Remarkable effects of donor esters on the α-chymotrypsin-catalyzed couplings of inherently poor amino acid substrates
作者:Toshifumi Miyazawa、Kayoko Tanaka、Eiichi Ensatsu、Ryoji Yanagihara、Takashi Yamada
DOI:10.1016/s0040-4039(97)10798-5
日期:1998.2
The extremely low efficiency during the α-chymotrypsin-catalyzed coupling of an inherently poor amino acid substrate, e.g., alanine, using the methyl ester as an acyl donor was significantly improved using esters such as the 2,2,2-trifluoroethyl or carbamoylmethyl ester. The ameliorating effect of the latter ester was especially significant.
使用酯类(例如2,2,2-三氟乙基或氨基甲酰基甲基酯)可显着改善α-胰凝乳蛋白酶催化的固有不良氨基酸底物(如丙氨酸)在使用甲基酯作为酰基供体时的极低效率。后一种酯的改善作用特别显着。