PEAKS DB: De Novo Sequencing Assisted Database Search for Sensitive and Accurate Peptide Identification

peer-reviewed · Molecular & Cellular Proteomics · 2012

peer-reviewed · Molecular & Cellular Proteomics · 2012. Jing Zhang et al. Many software tools have been developed for the automated identification of peptides from tandem mass…
Date 2012-04-01
Type peer-reviewed
Venue Molecular & Cellular Proteomics
Publisher ASBMB
Contribution adjacent
DOI 10.1074/mcp.M111.010587
Citations (OpenAlex) 1128
Venue 2-year citedness 4.17

Abstract

Many software tools have been developed for the automated identification of peptides from tandem mass spectra. The accuracy and sensitivity of the identification software via database search are critical for successful proteomics experiments. A new database search tool, PEAKS DB, has been developed by incorporating the de novo sequencing results into the database search. PEAKS DB achieves significantly improved accuracy and sensitivity over two other commonly used software packages. Additionally, a new result validation method, decoy fusion, has been introduced to solve the issue of overconfidence that exists in the conventional target decoy method for certain types of peptide identification software.

Authors

  1. Jing Zhang · Bioinformatics Solutions Inc.
  2. Lei Xin · Bioinformatics Solutions Inc.
  3. Baozhen Shan · Bioinformatics Solutions Inc.
  4. Weiwu Chen · Bioinformatics Solutions Inc.
  5. Mingjie Xie · Rapid Novor Inc.
  6. Denis Yuen · Bioinformatics Solutions Inc., University of Waterloo
  7. Weiming Zhang · Bioinformatics Solutions Inc.
  8. Zefeng Zhang · Bioinformatics Solutions Inc.
  9. Gilles Lajoie · University of Western Ontario
  10. Bin Ma · Rapid Novor Inc., University of Waterloo, University of Western Ontario

Methods and tools

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