sapFinder: an R/Bioconductor package for detection of variant peptides in shotgun proteomics experiments

Bioinformatics. 2014 Nov 1;30(21):3136-8. doi: 10.1093/bioinformatics/btu397. Epub 2014 Jul 22.

Abstract

Single nucleotide variations (SNVs) located within a reading frame can result in single amino acid polymorphisms (SAPs), leading to alteration of the corresponding amino acid sequence as well as function of a protein. Accurate detection of SAPs is an important issue in proteomic analysis at the experimental and bioinformatic level. Herein, we present sapFinder, an R software package, for detection of the variant peptides based on tandem mass spectrometry (MS/MS)-based proteomics data. This package automates the construction of variation-associated databases from public SNV repositories or sample-specific next-generation sequencing (NGS) data and the identification of SAPs through database searching, post-processing and generation of HTML-based report with visualized interface.

Availability and implementation: sapFinder is implemented as a Bioconductor package in R. The package and the vignette can be downloaded at http://bioconductor.org/packages/devel/bioc/html/sapFinder.html and are provided under a GPL-2 license.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Substitution*
  • Genetic Variation
  • High-Throughput Nucleotide Sequencing
  • Peptides / chemistry
  • Peptides / genetics*
  • Proteomics / methods*
  • Software*
  • Tandem Mass Spectrometry

Substances

  • Peptides