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Gene Protein Transcript Promoter Expression GO/PPI PubMed Cross reference

Gene information for CYP27B1 (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID1594
Official gene symbolCYP27B1
Full namecytochrome P450, family 27, subfamily B, polypeptide 1
Aliases,CP2B,CYP1,CYP1alpha,CYP27B,P450c1,PDDR,VDD1,VDDR,VDDRI,VDR,
Gene summaryThis 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 protein encoded by this gene localizes to the inner mitochondrial membrane where it hydroxylates 25-hydroxyvitamin D3 at the 1alpha position. This reaction synthesizes 1alpha,25-dihydroxyvitamin D3, the active form of vitamin D3, which binds to the vitamin D receptor and regulates calcium metabolism. Thus this enzyme regulates the level of biologically active vitamin D and plays an important role in calcium homeostasis. Mutations in this gene can result in vitamin D-dependent rickets type I. [provided by RefSeq]
LocationChromosome: 12   Locus: 12q13.1-q13.3
Gene position58160976 - 58156117  Map Viewer
Gene orientationminus
Gene size4860 bp
Gene sequence
OMIM ID609506