[苜蓿根瘤菌中两种具有β-半乳糖苷酶活性的酶的证明]
[Demonstration of 2 enzymes with beta-galactosidase activity in Rhizobium meliloti].
作者信息
Niel C, Guillaume J B, Bechet M
出版信息
Can J Microbiol. 1977 Sep;23(9):1178-81.
PMID:409467
Abstract
The beta-galactosidase (EC 3.2.1.23) activities of wild-type Rhizobium meliloti and its lactose slow-hydrolyzing mutant have been compared. The properties of the enzyme are very different in each strain. These differences allow us to prove that two enzymes with a beta-galactosidase activity can be found in the wild-type whereas only one enzyme remains in the mutant strain.
摘要
已对野生型苜蓿根瘤菌及其乳糖缓慢水解突变体的β-半乳糖苷酶（EC 3.2.1.23）活性进行了比较。每种菌株中该酶的特性差异很大。这些差异使我们能够证明，在野生型中可发现两种具有β-半乳糖苷酶活性的酶，而突变菌株中仅保留一种酶。
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