1gsz

Crystal Structure of a Squalene Cyclase in Complex with the Potential Anticholesteremic Drug Ro48-8071

spinqualitylabelsall models 1gsz, resolution 2.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1gsz is a 3 chain structure with sequence from Alicyclobacillus acidocaldarius. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.8Å Ligands: C8E, R71 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function SQHC_ALIAD Catalyzes the cyclization of squalene into hopene. 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 Squalene-hopene cyclase (SHC) catalyzes the conversion of squalene into pentacyclic compounds. It is the prokaryotic counterpart of the eukaryotic oxidosqualene cyclase (OSC) that catalyzes the steroid scaffold formation. Because of clear sequence homology, SHC can serve as a model for OSC, which is an attractive target for anticholesteremic drugs. We have established the crystal structure of SHC complexed with Ro48-8071, a potent inhibitor of OSC and therefore of cholesterol biosynthesis. Ro48-8071 is bound in the active-center cavity of SHC and extends into the channel that connects the cavity with the membrane. The binding site of Ro48-8071 is largely identical with the expected site of squalene; it differs from a previous model based on photoaffinity labeling. The knowledge of the inhibitor binding mode in SHC is likely to help develop more potent inhibitors for OSC. Crystal structure of a squalene cyclase in complex with the potential anticholesteremic drug Ro48-8071.,Lenhart A, Weihofen WA, Pleschke AE, Schulz GE Chem Biol. 2002 May;9(5):639-45. PMID:12031670 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Squalene-hopene cyclase

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