WO2021133030A1 - 사이토크롬 c 활성이 강화된 l-아미노산 생산 미생물 및 이를 이용한 l-아미노산 생산방법 - Google Patents
사이토크롬 c 활성이 강화된 l-아미노산 생산 미생물 및 이를 이용한 l-아미노산 생산방법 Download PDFInfo
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
- C07K14/32—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Bacillus (G)
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- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/795—Porphyrin- or corrin-ring-containing peptides
- C07K14/80—Cytochromes
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
- C12N1/205—Bacterial isolates
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/70—Vectors or expression systems specially adapted for E. coli
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/74—Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora
- C12N15/77—Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora for Corynebacterium; for Brevibacterium
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- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
- C12P13/08—Lysine; Diaminopimelic acid; Threonine; Valine
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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- C12N2800/00—Nucleic acids vectors
- C12N2800/10—Plasmid DNA
- C12N2800/101—Plasmid DNA for bacteria
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- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
- C12R2001/15—Corynebacterium
Definitions
- L-amino acid-producing microorganisms with enhanced cytochrome C activity, and methods for producing L-amino acids using the microorganisms.
- the microorganism of the genus Corynebacterium is a gram-positive microorganism that is widely used for the production of L-amino acids.
- L-amino acids particularly L-lysine, are used in animal feed, human pharmaceuticals, and cosmetics industries, and are mainly produced by fermentation using a Corynebacterium strain.
- L- amino acids for example, the production capacity of L- lysine is improved and the development of a continuously sustainable strain is required.
- One example provides an L-amino acid producing microorganism with enhanced cytochrome C (Cytochrome C) activity.
- the enhancement of the cytochrome C activity may be by introduction of a gene encoding cytochrome C.
- the gene encoding the cytochrome C may be a foreign gene.
- Another example provides a method for producing L-amino acids, including the step of culturing the L-amino acid producing microorganism.
- compositions for enhancing L-amino acid production or L-amino acid production in a microorganism including a cytochrome C coding gene, a recombinant vector including the gene, or both.
- the effect on lysine production by amplifying a gene for the purpose of increasing the lysine production capacity of the microorganism of the genus Corynebacterium is confirmed, and based on this, a strain improvement technology for amino acid production is proposed.
- a method for increasing the production capacity of amino acids such as lysine there may be mentioned methods of improving the yield of amino acids such as lysine of the strain, or increasing the production (productivity) of amino acids such as lysine per hour.
- the productivity of amino acids such as lysine may be affected by various factors such as components of the fermentation medium, osmotic pressure of the fermentation medium, temperature, agitation rate, and oxygen supply rate.
- One example provides an L-amino acid producing microorganism with enhanced cytochrome C (Cytochrome C) activity.
- L-amino acid-producing microorganism refers to a case in which a microorganism having L-amino acid-producing ability has increased L-amino acid-producing ability by enhancing cytochrome C activity and/or does not have L-amino acid-producing ability. It can be used to mean a case in which microorganisms have L-amino acid production ability by enhancing cytochrome C activity.
- microorganism encompasses single-celled bacteria, and may be used interchangeably with “cell”.
- the L-amino acid may be L-lysine.
- the cytochrome C activity is A microorganism before the chromium C activity is enhanced can be expressed as a host microorganism.
- the host microorganism may be selected from all microorganisms having the ability to produce L-amino acids (eg, L-lysine).
- the host microorganism may be a microorganism having L-lysine-producing ability naturally or a microorganism having L-lysine-producing ability by introducing a mutation into a parent strain having no or significantly less L-lysine-producing ability.
- the host microorganism is any gram-positive bacteria having L-lysine-producing ability by introducing a mutation into a microorganism having naturally L-lysine-producing ability or a parent strain having no or significantly less L-lysine-producing ability, such as Corynebacter
- the genus Corynebacterium may be at least one selected from the group consisting of microorganisms and the genus Escherichia microorganisms.
- the Corynebacterium genus microorganism is Corynebacterium glutamicum ( Corynebacterium glutamicum ), Corynebacterium ammoniagenes ( Corynebacterium ammoniagenes ), Brevibacterium lactofermentum ( Brevibacterium lactofermentum ), Brevibacterium flabum ( Brevibacterium flavum ), Corynebacterium thermoaminogenes ( Corynebacterium thermoaminogenes ), Corynebacterium efficiens ( Corynebacterium efficiens ) and the like may include, but are not necessarily limited thereto.
- the microorganism of the genus Corynebacterium may be Corynebacterium glutamicum.
- cytochrome C is derived from bacteria and has an average molecular weight of 15 kDa or less, for example, about 8 kDa to about 15 kDa and/or 90 to 150, 100 to 150, 120 to 150, 90 to 125, It is 100 to 125, or 120 to 125 amino acids in length, and refers to cytochrome C of a monomer having membrane-bound properties.
- the cytochrome C may be derived from a microorganism of the genus Bacillus, and the wavelength range in which the absorption band (absorbance) of the lowest energy level in the reduced state appears is 550 to 555 nm or 550 to 551 nm, selected from cytochrome C There may be more than one type.
- the cytochrome C is at least one selected from the group consisting of cytochrome c-551 (absorbance about 551 nm), cytochrome c-550 (absorbance about 550 nm), etc., derived from microorganisms of the genus Bacillus, such as one, It may be 2 types, or 3 types (the numerical value listed after cytochrome c means absorbance).
- the microorganism of the genus Bacillus may be at least one selected from the group consisting of Bacillus pseudofirmus , Bacillus subtilis, and the like.
- the cytochrome C for example, one or more selected from c-551 and cytochrome c-550 may each independently include an amino acid sequence encoded by cccA or cccB.
- the cytochrome C is one selected from the group consisting of Bacillus pseudofirmus (eg, Bacillus pseudofirmus OF4, etc.) and/or Bacillus subtilis- derived cytochrome c-551, Bacillus subtilis- derived cytochrome c-550, etc. may be more than
- the cytochrome C (eg, cytochrome c-551 from Bacillus subtilis ) is a poly containing an amino acid sequence (eg, SEQ ID NO: 16) encoded by cccA (eg, BpOF4_13740 from Bacillus pseudofirmus OF4) It may include a peptide, a polypeptide including an amino acid sequence (eg, SEQ ID NO: 27) encoded by cccB (eg, BpOF4_05495 derived from Bacillus pseudofirmus OF4), or both.
- cccA eg, BpOF4_13740 from Bacillus pseudofirmus OF4
- cccB eg, BpOF4_05495 derived from Bacillus pseudofirmus OF4
- cytochrome C described herein is 20% or more, 30% or more, 40% or more, 50% or more, 55% or more of the amino acid sequence of SEQ ID NO: 16 or SEQ ID NO: 27 described as an example, 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, 82% or more, 85% or more, 87% or more, 90% or more, 91% or more, 92% or more, 93% or more, 94% or greater, 95% or greater, 96% or greater, 97% or greater, 98% or greater, or 99% or greater (eg, 60% to 99.5%, 70% to 99.5%, 80% to 99.5%, 85% to 99.5%, 90 % to 99.5%, 91% to 99.5%, 92% to 99.5%, 93% to 99.5%, 94% to 99.5%, 95% to 99.5%, 96% to 99.5%, 97% to 99.5%, 98% to 99.5%, or 99% to 99.5%) can be interpreted as
- the protein having the sequence homology that can be included in the cytochrome C category described herein is (1) the above-described cytochrome C characteristics, such as (a) bacterial origin, (b) an average molecular weight of 15 kDa or less, such as, about 8 kDa to about 15 kDa, and/or 90 to 150, 100 to 150, 120 to 150, 90 to 125, 100 to 125, or 120 to 125 amino acids in length, (c) membrane binding properties, and (d) monomeric properties.
- cytochrome C characteristics such as (a) bacterial origin, (b) an average molecular weight of 15 kDa or less, such as, about 8 kDa to about 15 kDa, and/or 90 to 150, 100 to 150, 120 to 150, 90 to 125, 100 to 125, or 120 to 125 amino acids in length, (c) membrane binding properties, and (d) monomeric properties.
- the effect of increasing the rate of sugar consumption may be at a level equivalent to that of the protein comprising the amino acid sequence of SEQ ID NO: 16 or SEQ ID NO: 27 exemplified above.
- the L-amino acid producing microorganism with enhanced cytochrome C activity may have an increased L-amino acid producing ability, compared to the same unmodified microorganism having no enhanced cytochrome C activity.
- the term "enhancement of cytochrome C activity” refers to any manipulation in which cytochrome C activity is introduced into a microorganism, or cytochrome C activity can be improved compared to the intrinsic or pre-modification activity of the microorganism. have.
- the "introduction” means that the activity of cytochrome C, which the microorganism did not originally have, appears naturally or artificially.
- the “unmodified microorganism” may refer to a host microorganism in which cytochrome C has not been enriched or has not been enriched.
- the "intrinsic activity” may refer to the activity of cytochrome C originally possessed by the host microorganism before or without cytochrome C enrichment.
- "unmodified” may be used interchangeably with a form having intrinsic activity in which genetic mutation does not occur.
- the enhancement of cytochrome C activity may include both introducing and enhancing exogenous cytochrome C or enhancing endogenous cytochrome C activity.
- the enhancement of cytochrome C activity may be enhanced by introducing exogenous cytochrome C.
- the enhancement of cytochrome C activity in the microorganism is improved compared to the unmodified microorganism in which the sugar consumption rate of the microorganism is not enhanced.
- the cytochrome C activity-enhanced microorganism exemplified in one embodiment is similar to the unmodified microorganism and the strain growth (OD value) and / or L-amino acid, for example, L-lysine production yield within a specific section, and the sugar consumption rate may be improved, which suggests that the cytochrome C activity-enhanced microorganism produces more L-amino acids in a shorter time than the unmodified microorganisms, thereby improving L-amino acid productivity.
- the enhancement of the cytochrome C activity may be due to an increase in the expression level and/or an increase in the activity as cytochrome C at the gene (mRNA) level and/or protein level of cytochrome C, but is limited thereto no.
- the enhancement of the cytochrome C activity may be by introduction of a gene encoding cytochrome C.
- a gene encoding cytochrome C By introducing such a gene encoding cytochrome C, the L-amino acid producing ability of the microorganism having the L-amino acid producing ability is increased, or the L-amino acid producing ability can be imparted to the microorganism having the L-amino acid producing ability.
- the cytochrome C or a gene encoding the same may be derived from (intrinsic) a host microorganism or derived from another microorganism (exogenous).
- the enhancement of cytochrome C activity may be performed by introducing a polynucleotide encoding exogenous cytochrome C into a host microorganism.
- the cytochrome C is as described above, and for example, may be cytochrome C (cytochrome c-551) derived from Bacillus pseudofirmus OF4, for example, SEQ ID NO: 16 (eg, encoded by cccA (BpOF4_13740)) Or it may be one represented by the amino acid sequence of SEQ ID NO: 27 (eg, encoded by cccB (BpOF4_05495)).
- the gene encoding the cytochrome C or the L-amino acid producing microorganism into which the gene is introduced may include a polynucleotide encoding SEQ ID NO: 16, a polynucleotide encoding SEQ ID NO: 27, or both.
- the L-amino acid producing microorganism is a microorganism of the genus Corynebacterium comprising a polynucleotide encoding SEQ ID NO: 16, a polynucleotide encoding SEQ ID NO: 27, or both, such as Corynebacterium glue Tamicum ( Corynebacterium glutamicum ) may be.
- the L-amino acid-producing microorganism may be one with accession number KCCM12640P.
- a polynucleotide which may be used interchangeably with “gene” or a polypeptide (which may be used interchangeably with “protein”) is "comprises a specific nucleic acid sequence or amino acid sequence, consists of a specific nucleic acid sequence or amino acid sequence, Or it is expressed as a specific nucleic acid sequence or amino acid sequence” is an equivalent meaning and interchangeable expressions, and may mean that the polynucleotide or polypeptide essentially includes the specific nucleic acid sequence or amino acid sequence, and the polynucleotide or polypeptide necessarily includes the specific nucleic acid sequence or amino acid sequence.
- nucleic acid sequences or amino acid sequences provided herein can be prepared by conventional mutagenesis methods such as direct evolution and/or site-specification to the extent that they retain their original or desired functions. It may include those modified by site-directed mutagenesis or the like.
- reference to a polynucleotide or polypeptide “comprising a specific nucleic acid sequence or amino acid sequence” means that the polynucleotide or polypeptide (i) consists of or consists essentially of the specific nucleic acid sequence or amino acid sequence; or (ii) at least 60%, at least 70%, at least 80%, at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, 95% of the specific nucleic acid sequence or amino acid sequence.
- the original function may be a cytochrome C function (in the case of an amino acid sequence), or a function encoding a protein having the cytochrome C function (in the case of a nucleic acid sequence), and the desired function is a microorganism It may mean a function of increasing or imparting L-amino acid (eg, L-lysine) production capacity of
- nucleic acid sequence described herein is the amino acid sequence and / or function of the protein expressed from the coding region, considering the codon preferred in the microorganism to express the protein (cytochrome C) due to the degeneracy of the codon.
- Various modifications may be made to the coding region within a range that does not change .
- the term "homology” refers to the degree of correspondence with a given nucleic acid sequence or amino acid sequence, and may be expressed as a percentage (%).
- the algorithm BLAST according to the literature (Karlin and Altschul, Pro. Natl. Acad. Sci. USA, 90, 5873, 1993) or FASTA by Pearson (see Methods Enzymol) ., 183, 63, 1990) can be used.
- BLAST a program called BLASTN or BLASTX has been developed (refer to http://www.ncbi.nlm.nih.gov).
- a polynucleotide comprising a specific nucleic acid sequence comprises a polynucleotide fragment comprising a nucleic acid sequence complementary to the specific nucleic acid sequence or a nucleic acid sequence substantially equivalent thereto, as well as the specific nucleic acid sequence.
- the polynucleotide having the complementarity can be hybridized at a Tm value that can be appropriately adjusted by a person skilled in the art depending on the purpose, for example, a Tm value of 55 °C, 60 °C, 63 °C or 65 °C, and analyzed under the conditions described below. : These conditions are specifically described in known literature.
- Hybridization requires that two nucleotides have complementary sequences, or mismatches between bases may be allowed depending on the stringency of hybridization.
- the term “complementary” may be used to describe a relationship between nucleotide bases capable of hybridizing to each other. For example, in the case of DNA, adenosine is complementary to thymine and cytosine is complementary to guanine.
- the appropriate stringency for hybridizing polynucleotides depends on the length of the polynucleotide and the degree of complementarity, which is well known in the art (see Sambrook et al., supra, 9.50-9.51, 11.7-11.8).
- the increase in the copy number of the polynucleotide is not particularly limited thereto, but the polynucleotide may be introduced into a host microorganism through a vector or may be performed by being inserted into the chromosome of the host microorganism.
- the copy number increase may be performed by introducing a polynucleotide encoding an exogenous cytochrome C or a codon-optimized mutant polynucleotide of the polynucleotide into a host microorganism.
- the foreign polynucleotide may be used without limitation in its origin or sequence as long as it exhibits the same/similar activity as that of cytochrome C it encodes.
- the introduction can be carried out by appropriately selecting and/or modifying known transformation methods by those skilled in the art. By the introduction, the introduced polynucleotide is expressed in the host microorganism, thereby making it possible to generate exogenous cytochrome C.
- Modification of the expression control sequence so as to increase the expression of the polynucleotide is applicable to both foreign polynucleotides and endogenous polynucleotides, and is not particularly limited thereto. Deletion, insertion, non-conservative or conservative substitution, or mutagenesis of a combination thereof, or replacement with an expression control sequence having stronger activity.
- the expression control sequence is not particularly limited thereto, but may be one or more selected from the group consisting of a promoter, an operator sequence, a sequence encoding a ribosome binding site, a sequence controlling the termination of transcription and/or translation, and the like.
- a strong heterologous promoter can be operably linked to the top of the polynucleotide expression unit instead of the native promoter.
- the strong promoter include CJ7 promoter, lysCP1 promoter, EF-Tu promoter, groEL promoter, aceA or aceB promoter. More specifically, the strong promoter may be the lysCP1 promoter (WO2009/096689) or the CJ7 promoter (WO2006/065095), which is a promoter derived from the genus Corynebacterium, but is not limited thereto.
- the gene introduction described herein is performed by introducing a foreign gene (derived from a heterologous and/or homologous to the host microorganism) into a host cell i) in a form operably linked to a recombinant vector, or ii) the host. It can be done by insertion (eg, random insertion) into the chromosome (genome) of the cell.
- the insertion site when inserted into the chromosome (genome) of the host cell, is a location that does not affect the growth of the host cell (eg, non-transcriptional spacer (NTS), etc.) and / or random insertion efficiency It may be a position that can be raised (eg, retrotransposon, etc.), but is not limited thereto.
- NTS non-transcriptional spacer
- the gene or vector introduction can be performed by appropriately selecting a known transformation method by those skilled in the art.
- the term "transformation” refers to introducing a vector including a polynucleotide encoding a target protein (cytochrome C) into a host microorganism so that the protein encoded by the polynucleotide can be expressed in the host cell. it means.
- the transformed polynucleotide may include all of these, whether inserted into or extrachromosomally located in the chromosome of the host microorganism, as long as it can be expressed in the host microorganism.
- the polynucleotide includes DNA and RNA encoding a target protein.
- the form in which it is introduced is not limited.
- the polynucleotide may be introduced into a host microorganism in the form of an expression cassette, which is a gene construct including all elements necessary for self-expression.
- the expression cassette may include expression control elements such as a promoter, a transcription termination signal, a ribosome binding site and/or a translation termination signal, which are operably linked to the polynucleotide in general.
- the expression cassette may be in the form of an expression vector capable of self-replication.
- the polynucleotide may be introduced into a host cell in its own form and operably linked to a sequence required for expression in the host cell.
- operably linked means an expression control element (eg, a promoter) and an expression control element (eg, a promoter) so that the expression control element can perform transcriptional control (eg, transcription initiation) of a polynucleotide encoding a target protein (cytochrome C) It may mean that the polynucleotides are functionally linked. Operable ligation may be performed using genetic recombination techniques known in the art, such as, but not limited to, by conventional site-specific DNA cleavage and ligation.
- the method of transforming the polynucleotide into a host microorganism can be performed by any method of introducing a nucleic acid into a cell (microorganism), and can be performed by appropriately selecting a transformation technique known in the art according to the host microorganism.
- the known transformation methods include electroporation, calcium phosphate (CaPO 4 ) precipitation, calcium chloride (CaCl 2 ) precipitation, microinjection, polyethylene glycol-mediated uptake. ), DEAE-dextran method, cationic liposome method, lipofection, lithium acetate-DMSO method and the like may be exemplified, but is not limited thereto.
- Insertion of the gene into the host cell genome can be performed by appropriately selecting a known method by those skilled in the art, for example, an RNA-guided endonuclease system (RNA-guided endonuclease system; for example, (a) RNA- A guide endonuclease (eg, Cas9 protein, etc.), its coding gene, or a vector comprising the gene; and (b) a guide RNA (eg, single guide RNA (sgRNA), etc.), its coding DNA, or the DNA A mixture (eg, a mixture of RNA-guided endonuclease protein and guide RNA, etc.), a complex (eg, ribonucleic acid fusion protein (RNP)), a recombinant vector (eg, RNA-guided endonuclease) comprising a vector comprising It may be carried out using one or more selected from the group consisting of a vector including the first encoding gene and the guide
- cytochrome C encoding gene a recombinant vector comprising the gene, and/or an increase in L-amino acid production capacity and/or L-amino acid production ability in a microorganism of a cell comprising the gene or the recombinant vector A use for is provided.
- compositions for producing L-amino acids comprising a gene encoding cytochrome C, a recombinant vector containing the gene, or a cell containing the gene or the recombinant vector.
- Another example may be a cytochrome C-encoding gene, a recombinant vector containing the gene, or a composition for producing L-amino acids, including both.
- the composition for producing L-amino acid may be for L-amino acid production in microorganisms, increase in L-amino acid production capacity, and/or to impart L-amino acid production capability.
- Another example is a method for increasing the L-amino acid production capacity of the microorganism, or a method for increasing the L-amino acid production capacity of the microorganism, comprising introducing (transformation) a cytochrome C encoding gene or a recombinant vector containing the gene into the microorganism provide a way
- the cytochrome C, the gene encoding it, and the microorganism are as described above.
- the term "vector” refers to a DNA preparation containing the nucleotide sequence of a polynucleotide encoding the target protein operably linked to a suitable regulatory sequence so that the target protein can be expressed in a suitable host.
- the regulatory sequence may include a promoter capable of initiating transcription, an optional operator sequence for regulating transcription, a sequence encoding a suitable mRNA ribosome binding site, and/or a sequence regulating the termination of transcription and/or translation. have.
- the vector After transformation into a suitable host microorganism, the vector may be expressed independently of the genome (genome) of the host microorganism, or may be integrated into the genome of the host microorganism.
- the vector usable in the present specification is not particularly limited as long as it is capable of replication in a host cell, and may be selected from all commonly used vectors.
- commonly used vectors include natural or recombinant plasmids, cosmids, viruses, bacteriophages, and the like.
- pWE15, M13, MBL3, MBL4, IXII, ASHII, APII, t10, t11, Charon4A, and Charon21A may be used as a phage vector or a cosmid vector, and pBR-based, pUC as a plasmid vector.
- pDZ pACYC177, pACYC184, pCL, pECCG117, pUC19, pBR322, pMW118, pCC1BAC vectors and the like may be exemplified, but is not limited thereto.
- the vector usable herein may be a known expression vector and/or a vector for inserting a polynucleotide into a host cell chromosome. Insertion of the polynucleotide into the host cell chromosome may be accomplished by any method known in the art, for example, homologous recombination, but is not limited thereto.
- the vector may further include a selection marker for confirming whether or not it is inserted into the chromosome.
- the selection marker is used to select cells transformed with the vector, that is, to determine whether the polynucleotide is inserted, and selectable phenotypes such as drug resistance, auxotrophicity, resistance to cytotoxic agents or expression of surface proteins It can be selected from among genes that confer In an environment treated with a selective agent, only the cells expressing the selectable marker survive or exhibit other expression traits, so that the transformed cells can be selected.
- Another example provides a method for producing L-amino acids, comprising the step of culturing the above-described L-amino acid-producing microorganisms in a medium.
- the method after the step of culturing, may further include the step of recovering L-amino acids from the cultured microorganism, the medium, or both.
- the step of culturing the microorganism is not particularly limited thereto, but may be performed by a known batch culture method, a continuous culture method, a fed-batch culture method, and the like.
- the culture conditions are not particularly limited thereto, but use a basic compound (eg, sodium hydroxide, potassium hydroxide or ammonia) or an acidic compound (eg, phosphoric acid or sulfuric acid) to an appropriate pH (eg, pH 5 to 9, specifically can control pH 6 to 8, most specifically pH 6.8) and maintain aerobic conditions by introducing oxygen or an oxygen-containing gas mixture into the culture.
- the culture temperature may be maintained at 20 to 45°C, or 25 to 40°C, and may be cultured for about 10 to 160 hours, but is not limited thereto.
- L-amino acids (eg, L-lysine) produced by the above culture may be secreted into the medium or remain in the cells.
- the medium usable for the culture includes sugars and carbohydrates (eg, glucose, sucrose, lactose, fructose, maltose, molasses, starch and cellulose), oils and fats (eg, soybean oil, sunflower oil, Peanut oil and coconut oil), fatty acids (eg palmitic acid, stearic acid and linoleic acid), alcohols (eg glycerol and ethanol), organic acids (eg acetic acid), etc. are individually used or Or two or more types may be mixed and used, but the present invention is not limited thereto.
- Nitrogen sources include nitrogen-containing organic compounds (e.g. peptone, yeast extract, broth, malt extract, corn steep liquor, soy flour and urea), inorganic compounds (e.g.
- ammonium sulfate, ammonium chloride, ammonium phosphate, ammonium carbonate and nitric acid) ammonium), etc. may be used individually or in a mixture of two or more selected from the group consisting of, but is not limited thereto.
- a phosphorus source at least one selected from the group consisting of potassium dihydrogen phosphate, dipotassium hydrogen phosphate, and a corresponding sodium-containing salt may be used individually or in combination of two or more, but is not limited thereto.
- the medium may contain essential growth-promoting substances such as other metal salts (eg, magnesium sulfate or iron sulfate), amino acids, and/or vitamins.
- the step of recovering the L-amino acid may be collecting the desired amino acid from the medium, the culture medium, or the microorganism using a suitable method known in the art according to the culture method.
- the recovering may be performed by one or more methods selected from centrifugation, filtration, anion exchange chromatography, crystallization, HPLC, and the like.
- the method for recovering the L-amino acid may further include a purification step before, simultaneously, or after that.
- the lysine-producing activity of the lysine-producing strain is enhanced and maintained until the latter half of culture, it is possible to improve the lysine-producing ability.
- 1 is a schematic diagram showing a nucleic acid sequence analysis result of a library vector obtained in Example.
- a genomic DNA library derived from extremophile bacteria that adapts and lives in various extreme environments was prepared.
- extreme microorganisms 4 representative microorganisms that can grow under extreme conditions of high osmotic pressure, high temperature, low oxygen, and various hydrogen ion concentrations, namely, Bacillus atrophaeus (ATCC 49337), Bacillus licheniformis (KCTC 1030), Lactobacillus fermentum (KCTC 3112), and Bacillus pseudofirmus OF4 (ATCC BAA2126) was used.
- genomic DNA was obtained from the four strains using the QIAamp DNA Micro Kit (QIAGEN).
- the obtained genomic DNA is treated with restriction enzyme Sau3A1 (NEB), reacted at 37°C for 10 minutes, and reacted at 65°C for 30 minutes to make an incomplete gene fragment, which is electrophoresed on a 1% agarose gel to produce a 5 to 7kb gene fragment. only acquired.
- the gene fragment for insertion was obtained using the GeneAll Expin GEL SV kit (seoul, KOREA).
- the thus-obtained gene fragment is linked to the pECCG117 vector (Korea Patent No. 0057684) obtained after a 1 hour reaction with restriction enzyme BamHI-HF (NEB) at 37° C. and 30 minutes treatment with CIP (NEB) enzyme at 37° C., E. coli DH5 ⁇ was transformed and plated on LB solid medium containing kanamycin (25 mg/l). Transformed colonies were subjected to PCR using the primers of SEQ ID NOs: 1 and 2 of Table 1 below.
- PCR conditions were denatured at 95°C for 10 minutes, followed by denaturation at 95°C for 1 minute, annealing at 55°C for 1 minute, and polymerization at 72°C for 4 minutes were repeated 30 times, followed by polymerization at 72°C for 10 minutes.
- the four library vectors (p117-Lib.Bat, p117-Lib.Bli, p117-Lib.Lfe, and p117-Lib.Bps) prepared in Example 1 were used to produce lysine, Corynebacterium glutamicum KCCM11016P.
- kanamycin 25 mg/l was It was smeared on the included complex plate medium.
- LYS_Lib.Bat As a control of the library strains, the KCCM11016P strain was transformed with the pECCG117 vector into which the gDNA-derived gene fragment was not inserted, and was named LYS_117 control.
- composition of the complex plate medium used was as follows:
- Glucose 10 g Peptone 10 g, Beef extract 5 g, Yeast extract 5 g, Brain Heart Infusion 18.5 g, NaCl 2.5 g, Urea 2 g, Sorbitiol 91 g, Agar 20 g (based on 1 liter of distilled water)
- the four KCCM11016P-based library strains obtained above were inoculated using a colony-picker (SINGER, PIXL) on a 96-Deep Well Plate-Dome (Bioneer) containing 400ul screening medium, respectively, and in a plate shaking incubator (TAITEC). Incubated for 15 hrs at 32 °C, 12000rpm conditions.
- composition of the seed medium used was as follows:
- Example 2 In order to confirm the sequence of the gene inserted into the three colonies selected in Example 2 LYS_Lib.Bps #257, #881, and #4213, the primers of SEQ ID NOs 1 and 2 described in Table 1 of Example 1 were used. Thus, the gDNA library gene fragment possessed by the colony was amplified by PCR. PCR conditions were the same as in Example 1, and the amplified DNA fragment was obtained using the GeneAll Expin GEL SV kit (seoul, KOREA) and nucleotide sequence analysis was performed. The analysis result confirmed the genetic information through BLAST (NCBI reference sequence NC_013791.2).
- the obtained analysis result is shown in FIG. 1 .
- the LYS_Lib.Bps colony #257 contained the gene fragments of 4794bp
- the colony #881 was 3985bp
- the colony #4213 contained the gene fragments of 4483bp.
- the complete gene ORFs commonly included in the three colonies were identified as BpOF4_13735 and BpOF4_13740, and then, additional experiments were performed on the influence of the two genes.
- a vector for genome insertion was prepared.
- a pDZ_ ⁇ 2284 vector was prepared targeting the Ncgl2284 gene, one of the transposases, to prepare a base vector for gene insertion.
- ATCC13032 gDNA was used as a DNA template for PCR, and primers were prepared with reference to the NCBI base sequence (NC_003450.3). After denaturation at 95°C for 10 minutes with the primers of SEQ ID NOs: 3 and 4, denaturation at 95°C for 1 minute, annealing at 55°C for 1 minute, and polymerization at 72°C for 1 minute were repeated 30 times, followed by polymerization at 72°C for 10 minutes. PCR was performed to obtain a 5' DNA fragment of about 900 bp. Similarly, PCR was performed under the same conditions as above using primers SEQ ID NOs: 5 and 6, and the 3' DNA fragment was amplified.
- the two amplified DNA fragments were purified using the GeneAll Expin GEL SV kit (seoul, KOREA), treated with restriction enzyme XbaI (NEB), and then heat-treated at 65° C. for 20 minutes (Korea Patent No. 2009-0094433) vector and E. coli DH5 ⁇ after ligation using the Infusion Cloning Kit.
- the strain was plated on LB solid medium containing kanamycin (25 mg/l), and the nucleotide sequence of the gene inserted into the pDZ vector was confirmed to finally prepare a pDZ_ ⁇ 2284 vector.
- the vector for further enhancement (expression) of individual genes is obtained by treating the base vector pDZ_ ⁇ 2284 with restriction enzymes NdeI and CIP (NEB) and heat-treating it at 65° C. for 20 minutes for purification. Then, the obtained vector, promoter, and each gene DNA fragment are linked with the Infusion Cloning Kit. was produced.
- the promoter for the additional expression of the gene used the gapA gene promoter of SEQ ID NO: 13, and to obtain it, PCR amplification was performed using ATCC13032 gDNA (NC_003450.3) as a template and primers SEQ ID NOs: 7 and 8.
- PCR was performed using pfu polymerase, denaturing at 95°C for 10 minutes, denaturing at 95°C for 1 minute, annealing at 55°C for 1 minute, and repeating polymerization at 72°C for 1 minute 30 times, followed by polymerization at 72°C for 10 minutes. proceeded.
- the two gene BpOF4_13735 and BPOF4_13740 DNA fragments were processed in the same manner as the promoter PCR.
- BpOF4_13735 For the BpOF4_13735 gene (SEQ ID NO: 14), the primers of SEQ ID NOs: 9 and 10 were used, and for BpOF4_13740 (SEQ ID NO: 15), SEQ ID NO: 11 and The gene was amplified from Bacillus pseudofirmus OF4 gDNA using the primers of 12. The DNA fragments thus obtained were purified using the GeneAll Expin GEL SV kit (seoul, KOREA) and ligated with the pDZ_ ⁇ 2284 vector to prepare two types of vectors. Finally, pDZ_ ⁇ 2284::PgapA BpOF4_13735 vector and pDZ_ ⁇ 2284::PgapA BpOF4_13740 vector were constructed.
- the two types of vectors prepared above were transformed by an electric pulse method into a Corynebacterium glutamicum KCCM11016P strain (Korean Patent No. 10-0159812) producing lysine, and each gene was passed through a secondary DNA-crossover.
- a strain fortified was prepared.
- the two strains thus prepared were named KCCM11016P_ ⁇ 2284::PgapA BpOF4_13735 and KCCM11016P_ ⁇ 2284::PgapA BpOF4_13740.
- Example 5 of individual gene insertion strains lysine productivity analysis
- the two strains prepared in Example 4 were cultured in the following manner to measure OD, lysine production yield, and sugar consumption rate (g/hr).
- each strain was inoculated into a 250 ml corner-baffle flask containing 25 ml of a seed medium, and cultured with shaking at 30° C. for 20 hours at 150 rpm.
- a 250 ml corner-baffle flask containing 24 ml of the production medium was inoculated with 1 ml of the seed culture and cultured with shaking at 32° C. for 40 hours at 150 rpm.
- the composition of the species medium and the production medium is as follows, respectively, and the culture results are shown in Table 4.
- the strain overexpressing BpOF4_13735 did not show significant improvement in lysine yield and sugar consumption rate compared to the parent strain KCCM11016P_ ⁇ 2284.
- the final fermentation OD and yield are similar, but the rate of sugar consumption per hour in the middle section of the culture (17 to 24 hours) increased by 31.5% compared to the parent strain KCCM11016P_ ⁇ 2284.
- Example 2 the effect of the colony LYS_Lib.Bps #257, #881, and #4213 strains confirmed in Example 2 was the effect of strengthening BpOF4_13740.
- Example 6 Improvement of lysine production ability of the BpOF4_13740 gene-enhanced strain
- the BpOF4_13740 gene was analyzed after gene enhancement with another promoter.
- the effect was also confirmed on the BpOF4_05495 gene, which was additionally confirmed by NCBI BLAST analysis.
- a gene expression vector was additionally prepared.
- a vector was prepared in the same manner as the vector prepared in Example 3 above:
- the sigB promoter was amplified by PCR using the primers of SEQ ID NOs: 17 and 18 using ATCC13032 gDNA as a template, and BpOF4_13740 gene was PCR amplified using the primers of SEQ ID NOs: 19 and 12 using Bacillus pseudofirmus OF4 gDNA as a template. These two gene fragments were ligated with the pDZ_ ⁇ 2284 vector to further construct a pDZ_ ⁇ 2284::PsigB BpOF4_13740 vector.
- BpOF4_05495 gene enhancement was performed in the same manner to construct pDZ_ ⁇ 2284::PsigB BpOF4_05495 and pDZ_ ⁇ 2284::PgapA BpOF4_05495 vectors.
- the BpOF4_05495 gene fragment was obtained using SEQ ID NOs: 20 and 21 and SEQ ID NOs: 22 and 21.
- SEQ ID NOs: 23 and 24 primers inserted with ribosome attachment sequences were added, and pDZ_ ⁇ 2284::PsigB BpOF4_13740_05495 and pDZ_ ⁇ 2284::PgapA BpOF4_13740_05495 vectors were also constructed.
- KCCM11016P_ ⁇ 2284::PsigB BpOF4_13740 KCCM11016P_ ⁇ 2284::PsigB BpOF4_05495, KCCM11016P_ ⁇ 2284::PgapA BpOF4_05495, KCCM11016P_ ⁇ 2284::Psig_05495, KCCM11016P_ ⁇ 2284::Psig
- the highest rate of sugar consumption was confirmed when the co-expression of the genes BpOF4_13740 and BpOF4_05495 was enhanced.
- the hourly glucose consumption rate of the KCCM11016P_ ⁇ 2284::PgapA BpOF4_13740_05495 strain showed a 45.9% improvement compared to the control KCCM11016P_ ⁇ 2284.
- Example 7 Analysis of lysine production capacity of the BpOF4_13740_05495 enhanced strain
- Example 6 The genes selected in Example 6 were enhanced in Corynebacterium glutamicum KCCM10770P (Korean Patent No. 10-0924065) and KCCM11347P (Korean Patent No. 10-0073610) that produce L-lysine, respectively.
- additional genes were introduced in the same manner as in Example 6, and finally, three vectors, pDZ_ ⁇ 2284, pDZ_ ⁇ 2284::PsigB BpOF4_13740_05495, and pDZ_ ⁇ 2284::PgapA BpOF4_13740_05495, were electropulsed with Corynebacter.
- the prepared gene-enhanced strains were cultured in the same manner as in Example 5, and the OD, lysine production yield, and relative glucose consumption rate per hour (based on 100% of the rate of glucose consumption per hour of KCCM10770P_ ⁇ 2284 and KCCM11347P_ ⁇ 2284, respectively) were measured, and the results are as follows. Table 7 shows.
- Example 8 BpOF4_13740_05495 introduced CJ3P strain production and lysine production capacity analysis
- the produced strains were named CJ3_ ⁇ 2284, CJ3_ ⁇ 2284::PsigB BpOF4_13740_05495, and CJ3_ ⁇ 2284::PgapA BpOF4_13740_05495, respectively.
- the control CJ3P strain (BpOF4_13740_05495 enhancement was not performed) and three production strains were cultured in the same manner as in Example 5 above, and OD, lysine production yield, and relative glucose consumption rate per hour (the rate of consumption per hour of KCCM10770P_ ⁇ 2284 and KCCM11347P_ ⁇ 2284, respectively) 100% basis) was measured, and the results are shown in Table 8 below:
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Abstract
Description
Description | 서열 (5' -> 3') | 서열번호 |
F primer | TAA TAC GAC TCA CTA TAG GG | 1 |
R primer | CAA TTA ACC CTC ACT AAA | 2 |
균주 | OD 600 | 상대 당소모 속도 | 36hr 라이신 수율 | |
12hr | 36hr | (%) | (%) | |
LYS_117 control | 17.1 | 62.7 | 100 | 15.8 |
LYS_Lib.Bps #257 | 17.4 | 63.5 | 117.4 | 15.9 |
LYS_Lib.Bps #881 | 16.8 | 64.1 | 111.1 | 15.6 |
LYS_Lib.Bps #4213 | 18.1 | 63.8 | 118.0 | 15.8 |
Description | 서열 (5' → 3' or N→C) | 서열번호 |
F primer for ATCC13032 gDNA | GTACCCGGGGATCCTCTAGAATCGCAATGATAGCCCATTC | 3 |
R primer for ATCC13032 gDNA | TTGGTCAAACCTCCCCTcatatgCAGAAATCCACATCAAT | 4 |
F primer for ATCC13032 gDNA | ATTGATGTGGATTTCTGcatatgAGGGGAGGTTTGACCAA | 5 |
R primer for ATCC13032 gDNA | GCCTGCAGGTCGACTCTAGAATGCATCTCTGGATGATGTG | 6 |
F primer for gapA promoter | ATTGATGTGGATTTCTGcatAAGCCTAAAAACGACCGAGC | 7 |
R primer for gapA promoter | GTTGTGTCTCCTCTAAAGATTGTAG | 8 |
F primer for BpOF4_13735 | ATCTTTAGAGGAGACACAACATGGATGAAAAAAGAAAAGC | 9 |
R primer for BpOF4_13735 | TTGGTCAAACCTCCCCTcatTTAACGCCCCAGCCAAAAAATTCC | 10 |
F primer for BpOF4_13740 | ATCTTTAGAGGAGACACAACATGAAAGGAAGACCACTTTT | 11 |
R primer for BpOF4_13740 | TTGGTCAAACCTCCCCTcatTTATTCTGAAATAGATAGTA | 12 |
gapA promoter | AAGCCTAAAAACGACCGAGCCTATTGGGATTACCATTGAAGCCAGTGTGAGTTGCATCACATTGGCTTCAAATCTGAGACTTTAATTTGTGGATTCACGGGGGTGTAATGTAGTTCATAATTAACCCCATTCGGGGGAGCAGATCGTAGTGCGAACGATTTCAGGTTCGTTCCCTGCAAAAACTATTTAGCGCAAGTGTTGGAAATGCCCCCGTTTGGGGTCAATGTCCATTTTTGAATGTGTCTGTATGATTTTGCATCTGCTGCGAAATCTTTGTTTCCCCGCTAAAGTTGAGGACAGGTTGACACGGAGTTGACTCGACGAATTATCCAATGTGAGTAGGTTTGGTGCGTGAGTTGGAAAAATTCGCCATACTCGCCCTTGGGTTCTGTCAGCTCAAGAATTCTTGAGTGACCGATGCTCTGATTGACCTAACTGCTTGACACATTGCATTTCCTACAATCTTTAGAGGAGACACAAC | 13 |
BpOF4_13735 핵산서열 | ATGGATGAAAAAAGAAAAGCGATTATTATAAATGAAATTAAGTACTGGCGCGAATCAAAGCTGCTTCCCTCCCAGTATTGTGATTTCTTATTAACGCTTTATTCAGAAGGAGAGGACCTAGAGACAGCCGACTCAGGAAAGCGCTTCCGAAACATTCGGACAATCTATTCGTTTATTATTGTTCAGCTTTCATTTGTCTTTACTGCTCTTGTCATTTATTTTACTGATTTTTCAAATGGATTGCAAATGCTTATTGGTTTGACTTTTTCGATTATTGTGTTAATTATAGCAAAACGGACTAGGGCAGATGCCTTTTTTCTTAAACAATTTTACTATTTTATAGGGGCTCTGATCCTCTTTTTACTAACGATTGAATGGGTTGTTCACTACAAAAGTACTAATAACCTTTTATTATCAGCAACAATCATTTTACATTGCGTTTTTTGGCTCTTTGCAGGGCTGAAATGGAAAATGCGATTTTTTACGATATCTGCTATACTAGGACTAGTAGTGTTAGGAATTTTTTGGCTGGGGCGTTAA | 14 |
BpOF4_13740 핵산서열 | ATGAAAGGAAGACCACTTTTACCATTTGCGATCATAGCAATTGTCGGGATTGTTGTTATGATTTCGCTTTCATTTATTGGGTTAAACCAGCGTGAAGCGATGCAGGCAGATGAAGAAGGAGAAGAAGAAGTAACTGAAATTGAAGATCCGGTAGCAGCTGGAGAAGAATTAGTGCAAACTTCTTGTATCGGTTGTCACGGTGGCGATTTAAGCGGTGGTGCAGGTCCTGCCCTAACGTCTCTTGAAGGTCAATACACTCAAGAAGAAATTACAGATATTGTTGTTAATGGGATTGGATCAATGCCGTCAGTTAACGATAACGAAGTAGAAGCAGACGCAATTGCACAGTATTTACTATCTATTTCAGAATAA | 15 |
BpOF4_13740 아미노산 서열 | MKGRPLLPFAIIAIVGIVVMISLSFIGLNQREAMQADEEGEEEVTEIEDPVAAGEELVQTSCIGCHGGDLSGGAGPALTSLEGQYTQEEITDIVVNGIGSMPSVNDNEVEADAIAQYLLSISE* | 16 |
균주 | OD | 상대 당소모 속도 |
FN (최종시점) 라이신 수율 |
FN | (%) | (%) | |
KCCM11016P | 68.5 | 99.5 | 18.9 |
KCCM11016P_Δ2284 | 67.8 | 100 | 18.7 |
KCCM11016P_Δ2284::PgapA BpOF4_13735 | 68.3 | 103 | 18.8 |
KCCM11016P_Δ2284::PgapA BpOF4_13740 | 69.1 | 131.5 | 18.6 |
Description | 서열 (5' → 3' or N→C) | 서열번호 |
F primer for sigB promoter | ATTGATGTGGATTTCTGcatTGCAGCACCTGGTGAGGTGG | 17 |
R primer for sigB promoter | AACTGGCCTCCTAAATTCGCGGTTC | 18 |
F primer for BPOF4_13740 | GCGAATTTAGGAGGCCAGTTATGAAAGGAAGACCACTTTT | 19 |
F primer for BpOF4_05495 | GCGAATTTAGGAGGCCAGTTATGAAAAAGTTTTTATTAGC | 20 |
R primer for BpOF4_05495 | TTGGTCAAACCTCCCCTcatTTATTGAGCTTCAAGCCATG | 21 |
F primer for BpOF4_05495 | ATCTTTAGAGGAGACACAACATGAAAAAGTTTTTATTAGC | 22 |
R primer for RBS insertion | CTGTGTTTCCTCCTTTCTCCTGTTATTCTGAAATAGATAGTA | 23 |
F primer for RBS insertion | CAGGAGAAAGGAGGAAACACAGATGAAAAAGTTTTTATTAGC | 24 |
sigB promoter | TGCAGCACCTGGTGAGGTGGCTGAGCCGGTGATTGAAAAGATTGCACAAGGTTTACGTGAGCGCGGAATCACCGTGGAACAAGGACGATTCGGCGCAATGATGAAGGTCACATCGGTTAACGAAGGCCCCTTCACCGTTTTGGTCGAGTGCTAGCCAGTCAATCCTAAGAGCTTGAAACGCCCCAATGTGGGGGTGTTAAGAACTCCATAAAAGCGCTTGGGAACTTTTTGTGGAAGCAGTCCGTTGAACCTCTTGAACCGCGAATTTAGGAGGCCAGTT | 25 |
BPOF4_05495 핵산서열 | ATGAAAAAGTTTTTATTAGCTCTTGGCGCAGTTGTTGCTCTTACAGCATGTGGCGGCGGAGACGAAGCTGCTCCACCGGTTGATGAGGAGTCTCCAGCAGTAGATGAAGCTCCAGCAGATGAGCCTGCAGATGATGCAACAGCTGGTGATTACGATGCAGAATCAGCTCGTGCTACATATGAGCAAAGCTGTATCGCATGTCATGGCGGCGATCTTCAAGGGGCATCAGGTCCAGCTCTAGTAGGAACTGGCCTGTCAGCTGCTGAAATTCAAGACATCATCCAAAACGGACAAGGTTCAATGCCTGCTCAAAATTTAGATGATGACGAAGCTGCTAACCTAGCTGCATGGCTTGAAGCTCAATAA | 26 |
BPOF4_05495 아미노산 서열 | MKKFLLALGAVVALTACGGGDEAAPPVDEESPAVDEAPADEPADDATAGDYDAESARATYEQSCIACHGGDLQGASGPALVGTGLSAAEIQDIIQNGQGSMPAQNLDDDEAANLAAWLEAQ | 27 |
균주 | OD | FN 라이신 농도 | FN 라이신 수율 | 상대 당소모 속도 |
FN | (g/L) | % | (%) | |
KCCM11016P | 68.4 | 9.0 | 18.4 | 101.6 |
KCCM11016P_Δ2284 | 68.1 | 8.7 | 18.7 | 100 |
KCCM11016P_Δ2284::PsigB BpOF4_13740 | 67.5 | 8.4 | 18.1 | 107.1 |
KCCM11016P_Δ2284::PgapA BpOF4_13740 | 68.8 | 9.2 | 18.4 | 142.1 |
KCCM11016P_Δ2284::PsigB BpOF4_05495 | 68.8 | 8.7 | 18.2 | 120.2 |
KCCM11016P_Δ2284::PgapA BpOF4_05495 | 68.9 | 8.9 | 17.8 | 136.6 |
KCCM11016P_Δ2284::PsigB BpOF4_13740_05495 | 68.4 | 9.3 | 19.3 | 114.8 |
KCCM11016P_Δ2284::PgapA BpOF4_13740_05495 | 69 | 9.5 | 19.0 | 145.9 |
균주 | OD | FN 라이신 농도 | FN 라이신 수율 | 당소모 상대 속도 |
FN | (g/L) | (%) | (%) | |
KCCM10770P | 95.5 | 6.7 | 13.3 | 99.4 |
KCCM10770P_Δ2284 | 95.3 | 6.5 | 13.0 | 100 |
KCCM10770P_Δ2284::PsigB BpOF4_13740_05495 | 95.0 | 6.5 | 13.0 | 102.5 |
KCCM10770P_Δ2284::PgapA BpOF4_13740_05495 | 95.9 | 6.3 | 12.7 | 105.6 |
KCCM11347P | 65.0 | 15.1 | 30.2 | 99.4 |
KCCM11347P_Δ2284 | 64.7 | 15.3 | 30.6 | 100 |
KCCM11347P_Δ2284::PsigB BpOF4_13740_05495 | 65.5 | 15.1 | 30.2 | 103.5 |
KCCM11347P_Δ2284::PgapA BpOF4_13740_05495 | 65.2 | 15.5 | 31.0 | 108.2 |
균주 | OD | FN 라이신 농도 | FN 라이신 수율 | 상대 당소모 속도 |
FN | (g/L) | (%) | (%) | |
CJ3 | 70.5 | 4.5 | 9.0 | 100.4 |
CJ3_Δ2284 | 71.4 | 4.2 | 8.4 | 100 |
CJ3_Δ2284::PsigB BpOF4_13740_05495 | 70.9 | 4.4 | 8.8 | 102.9 |
CJ3_Δ2284::PgapA BpOF4_13740_05495 | 71.6 | 4.6 | 9.2 | 160.9 |
Claims (20)
- 바실러스(Bacillus) 속 미생물 유래의 90 내지 150개 아미노산 길이의 사이토크롬 C의 활성이 강화된, L-아미노산 생산 미생물.
- 제1항에 있어서, 상기 사이토크롬 C는 흡광도가 550 내지 555nm인, L-아미노산 생산 미생물.
- 제1항에 있어서, 상기 사이토크롬 C는 사이토크롬 c-551 및 사이토크롬 c-550로 이루어진 군에서 선택된 1종 이상인, L-아미노산 생산 미생물.
- 제1항에 있어서, 상기 사이토크롬 C는 바실러스 수도피르무스 OF4 (Bacillus pseudofirmus OF4) 유래의 사이토크롬 c-551인, L-아미노산 생산 미생물.
- 제4항에 있어서, 상기 바실러스 수도피르무스 OF4 유래의 사이토크롬 c-551은,cccA에 의하여 암호화되는 아미노산 서열을 포함하는 폴리펩타이드,cccB에 의하여 암호화되는 아미노산 서열을 포함하는 폴리펩타이드, 또는이들 모두를 포함하는 것인, L-아미노산 생산 미생물.
- 제5항에 있어서, 상기 cccA는 서열번호 16 또는 이와 80% 이상 상동성을 가지는 아미노산 서열을 암호화하는 것인, L-아미노산 생산 미생물.
- 제5항에 있어서, 상기 cccB는 서열번호 27 또는 이와 80% 이상 상동성을 가지는 아미노산 서열을 암호화하는 것인, L-아미노산 생산 미생물.
- 제1항에 있어서, 사이토크롬 C 활성이 강화되지 않은 동종의 비변형 미생물과 비교하여 당 소모 속도가 증가된, L-아미노산 생산 미생물.
- 제1항에 있어서, 상기 미생물은 코리네박테리움(Corynebacterium) 속 또는 에스케리키아(Escherichia) 속 미생물인, L-아미노산 생산 미생물.
- 제1항 내지 제9항 중 어느 한 항에 있어서, 사이토크롬 C 활성이 강화되지 않은 동종의 비변형 미생물과 비교하여, L-아미노산 생산능이 증가된, L-아미노산 생산 미생물.
- 제10항에 있어서, 상기 L-아미노산은 L-라이신인, L-아미노산 생산 미생물.
- 제1항 내지 제9항 중 어느 한 항의 L-아미노산 생산 미생물을 배지에서 배양하는 단계, 및상기 배양된 미생물, 배지, 또는 이들 모두로부터 L-아미노산을 회수하는 단계를 포함하는, L-아미노산의 생산 방법.
- 제12항에 있어서, 상기 L-아미노산은 L-라이신인, L-아미노산의 생산 방법.
- 바실러스 속 미생물 유래의 사이토크롬 c-551 및 사이토크롬 c-550로 이루어진 군에서 선택된 1종 이상의 사이토크롬 C를 암호화하는 유전자, 상기 유전자를 포함하는 재조합 벡터, 또는 상기 유전자 또는 상기 재조합 벡터를 포함하는 세포를 포함하는, L-아미노산 생산용 조성물.
- 제14항에 있어서, 상기 사이토크롬 C는 바실러스 수도피르무스 OF4 유래의 사이토크롬 c-551인, L-아미노산 생산용 조성물.
- 제15항에 있어서, 상기 바실러스 수도피르무스 OF4 유래의 사이토크롬 c-551은,cccA에 의하여 암호화되는 아미노산 서열을 포함하는 폴리뉴클레오타이드,cccB에 의하여 암호화되는 아미노산 서열을 포함하는 폴리뉴클레오타이드, 또는이들 모두를 포함하는 것인, L-아미노산 생산용 조성물.
- 제16항에 있어서, 상기 cccA는 서열번호 16 또는 이와 80% 이상 상동성을 가지는 아미노산 서열을 암호화하는 것인, L-아미노산 생산용 조성물.
- 제16항에 있어서, 상기 cccA는 서열번호 27 또는 이와 80% 이상 상동성을 가지는 아미노산 서열을 암호화하는 것인, L-아미노산 생산용 조성물.
- 제14항에 있어서, 코리네박테리움 속 또는 에스케리키아 속 미생물에서 L-아미노산을 생산하는 것인, L-아미노산 생산용 조성물.
- 제14항 내지 제19항 중 어느 한 항에 있어서, 상기 L-아미노산은 L-라이신인, L-아미노산 생산용 조성물.
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US17/605,671 US20220275412A1 (en) | 2019-12-23 | 2020-12-22 | Microorganism for producing l-amino acid having increased cytochrome c activity, and l-amino acid production method using same |
EP20905486.5A EP4083064A4 (en) | 2019-12-23 | 2020-12-22 | MICROORGANISM FOR PRODUCING L-AMINO ACID HAVING INCREASED CYTOCHROME C ACTIVITY, AND METHOD FOR PRODUCING L-AMINO ACID USING SAME |
BR112021025900A BR112021025900A2 (pt) | 2019-12-23 | 2020-12-22 | Microrganismo para produção de l-aminoácido tendo atividade do citocromo c aumentada, e método de produção de l-aminoácido usando o mesmo |
CN202080045751.9A CN114008206B (zh) | 2019-12-23 | 2020-12-22 | 具有增强的细胞色素c活性的l-氨基酸生产微生物及使用其的l-氨基酸生产方法 |
AU2020414201A AU2020414201B2 (en) | 2019-12-23 | 2020-12-22 | Microorganism for producing L-amino acid having increased cytochrome C activity, and L-amino acid production method using same |
MX2022003709A MX2022003709A (es) | 2019-12-23 | 2020-12-22 | Microorganismo productor de l-aminoacidos que tiene actividad de citocromo c potenciada y metodo para producir l-aminoacidos utilizando el mismo. |
JP2022506836A JP7362895B2 (ja) | 2019-12-23 | 2020-12-22 | シトクロムcの活性が強化されたl-アミノ酸生産微生物およびこれを用いたl-アミノ酸の生産方法 |
ZA2021/08637A ZA202108637B (en) | 2019-12-23 | 2021-11-04 | Microorganism for producing l-amino acid having increased cytochrome c activity, and l-amino acid production method using same |
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KR10-2019-0173087 | 2019-12-23 | ||
KR1020190173087A KR20210080975A (ko) | 2019-12-23 | 2019-12-23 | 사이토크롬 c 활성이 강화된 l-라이신 생산 미생물 및 이를 이용한 l-라이신 생산방법 |
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CN114008206A (zh) | 2022-02-01 |
JP2022543128A (ja) | 2022-10-07 |
BR112021025900A2 (pt) | 2022-02-08 |
US20220275412A1 (en) | 2022-09-01 |
JP7362895B2 (ja) | 2023-10-17 |
EP4083064A4 (en) | 2024-06-05 |
AU2020414201B2 (en) | 2023-10-05 |
AU2020414201A1 (en) | 2021-11-25 |
MX2022003709A (es) | 2022-04-26 |
EP4083064A1 (en) | 2022-11-02 |
CN114008206B (zh) | 2024-05-17 |
ZA202108637B (en) | 2023-10-25 |
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