OMSSAPercolator

OMSSAPercolator is a software tool that enhances protein identification via MS/MS by interfacing the Open Mass Spectrometry Search Algorithm (OMSSA) with Percolator, a machine learning method for re-evaluating database search outcomes. In proteome studies, MS/MS spectra are pivotal for protein identification, and OMSSA is an open-source search engine employed for this purpose. This tool, OMSSAPercolator, improves the performance of protein identification by incorporating Percolator's post-search machine learning capabilities. It surpasses the conventional OMSSA scoring approach, yielding more accurate and reliable results. Developed using JAVA, OMSSAPercolator can be used either independently or seamlessly integrated into existing data analysis pipelines, enhancing the accuracy and quality of protein identification in MS/MS experiments.

Topic

Proteomics experiment;Proteomics;Statistics and probability;Machine learning

Detail

  • Operation: Blind peptide database search;Protein identification;Protein fragment weight comparison;Peptide identification;Target-Decoy;Validation of peptide-spectrum matches

  • Software interface: Command-line user interface

  • Language: Java

  • License: -

  • Cost: Free

  • Version name: 3.6.1

  • Credit: The National High Technology Research and Development Program of China 863 Program, ShenZhen Engineering Laboratoryfor Proteomics.

  • Input: -

  • Output: -

  • Contact: wangj@genomics.cn

  • Collection: -

  • Maturity: -

Publications

  • The OMSSAPercolator: an automated tool to validate OMSSA results.
  • Wen B, Li G, Wright JC, Du C, Feng Q, et al. (2014). The OMSSAPercolator: an automated tool to validate OMSSA results. Proteomics 14(9): 1011-4.
  • https://doi.org/10.1002/pmic.201300393
  • PMID: 24504981
  • PMC: None

Download and documentation


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