PROTON AFFINITY OF ARGININE MEASURED BY THE KINETIC APPROACH

被引：161

作者：

WU, ZC ^{[1
]}

FENSELAU, C ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT CHEM & BIOCHEM,CATONSVILLE,MD 21228

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1992年 / 6卷 / 06期

关键词：

D O I：

10.1002/rcm.1290060610

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The proton affinity of arginine is obtained from the kinetic method of dissociation of proton-bound dimers, as 245.2 kcal/mol with an uncertainty of +/-0.5 kcal/mol. This value is about 14 kcal/mol higher than that of histidine, the next most basic of the commonly occurring mammalian amino acids, in contrast to the average difference of 1 kcal/mol between the other 19 amino acids. The order of proton affinity of these 20 amino acids is also determined and discussed.

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页码：403 / 405

页数：3

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