Phase 1 Metabolising Enzyme (1-st Step of Metabolism)
CYP3A4
Primary Drug Target
Name
5-alpha reductase 1
Gene Name
SRD5A1
Synonyms
3-oxo-5-alpha-steroid 4-dehydrogenase 1; EC 1.3.99.5; Steroid 5- alpha-reductase 1; SR type 1; S5AR
Specific Function
Converts testosterone into 5-alpha-dihydrotestosterone and progesterone or corticosterone into their corresponding 5- alpha-3-oxosteroids. It plays a central role in sexual differentiation and androgen physiology
Pathway
map00120 Bile acid biosynthesis
map00150 Androgen and estrogen metabolism
Reaction
a 3-oxo-5 alpha-steroid + acceptor = a 3-oxo-delta 4-steroid + reduced acceptor