Can J Microbiol. 1977 Sep;23(9):1178-81.

[Demonstration of 2 enzymes with beta-galactosidase activity in Rhizobium meliloti].

[Article in French]

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.

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