POR cytochrome p450 oxidoreductase [ Homo sapiens (human) ]
Source: NCBI Gene (ID 5447)
Source: NCBI Gene (ID 5447)
Symbol: POR
Full name: cytochrome p450 oxidoreductase
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Also known as: CPR; CYPOR; P450R
Summary: This gene encodes an endoplasmic reticulum membrane oxidoreductase that is essential for multiple metabolic processes, including reactions catalyzed by cytochrome P450 proteins for metabolism of steroid hormones, drugs and xenobiotics. The encoded protein has a flavin adenine dinucleotide (FAD)-binding domain and a flavodoxin-like domain which bind two cofactors, FAD and FMN, that allow it to donate electrons directly from NADPH to all microsomal P450 enzymes. Mutations in this gene cause a complex set of disorders, including apparent combined P450C17 and P450C21 deficiency, amenorrhea and disordered steroidogenesis, congenital adrenal hyperplasia and Antley-Bixler syndrome, that resemble those caused by defects in steroid metabolizing enzymes such as aromatase, 21-hydroxylase, and 17 alpha-hydroxylase. [provided by RefSeq, Aug 2020]
Expression: Ubiquitous expression in liver (RPKM 99.7), adrenal (RPKM 78.6) and 25 other tissues
Orthologs: mouse
Gene size: 71701bp
Exon count: 19