Computational and Statistical Methods for High-Throughput Mass Spectrometry-Based PTM Analysis

Methods Mol Biol. 2017:1558:437-458. doi: 10.1007/978-1-4939-6783-4_21.

Abstract

Cell signaling and functions heavily rely on post-translational modifications (PTMs) of proteins. Their high-throughput characterization is thus of utmost interest for multiple biological and medical investigations. In combination with efficient enrichment methods, peptide mass spectrometry analysis allows the quantitative comparison of thousands of modified peptides over different conditions. However, the large and complex datasets produced pose multiple data interpretation challenges, ranging from spectral interpretation to statistical and multivariate analyses. Here, we present a typical workflow to interpret such data.

Keywords: Bioinformatics; Post-translational modifications (PTMs); Proteomics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Computational Biology / methods*
  • Data Interpretation, Statistical*
  • Data Mining / methods*
  • Databases, Protein
  • Mass Spectrometry*
  • Protein Processing, Post-Translational*
  • Proteins* / chemistry
  • Proteins* / metabolism
  • Proteomics / methods*
  • Search Engine
  • Software
  • User-Computer Interface
  • Web Browser

Substances

  • Proteins