Structural highlights
1hwk is a 4 chain structure with sequence from Human. The December 2007 RCSB PDB Molecule of the Month feature on Oxidosqualene Cyclase by David S. Goodsell is 10.2210/rcsb_pdb/mom_2007_12. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , |
| Related: | 1dq8, 1dq9, 1dqa, 1hw8, 1hw9, 1hwi, 1hwj, 1hwl |
| Gene: | HMGCR (HUMAN) |
| Activity: | Hydroxymethylglutaryl-CoA reductase (NADPH), with EC number 1.1.1.34 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum |
Function
[HMDH_HUMAN] 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.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
HMG-CoA (3-hydroxy-3-methylglutaryl-coenzyme A) reductase (HMGR) catalyzes the committed step in cholesterol biosynthesis. Statins are HMGR inhibitors with inhibition constant values in the nanomolar range that effectively lower serum cholesterol levels and are widely prescribed in the treatment of hypercholesterolemia. We have determined structures of the catalytic portion of human HMGR complexed with six different statins. The statins occupy a portion of the binding site of HMG-CoA, thus blocking access of this substrate to the active site. Near the carboxyl terminus of HMGR, several catalytically relevant residues are disordered in the enzyme-statin complexes. If these residues were not flexible, they would sterically hinder statin binding.
Structural mechanism for statin inhibition of HMG-CoA reductase.,Istvan ES, Deisenhofer J Science. 2001 May 11;292(5519):1160-4. PMID:11349148[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Istvan ES, Deisenhofer J. Structural mechanism for statin inhibition of HMG-CoA reductase. Science. 2001 May 11;292(5519):1160-4. PMID:11349148 doi:10.1126/science.1059344
