Rat cytochrome P450, family 7, subfamily A, polypeptide 1 (CYP7A1) ELISA kit

Sample Types: serum, plasma, tissue homogenates, cell lysates Detection Range: 93.75 pg/mL-6000 pg/mL Sensitivity: 23.4 pg/mL Assay Principle: quantitative Measurement: SandwichAssay Time: 1-5h Sample Volume: 50-100ulDetection Wavelength: 450 nmProtein function: A cytochrome P450 monooxygenase involved in the metabolism of endogenous cholesterol and its oxygenated derivatives (oxysterols) (PubMed:1694852, PubMed:2335522). 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-ferrihemoprotein reductase) (PubMed:1694852, PubMed:2335522). Functions as a critical regulatory enzyme of bile acid biosynthesis and cholesterol homeostasis. Catalyzes the hydroxylation of carbon hydrogen bond at 7-alpha position of cholesterol, a rate-limiting step in cholesterol catabolism and bile acid biosynthesis (PubMed:1694852, PubMed:2335522). 7-alpha hydroxylates several oxysterols, including 4beta-hydroxycholesterol and 24-hydroxycholesterol. Catalyzes the oxidation of the 7, 8 double bond of 7-dehydrocholesterol and lathosterol with direct and predominant formation of the 7-keto derivatives. [The UniProt Consortium]