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Sequence analysis for an unknown peptide by molecular secondary ion mass spectrometry
Author(s) -
Seki Setsuko,
Kambara Hideki,
Naoki Hideo
Publication year - 1985
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210200107
Subject(s) - fragmentation (computing) , metastability , peptide , mass spectrum , ion , mass spectrometry , chemistry , peptide sequence , peptide bond , polyatomic ion , analytical chemistry (journal) , chromatography , biology , organic chemistry , biochemistry , ecology , gene
Positive and negative molecular secondary ion as well as metastable ion mass spectra for various peptides are investigated to clarify their fragmentation regularity. The fragmentation regularity is derived by considering all the possible bond cleavages at the peptide bond or at the adjacent bonds. It is demonstrated that the amino acid sequence for an unknown peptide can be determined by interpreting the positive and negative secondary ion and metastable ion mass spectra using this fragmentation regularity.