COLLISION-INDUCED DISSOCIATIONS OF DEPROTONATED PEPTIDES - DIPEPTIDES CONTAINING SERINE OR THREONINE

被引：40

作者：

WAUGH, RJ ^{[1
]}

ECKERSLEY, M ^{[1
]}

BOWIE, JH ^{[1
]}

HAYES, RN ^{[1
]}

机构：

[1] UNIV NEBRASKA,DEPT CHEM,LINCOLN,NE 68588

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1990年 / 98卷 / 02期

关键词：

D O I：

10.1016/0168-1176(90)85013-R

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：

The collisional activation mass spectra of (M - H)- ions from dipeptides containing serine or threonine show respective losses of CH2O or MeCHO from the α chains, thus allowing ready identification of these amino acids. The C terminal amino acid may be identified by the general dipeptide fragmentation NH2CH(R′)CONHCH(R2)CO-2 → NH2C̄(R1)CONHCH(R2)CO2H → -NHCH(R2)CO2H + NH2C(R1)CO, except in certain cases when the C terminal amino acid is threonine. © 1990.

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页码：135 / 145

页数：11

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