Figure F.8 Lifting out the lamp
Appendix F | GeneTitan® MC Instrument Care 251
CAUTION: Ensure that you install the lamp in the correct orientation.
1. Hold the lamp by the blue plastic flanges. Ensure that the lamp bulb faces inward toward the reflecting
mirror (Figure F.9) and vertically insert the lamp (Figure F.10).
2. Replace the warning cover and hand tighten the bolts (Figure F.7).
Figure F.9 The Reflecting mirror
Reflecting
Mirror
252 Axiom™ Genotyping Assay User Manual
2. The software will display a message that allows you to change your mind.
Figure F.12 Are you Sure?
3. Click Yes if you want to reset the counter. The software will display a message that confirms that the
software has reset the counter (Figure F.13).
254 Axiom™ Genotyping Assay User Manual
Troubleshooting
This section provides instructions on how to identify and solve simple problems with the GeneTitan MC
Instrument. If a problem or error occurs that is not listed in this chapter contact a Affymetrix technical
support for assistance.
For software errors that do not involve hardware crashes the most common solution is to shut down the
application and then restart it. If the same error occurs shut down both the application and the computer
and then restart. If it still occurs shut down the GeneTitan MC Instrument and then restart.
Log Files
The log files are produced by different AGCC components. The logs provide a record of the tasks
performed by different components, such as the migration tools and installer. These log files provide
useful information for troubleshooting problems. These files may be requested by your field application
specialist (FAS), field service engineer (FSE), or the Affymetrix call center.
DEC.log Text file with information on the use of the Data Exchange Console.
DECError.log Text file with information on errors created while using DEC.
AGCC_LibFileImporter. log Text file with info on use of the Library File Importer.
(with date and time code)
GeneTitan MC Fluidics
1. C:\Command_Console\Logs\96F\
A. subdirectories named by date (e.g., Log7-29-2009)
1) Collect all dated directories and contents since the GeneTitan application was started, not just
the date of the event (some logging goes into files from the date the application started so this
can be critical for us).
2) Absolutely required are all the log directories from the date the run was started to the date of
the event.
2. C:\Command_Console\Logs\96F\FluidicErrorLog - all files in this directory
If you see this notice, you will need to free up sufficient disk space before imaging starts.
256 Axiom™ Genotyping Assay User Manual
I P
Insufficient disk space notice 255 Pate centrifuge 17
Pipette Tip Usage 17
L Pipettes and pipetting 100
Labeling Plate reader other than the DTX880 233
GeneTitan hybridization and reagent trays 152 Precautions 7
Labeling GeneTitan hybridization and reagent trays 106 Precipitation 61
Lambda LS Xenon Arc Lamp Prepare GeneTitan reagent plates 72
replacing the lamp 249 Pre-Run Checklist
Lamp DNA amplification 42
Lambda LS Xenon Arc Lamp 249 Fragmentation and purification 54
Lamp counter preparation for the GeneTitan MC Instrument 78
resetting 253 Resuspension and hybridization preparation 63
Lamp life/Imaging Device status notices 249 Problems and solutions 255
Ligate, Wash, Stain and Scan 172 Procedure
Light curtain 16 deionization 241
Load an array plate and hyb tray 163 procedures 99
Load trays on to GeneTitan MC Instrument 174 Protocol
rehybridization 235
Loading a second array plate and hyb tray 168
Log files 254
GeneTitan MC Fluidics 255
Index 259
Q U
QC control gel protocol 223 Unload Plates 155
Quantitation 225
Quantitation and fragmentation QC checks 127 W
Wash/Scan Resume 221
R Wash-Scan 155
Reagent block template 40 Wash-Scan-Resume 155
References 6 Workflow 181
Registering samples 237
Registration file 237
Rehybridization 235
storing hyb trays 236
Rehybridizing an experiment 236
Related documentation 6
Resuspension and hybridization master mix preparation 126
Resuspension and Hybridization Preparation
summary 69
Resuspension and hybridization preparation 62
S
Safety warnings 7
Safety warnings and precautions
Manual target preparation 96
Sample plate stored at –20 °C
preparation 81
Sample quantitation 225
Scan 155
Seal, vortex and spin 99
Setup options
GeneTitan MC Instrument
154
Shutting down the GeneTitan MC Instrument 182
Simultaneous 8-plate workflow 192
Software default settings 17
Stain trays and covers 151
Storing Hyb Trays for rehybridization 181
T
Target preparation with Biomek 15
Thawing frozen plates of amplified DNA 185
Timing issues
GeneTitan MC Instrument 211
Manual target Prep 210
Transfer denatured samples to Hyb Tray 72
Trays 125
alignment and loading 32
alignment and loading into GeneTitan MC Instrument 149
labeling 35
labeling hyb trays 35
labeling stain trays 36
loading in GeneTitan MC Instrument 36
stain trays and covers 34
Troubleshooting 217
GeneTitan MC Instrument 217
260 Axiom™ Genotyping Assay User Manual