The Specificity of the Nucleophilic Site of α-Chymotrypsin and its Potential for the Resolution of Alcohols. Enzyme-catalyzed Hydrolyses of Some (+)-, (−)-, and (±)-2-Butyl, -2-Octyl, and -α-Phenethyl Esters
作者:Yong Yeng Lin、David N. Palmer、J. Bryan Jones
DOI:10.1139/v74-075
日期:1974.2.1
The α-chymotrypsin-catalyzed hydrolyses of a representative spectrum of (R)- and (S)-2-butyl, -2-octyl, and -α-phenethyl esters of N-acetyl-L-phenylalanine, N-acetylglycine, α-hydroxy-β-phenyl-propionic, dihydrocinnamic, and hippuric acids have been examined. The kinetic studies were carried out in order to provide data on the practicability of exploiting the stereospecificity of the nucleophilic region
N-乙酰基-L-苯丙氨酸、N-乙酰基甘氨酸、α-(R)-和(S)-2-丁基、-2-辛基和-α-苯乙酯的代表性光谱的α-胰凝乳蛋白酶催化水解-羟基-β-苯基-丙酸、二氢肉桂酸和马尿酸已经过检测。进行动力学研究是为了提供关于利用酶活性位点亲核区域的立体特异性通过选择性水解外消旋醇的酯来拆分外消旋醇的可行性的数据。获得的数据表明醇部分的结构和手性影响底物的催化和结合常数,并且对于二氢肉桂酸酯和马尿酸盐系列的非特异性底物观察到对映体醇部分之间的最大差异。