Aliases for HMGCR Gene
External Ids for HMGCR Gene
Previous GeneCards Identifiers for HMGCR Gene
HMG-CoA reductase is the rate-limiting enzyme for cholesterol synthesis and is regulated via a negative feedback mechanism mediated by sterols and non-sterol metabolites derived from mevalonate, the product of the reaction catalyzed by reductase. Normally in mammalian cells this enzyme is suppressed by cholesterol derived from the internalization and degradation of low density lipoprotein (LDL) via the LDL receptor. Competitive inhibitors of the reductase induce the expression of LDL receptors in the liver, which in turn increases the catabolism of plasma LDL and lowers the plasma concentration of cholesterol, an important determinant of atherosclerosis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]
GeneCards Summary for HMGCR Gene
HMGCR (3-Hydroxy-3-Methylglutaryl-CoA Reductase) is a Protein Coding gene. Diseases associated with HMGCR include Cerebrotendinous Xanthomatosis and Familial Hyperlipidemia. Among its related pathways are Integrated Breast Cancer Pathway and Regulation of cholesterol biosynthesis by SREBP (SREBF). Gene Ontology (GO) annotations related to this gene include protein homodimerization activity and NADP binding. An important paralog of this gene is SCAP.
UniProtKB/Swiss-Prot for HMGCR Gene
Transmembrane glycoprotein that is the rate-limiting enzyme in cholesterol biosynthesis as well as in the biosynthesis of nonsterol isoprenoids that are essential for normal cell function including ubiquinone and geranylgeranyl proteins.
3-hydroxy-3-methyl-glutaryl-CoA reductase (HMG-CoA reductase) catalyzes the rate limiting step in cholesterol biosynthesis - conversion of 3-hydroxy-3-methyl-glutaryl-CoA to mevalonic acid. HMG-CoA reductase is a transmembrane enzyme, bound to endoplasmic reticulum.