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Mutation-tolerant protein identification by mass-spectrometry

Published: 08 April 2000 Publication History

Abstract

Database search in tandem mass spectrometry is a powerful tool for protein identification. High-throughput spectral acquisition raises the problem of dealing with genetic variation and peptide modifications within a population of related proteins. A method that cross-correlates and clusters related spectra in large collections of uncharacterized spectra (i.e from normal and diseased individuals) would be extremely valuable in functional proteomics. This problem is far from being simple since very similar peptides may have very different spectra. We introduce a new notion of spectral similarity that allows one to identify related spectra even if the corresponding peptides have multiple modifications/mutations. Based on this notion we developed a new algorithm for mutation-tolerant database search as well as a method for cross-correlating related uncharacterized spectra. The paper describes this new approach and its applications in functional proteomics.

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    cover image ACM Conferences
    RECOMB '00: Proceedings of the fourth annual international conference on Computational molecular biology
    April 2000
    329 pages
    ISBN:1581131860
    DOI:10.1145/332306
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    Published: 08 April 2000

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    • (2015)Peptide sequencing via graph path decompositionInformation Sciences: an International Journal10.1016/j.ins.2015.01.003301:C(262-270)Online publication date: 20-Apr-2015
    • (2014)A New Parameterized Algorithm for Rapid Peptide SequencingPLoS ONE10.1371/journal.pone.00874769:2(e87476)Online publication date: 14-Feb-2014
    • (2011)A Parent Mass Filter Algorithm for Peptide Sequencing from Tandem Mass Spectra2011 5th International Conference on Bioinformatics and Biomedical Engineering10.1109/icbbe.2011.5780091(1-4)Online publication date: May-2011
    • (2009)Classifying b and y ions in peptide tandem mass spectraProceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 510.5555/1801874.1801883(37-41)Online publication date: 14-Aug-2009
    • (2009)A novel scoring strategy for identifying peptide via tandem mass spectraProceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 510.5555/1801874.1801877(8-12)Online publication date: 14-Aug-2009
    • (2006)A database search algorithm for identification of peptides with multiple charges using tandem mass spectrometryProceedings of the 2006 international conference on Data Mining for Biomedical Applications10.1007/11691730_2(2-13)Online publication date: 9-Apr-2006
    • (2004)An automata approach to match gapped sequence tags against protein databaseProceedings of the 9th international conference on Implementation and Application of Automata10.1007/978-3-540-30500-2_16(167-177)Online publication date: 22-Jul-2004
    • (2003)On de novo interpretation of tandem mass spectra for peptide identificationProceedings of the seventh annual international conference on Research in computational molecular biology10.1145/640075.640077(9-18)Online publication date: 10-Apr-2003
    • (2002)Generating Peptide Candidates from Amino-Acid Sequence Databases for Protein Identification via Mass SpectrometryAlgorithms in Bioinformatics10.1007/3-540-45784-4_6(68-81)Online publication date: 10-Oct-2002
    • (2001)Algorithms for identifying protein cross-links via tandem mass spectrometryProceedings of the fifth annual international conference on Computational biology10.1145/369133.369177(95-102)Online publication date: 22-Apr-2001
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