24-hydroxycholesterol 7-alpha-hydroxylase

Definition:

A cytochrome P450 monooxygenase involved in neural cholesterol clearance through bile acid synthesis. Catalyzes 7-alpha hydroxylation of (24S)-hydroxycholesterol, a neural oxysterol that is metabolized to bile acids in the liver. 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).

References:

[1]. J Li-Hawkins, et al. Expression cloning of an oxysterol 7alpha-hydroxylase selective for 24-hydroxycholesterol. J Biol Chem. 2000 Jun 2;275(22):16543-9. [Content Brief]

[2]. Ashlee R Stiles, et al. Genetic, anatomic, and clinical determinants of human serum sterol and vitamin D levels. Proc Natl Acad Sci U S A. 2014 Sep 23;111(38):E4006-14. [Content Brief]

Biomedical Dictionary

The Biomedical Dictionary is a comprehensive and professional collection of biological academic terms and subject datas. All explanations are supported by authoritative books or high impact factor literatures, and you can acquire accurate explanations of the biomedical terms you want to know.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Name
Email *

	Sorry, but the email address you supplied was invalid.