mMass as a Software Tool for the Annotation of Cyclic Peptide Tandem Mass Spectra

0382634 - MBÚ 2013 RIV US eng J - Journal Article
Niedermeyer, T. H. J. - Strohalm, Martin
mMass as a Software Tool for the Annotation of Cyclic Peptide Tandem Mass Spectra.
PLoS ONE. Roč. 7, č. 9 (2012), e44913. ISSN 1932-6203. E-ISSN 1932-6203
R&D Projects: GA MŠMT(CZ) ME10013
Institutional research plan: CEZ:AV0Z50200510
Keywords : cyclic peptides * nMass
Subject RIV: CE - Biochemistry
Impact factor: 3.730, year: 2012

Natural or synthetic cyclic peptides often possess pronounced bioactivity. Their mass spectrometric characterization is difficult due to the predominant occurrence of non-proteinogenic monomers and the complex fragmentation patterns observed. Even though several software tools for cyclic peptide tandem mass spectra annotation have been published, these tools are still unable to annotate a majority of the signals observed in experimentally obtained mass spectra. They are thus not suitable for extensive mass spectrometric characterization of these compounds. This lack of advanced and userfriendly software tools has motivated us to extend the fragmentation module of a freely available open-source software, mMass (http://www.mmass.org), to allow for cyclic peptide tandem mass spectra annotation and interpretation. The resulting software has been tested on several cyanobacterial and other naturally occurring peptides. It has been found to be superior to other currently available tools concerning both usability and annotation extensiveness. Thus it is highly useful for accelerating the structure confirmation and elucidation of cyclic as well as linear peptides and depsipeptides
Permanent Link: http://hdl.handle.net/11104/0212801