ANOMERIZATION AND HYDROLYSIS OF LACTOSE BY BETA-GALACTOSIDASE FROM SACCHAROMYCES-LACTIS

被引：1

作者：

MBUYIKALALA, A ^{[1
]}

PERRAUDIN, JP ^{[1
]}

PRIEELS, JP ^{[1
]}

机构：

[1] UNIV LIBRE BRUXELLES, SERV CHIM GEN 1, B-1050 BRUSSELS, BELGIUM

来源：

ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS | 1990年 / 277卷 / 02期

关键词：

D O I：

10.1016/0003-9861(90)90601-T

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：

β-Galactosidase from Saccharomyces lactis was found to be able to catalyze both the anomerization of α-lactose and the hydrolysis of β-lactose; the rate of hydrolysis appeared to be four times higher with a 1:1 mixture of α and β lactose than with a freshly prepared solution of α-lactose. The enzyme was also found to be unable to hydrolyze α-lactose. Thus, it appears that β-galactosidase from S. lactis has its hydrolytic activity on lactose adapted only to the naturally more abundant β-lactose. © 1990.

引用

页码：434 / 438

页数：5

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