水溶液中芳香族和脂肪族二肽的193nm光解：分解量子产率对氨基酸序列的依赖性。

193 nm photolysis of aromatic and aliphatic dipeptides in aqueous solution: dependence of decomposition quantum yield on the amino acid sequence.

作者信息

Mulcahy M, McInerney J G, Nikogosyan D N, Görner H

机构信息

Physics Department and Institute for Nonlinear Science, National University of Ireland, University College, Cork.

出版信息

Biol Chem. 2000 Dec;381(12):1259-62. doi: 10.1515/BC.2000.154.

DOI:10.1515/BC.2000.154

PMID:11209761

Abstract

The values of molar absorption coefficient and quantum yields of photodecomposition and peptide bond scission were determined for a number of aromatic and aliphatic dipeptides under 193 nm laser irradiation in neutral argon-saturated aqueous solution. Under these conditions we could show that no dependence of the dipeptide decomposition quantum yield on the sequence of amino acid residues exists, neither for aromatic dipeptides nor for aliphatic ones.

摘要

在中性氩饱和水溶液中，于193nm激光照射下，测定了多种芳香族和脂肪族二肽的摩尔吸收系数、光解量子产率和肽键断裂量子产率。在这些条件下，我们可以表明，无论是芳香族二肽还是脂肪族二肽，其二肽分解量子产率均不依赖于氨基酸残基的序列。