Aliases for CYP3A5 Gene
External Ids for CYP3A5 Gene
Previous GeneCards Identifiers for CYP3A5 Gene
This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. The encoded protein metabolizes drugs as well as the steroid hormones testosterone and progesterone. This gene is part of a cluster of cytochrome P450 genes on chromosome 7q21.1. Two pseudogenes of this gene have been identified within this cluster on chromosome 7. Expression of this gene is widely variable among populations, and a single nucleotide polymorphism that affects transcript splicing has been associated with susceptibility to hypertensions. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2014]
GeneCards Summary for CYP3A5 Gene
CYP3A5 (Cytochrome P450 Family 3 Subfamily A Member 5) is a Protein Coding gene. Diseases associated with CYP3A5 include Hypertension, Essential and Multiple Chemical Sensitivity. Among its related pathways are Irinotecan Pathway, Pharmacokinetics and Drug metabolism - cytochrome P450. Gene Ontology (GO) annotations related to this gene include oxidoreductase activity and heme binding. An important paralog of this gene is CYP3A4.
UniProtKB/Swiss-Prot Summary for CYP3A5 Gene
A cytochrome P450 monooxygenase involved in the metabolism of steroid hormones and vitamins (PubMed:2732228, PubMed:10681376, PubMed:11093772, PubMed:12865317). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:2732228, PubMed:10681376, PubMed:11093772). Exhibits high catalytic activity for the formation of catechol estrogens from 17beta-estradiol (E2) and estrone (E1), namely 2-hydroxy E1 and E2 (PubMed:12865317). Catalyzes 6beta-hydroxylation of the steroid hormones testosterone, progesterone, and androstenedione (PubMed:2732228). Catalyzes the oxidative conversion of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes all trans-retinoic acid (atRA) to 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Also involved in the oxidative metabolism of xenobiotics, including calcium channel blocking drug nifedipine and immunosuppressive drug cyclosporine (PubMed:2732228).