MECHANISMS OF FRAGMENTATION OF CATIONIC PEPTIDE IONS

被引：22

作者：

ZHAO, H ^{[1
]}

ADAMS, J ^{[1
]}

机构：

[1] EMORY UNIV,DEPT CHEM,ATLANTA,GA 30322

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1993年 / 125卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

PEPTIDES; CATIONS; MECHANISMS; METAL IONS;

D O I：

10.1016/0168-1176(93)80042-D

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Fragmentation mechanisms for formation of several commonly occurring product ions in high-energy collision-induced decomposition spectra of either (M + Cat2+ - H)+ ions of peptides cationized with alkaline earth metal ions, (M + Cat+)+ ions cationized with alkali metal ions, or (M + H)+ ions are evaluated by using deuterium-labelled peptides. The different sources of hydrogen transferred in the reactions are identified. Our study supports some previously proposed mechanisms but also provides evidence for others.

引用

页码：195 / 205

页数：11

共 15 条

[11] HYDROGEN TRANSFER-REACTIONS IN THE FORMATION OF Y+2 SEQUENCE IONS FROM PROTONATED PEPTIDES [J].