Tags: Protein.
HSD3B1 is a human 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 HSD3B2 it localizes primarily to different tissues such as the placenta and nonsteroidogenic tissues.