HSD3B1

HSD3B1 is a human is_associated_with::gene that encodes for a 3beta-hydroxysteroid dehydrogenase/delta(5)-delta(4)isomerase type I or hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1. While it can carry out the same function as is_associated_with::HSD3B2, it localizes primarily to different tissues, such as the is_associated_with::placenta and nonsteroidogenic tissues. Its requirement for the production of is_associated_with::progesterone by the placenta, which has a vital role in pregnancy, may be one reason why no disease based on mutations in this gene has been identified to date.