Solid-state IR-LD spectroscopic and theoretical analysis of arginine-containing peptides

被引:40
|
作者
Kolev, Tsonko [1 ]
机构
[1] Bulgarian Acad Sci, Inst Organ Chem, BG-1113 Sofia, Bulgaria
关键词
glycyl-glycyl-arginine; glycyl-glycyl-arginyl-alanine; tri- and tetrapeptides; IR-LD spectroscopy; ab initio calculations; solid-state;
D O I
10.1002/bip.20525
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Structural prediction and IR-characteristic bands assignment of arginine-containing tri- and tetrapeptides glycyl-glycyl-arginine (GGArg) and glycyl-glycyl-arginyl-alanine (GGArgAla) have been carried out, using linear-dichroic infrared (IR-LD) spectroscopy of oriented solid-samples in a nematic liquid crystal suspension. Spectroscopic data have been supported with ab initio analysis (Hartree-Fock level of theory and 6-31++G** basis set). Predicted geometry parameters have been compared with known crystallographic ones of similar peptides, indicating a good correlation. (c) 2006 Wiley Periodicals, Inc.
引用
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页码:39 / 45
页数:7
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