Crystal Structure of a Squalene Cyclase in Complex with the Potential Anticholesteremic Drug Ro48-8071Lenhart, A., Weihofen, W.A., Pleschke, A.E.W., Schulz, G.E.
(2002) Chem.Biol. 9: 639
- PubMed: 12031670
- Also Cited By: 1H35, 1H36, 1H37, 1H39, 1H3A, 1H3B, 1H3C, 1O6H, 1O6Q, 1O6R, 1O79, 1UMP
- PubMed Abstract:
- Ro48-8071, a New 2,3-Oxidosqualene:Lanosterol Cyclase Inhibitor Lowering Plasma Cholesterol in Hamsters, Squirrel Monkeys, and Minipigs: Comparison to Simvastatin
Morand, O.H.,Aebi, J.D.,Dehmlow, H.,Ji, Y.H.,Gains, N.,Lengsfeld, H.,Himber, J.
(1997) J.Lipid Res. 38: 373
- The Structure of the Membrane Protein Squalene-Hopene Cyclase at 2.0 A Resolution
Wendt, K.U.,Lenhart, A.,Schulz, G.E.
(1999) J.Mol.Biol. 286: 175
- Crystallization and Preliminary X-Ray Crystallographic Analysis of Squalene-Hopene Cyclase from Alicyclobacillus Acidocaldarius
Wendt, K.U.,Feil, C.,Lenhart, A.,Poralla, K.,Schulz, G.E.
(1997) Protein Sci. 6: 722
- Structure and Function of a Squalene Cyclase
Wendt, K.U.,Poralla, K.,Schulz, G.E.
(1997) Science 277: 1811
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 ho ...
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.
Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, D-79104-, Freiburg im Breisgau, Germany.