SRD5A2
Template:Short description Template:Infobox gene
The human gene SRD5A2 encodes the 3-oxo-5α-steroid 4-dehydrogenase 2 enzyme, also known as 5α-reductase type 2 (5αR2),[1][2] one of three isozymes of 5α-reductase.
5αR2 catalyzes the conversion of the male sex hormone testosterone into the more potent androgen, dihydrotestosterone.
5αR2 is a microsomal protein expressed at high levels in androgen-sensitive tissues such as the prostate. The enzyme is active at acidic pH and is sensitive to the 4-azasteroid inhibitor finasteride. Deficiencies in 5αR2 activity of the can lead to a condition known as 5α-reductase 2 deficiency, which is a cause of 46,XY DSD that presents as atypical male genitalia.
See also
References
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Further reading
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This article incorporates text from the United States National Library of Medicine, which is in the public domain.
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