title: Crystallization and preliminary X-ray diffraction analysis of cytochrome P450sca-2 from Streptomyces carbophilus involved in production of pravastatin sodium, a tissue-selective inhibitor of HMG-CoA reductase.
abstract: Cytochrome P450sca-2 from Streptomyces carbophilus catalyzes the hydroxylation of ML-236B sodium salt to pravastatin sodium, a tissue-selective inhibitor of 3-hydroxy-3-methylglutaryl-coenzymeA (HMG-CoA) reductase. HMG-CoA reductase is a key enzyme in cholesterol biosynthesis. Crystals of the protein were obtained by the vapour-diffusion method, using ammonium sulfate as a precipitant. The crystals belong to the trigonal space group P3121 (or its enantiomorph, P3221) with unit-cell dimensions a = 103.5, c = 79.8 A. Assuming the presence of one molecule in the asymmetric unit, the calculated value of Vm is 2.68 A3 Da-1. A native data set was collected to a resolution of 2.2 A.
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D003577:Cytochrome P-450 Enzyme System / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000378:metabolism*; D006899:Mixed Function Oxygenases / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D017035:Pravastatin / Q000096:biosynthesis*; D011487:Protein Conformation; D013302:Streptomyces / Q000201:enzymology*; D014961:X-Ray Diffraction