Male and female isoenzymes of steroid 5alpha-reductase.

Abstract excerpt

There are two steroid 5alpha-reductase isoenzymes, designated type 1 and type 2, in mammals and recent experiments show that each plays a unique physiological role. In this article, the hypothesis is developed that the type 1 gene specifies a female isoenzyme, whereas the type 2 gene specifies a male isoenzyme. This idea results from the following observations. First, mutation of the 5alpha-reductase type 1 gene...

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