Automated interpretation of low-energy collision-induced dissociation spectra by SeqMS, a software aid for de novo sequencing by tandem mass spectrometry

peer-reviewed · Electrophoresis · 2000

peer-reviewed · Electrophoresis · 2000. Jorge Fernández-de-Cossío et al. SeqMS, a software aid for de novo sequencing by tandem mass spectrometry (MS/MS), which was initially…
Date 2000-05-01
Type peer-reviewed
Venue Electrophoresis
Publisher Wiley
Contribution algorithm
DOI 10.1002/(SICI)1522-2683(20000501)21:9<1694::AID-ELPS1694>3.0.CO;2-W
Citations (OpenAlex) 73
Venue 2-year citedness 1.93

Abstract

SeqMS, a software aid for de novo sequencing by tandem mass spectrometry (MS/MS), which was initially developed for the automated interpretation of high-energy collision-induced dissociation (CID) MS/MS spectra of peptides, has been applied to the interpretation of low-energy CID and post-source decay (PSD) spectra of peptides. Based on peptide backbone fragmented ions and their related ions, which are the dominant ions observed in the latter two techniques, the types of ions and their propensities to be observed have been optimized for efficient interpretation of the spectra. In a typical example, the modified SeqMS allowed the complete sequencing of a 31-amino acid synthetic peptide, except for the isobaric amino acids (Leu or Ile, and Lys or Gln), based on only the low-energy CID-MS/MS spectrum.

Authors

  1. Jorge Fernández-de-Cossío · Center for Genetic Engineering and Biotechnology, Osaka University
  2. Luis Javier González · Center for Genetic Engineering and Biotechnology
  3. Yoshinori Satomi · Osaka University
  4. Takaki Shima · Osaka University
  5. Nobuaki Okumura · Osaka University
  6. Vladimir Besada · Center for Genetic Engineering and Biotechnology
  7. Lázaro Betancourt · Center for Genetic Engineering and Biotechnology
  8. Gabriel Padrón · Center for Genetic Engineering and Biotechnology
  9. Yasutsugu Shimonishi · Osaka University
  10. Toshifumi Takao · Osaka University

Methods and tools

  • SeqMS: Software aid for automated interpretation of low-energy CID spectra for de novo sequencing by tandem MS.

Cites (3)

Cited by (13)

Seen in the charts

Back to the full map

Back to top