AKR1C1

This gene encodes a member of the aldo/keto reductase superfamily, which consists of more than 40 known enzymes and proteins. These enzymes catalyze the conversion of aldehydes and ketones to their corresponding alcohols by utilizing NADH and/or NADPH as cofactors. The enzymes display overlapping but distinct substrate specificity. This enzyme catalyzes the reaction of progesterone to the inactive form 20-alpha-hydroxy-progesterone. This gene shares high sequence identity with three other gene members and is clustered with those three genes at chromosome 10p15-p14. [provided by RefSeq, Jul 2008]

Aldo-Keto Reductase Family 1 Member C1

Cytosolic aldo-keto reductase that catalyzes the NADH and NADPH-dependent reduction of ketosteroids to hydroxysteroids (PubMed:19218247). Most probably acts as a reductase in vivo since the oxidase activity measured in vitro is inhibited by physiological concentrations of NADPH (PubMed:14672942). Displays a broad positional specificity acting on positions 3, 17 and 20 of steroids and regulates the metabolism of hormones like estrogens and androgens (PubMed:10998348). May also reduce conjugated steroids such as 5alpha-dihydrotestosterone sulfate (PubMed:19218247). Displays affinity for bile acids (PubMed:8486699).

Bile acid and bile salt transport Source: UniProtKB
Bile acid metabolic process Source: UniProtKB
Cellular response to jasmonic acid stimulus Source: UniProtKB
Cholesterol homeostasis Source: UniProtKB
Daunorubicin metabolic process Source: UniProtKB
Digestion Source: UniProtKB
Doxorubicin metabolic process Source: UniProtKB
Epithelial cell differentiation Source: UniProtKB
Intestinal cholesterol absorption Source: UniProtKB
Progesterone metabolic process Source: UniProtKB
Prostaglandin metabolic process Source: GO_Central
Response to organophosphorus Source: UniProtKB
Retinal metabolic process Source: UniProtKB
Retinoid metabolic process Source: Reactome
Steroid metabolic process Source: GO_Central
Xenobiotic metabolic process

Cytosol