Rabbit anti-Human CYP8B1 Polyclonal Antibody

Uniprot Id

Q9UNU6

Target Species

Human

Target Name

CYP8B1

Target Full Name

7-alpha-hydroxycholest-4-en-3-one 12-alpha-hydroxylase

Target Function

A cytochrome P450 monooxygenase involved in primary bile acid biosynthesis. Catalyzes the 12alpha-hydroxylation of 7alpha-hydroxy-4-cholesten-3-one, an intermediate metabolite in cholic acid biosynthesis. Controls biliary balance of cholic acid and chenodeoxycholic acid, ultimately regulating the intestinal absorption of dietary lipids. 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 (CPR; NADPH--hemoprotein reductase).

Target Subcellular Location

Endoplasmic reticulum membrane; Single-pass membrane protein. Microsome membrane; Single-pass membrane protein.

Target Protein Families

Cytochrome P450 family

Target Tissue Specificity

Liver.

Target Research Area

Cardiovascular

Target Synonyms

7-alpha-hydroxy-4-cholesten-3-one 12-alpha-hydroxylase; 7-alpha-hydroxycholest-4-en-3-one 12-alpha-hydroxylase; CP8B; CP8B1_HUMAN; CYP12; CYP8B1; CYPVIIIB1; Cytochrome P450 8B1; Cytochrome P450 subfamily VIIIB (sterol 12 alpha hydroxylase) polypeptide 1; Cytochrome P450; family 8; subfamily B; polypeptide 1; Sterol 12-alpha-hydroxylase

Target Background

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. This endoplasmic reticulum membrane protein catalyzes the conversion of 7 alpha-hydroxy-4-cholesten-3-one into 7-alpha, 12-alpha-dihydroxy-4-cholesten-3-one. The balance between these two steroids determines the relative amounts of cholic acid and chenodeoxycholic acid both of which are secreted in the bile and affect the solubility of cholesterol. This gene is unique among the cytochrome P450 genes in that it is intronless.