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DISMS2: A flexible algorithm for direct proteome- wide distance calculation of LC-MS/MS runs

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Societal Impact Ecosystem Co-Design

Abstract

The classification of samples on a molecular level has manifold applications, from patient classification regarding cancer treatment to phylogenetics for identifying evolutionary relationships between species. Modern methods employ the alignment of DNA or amino acid sequences, mostly not genome-wide but only on selected parts of the genome. Recently proteomics-based approaches have become popular. An established method for the identification of peptides and proteins is liquid chromatography-tandem mass spectrometry (LC-MS/MS). First, protein sequences from MS/MS spectra are identified by means of database searches, given samples with known genome-wide sequence information, then sequence based methods are applied. Alternatively, de novo peptide sequencing algorithms annotate MS/MS spectra and deduce peptide/protein information without a database. A newer approach independent of additional information is to directly compare unidentified tandem mass spectra. The challenge then is to compute the distance between pairwise MS/MS runs consisting of thousands of spectra.

Cite this activity

Rieder V., Blank-Landeshammer B., Stuhr M., Schell T., Biß K., Kollipara L., Meyer A., Pfenninger M., Westphal H., Sickmann A. and Rahnenführer J. (2017) DISMS2: A flexible algorithm for direct proteome- wide distance calculation of LC-MS/MS runs. BMC Bioinformatics 18(1). 10.1186/s12859-017-1514-2

Details

Date 03.03.2017
Journal BMC Bioinformatics
Issue 1
Volume 18
Open Access Open Access (open)
Open Access Status Open Access (open)
Eprints_link https://cris.leibniz-zmt.de/id/eprint/1913
Peer-Reviewed

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