Fragmentation reactions of some peptide b3 ions: an energy-resolved study.

Fragmentation reactions of some peptide b3 ions: an energy-resolved study.
复制标题

一些肽 b3 离子的断裂反应:一项能量分辨研究。

DOI:
10.1002/rcm.4003
复制
发表时间:
2009
期刊:
Rapid communications in mass spectrometry : RCM
影响因子:
--
通讯作者:
A. G. Harrison
A. G. Harrison
中科院分区:
--
文献类型:
--
作者:
A. G. Harrison

文献摘要

参考文献

被引文献

相似文献

已研究了标称结构AAAoxa,YAAoxa,AYAoxa和AAYoxa的b3离子的碎裂反应作为碰撞能量的函数,允许以定性的方式表达碎裂反应的能量依赖性的击穿图的构建。AAAoxa b3离子的主要碎裂反应涉及a3*(a3-NH3)离子和b2离子的形成,后者在较高内能下成为主要产物。对于YAAoxa和AYAoxa b3离子,通向a3* 的途径相对较小,b2的形成是主要的初级碎裂反应。对于AAYoxa b3离子,除了a3* 之外,还观察到酪氨酸(Y)亚胺离子的大量形成,仅少量形成b2离子。该结果支持并扩展了库珀等人提出的b3离子碎裂的详细机制(J. Am.质谱学会2006; 17:1654)。
The fragmentation reactions of b3 ions of nominal structure AAAoxa, YAAoxa, AYAoxa and AAYoxa have been studied as a function of collision energy, allowing the construction of breakdown graphs expressing in a qualitative way the energy dependence of the fragmentation reactions. The primary fragmentation reactions of the AAAoxa b3 ion involve formation of the a3* (a3-NH3) ion and the b2 ion, with the latter becoming the dominant product at higher internal energies. For both YAAoxa and AYAoxa b3 ions the pathway to a3* is relatively minor with formation of b2 the dominant primary fragmentation reaction. For the AAYoxa b3 ion, in addition to a3*, abundant formation of the tyrosine (Y) iminium ion is observed with only minor formation of the b2 ion. The results support and expand upon the detailed mechanism of fragmentation of b3 ions proposed by Cooper et al. (J. Am. Soc. Mass Spectrom. 2006; 17: 1654).
IRMPD 光谱显示 AGG 形成恶唑酮 b2 离子。
DOI: 10.1021/ja8067929
发表时间: 2008
影响因子: 15
作者:
Yoon,SungHwan;Chamot-Rooke,Julia;Perkins,BrittanyR;Hilderbrand,AmyE;Poutsma,JohnC;Wysocki,VickiH
通讯作者: Wysocki,VickiH
蛋白质的基质辅助激光解吸电离质谱。
DOI: 10.1016/s0076-6879(96)70024-1
发表时间: 1996
影响因子: --
作者:
Beavis,RC;Chait,BT
通讯作者: Chait,BT