no catalytic activity with lauric acid. The lauric acid is bound mainly via hydrophobic interactions with the carboxylate group of lauric acid coordinated to the heme of P450. Residue Glu40 and Leu382 in the CYP107L2 complex with lauric acid show significant conformational changes to provide plentiful room for the lauric acid in the substrate-binding site. Binding structure of enzyme, lauric acid and pikromycin, overview
no catalytic activity with lauric acid. The lauric acid is bound mainly via hydrophobic interactions with the carboxylate group of lauric acid coordinated to the heme of P450. Residue Glu40 and Leu382 in the CYP107L2 complex with lauric acid show significant conformational changes to provide plentiful room for the lauric acid in the substrate-binding site. Binding structure of enzyme, lauric acid and pikromycin, overview
CYP107L2 shows a low-spin state of heme. Heme is sandwiched between helices I and L in the conserved way of P450 structures. The I-helix crosses the center of CYP107L2 in a slightly bent form over the heme structure, while helices F and G are stacked onto the I-helix to form a wide-open substrate-binding cavity just above the heme moiety
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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
purified recombinant ligand-free CYP107L2 and its complex with lauric acid, (1) sitting drop vapor diffusion method, mixing of 500 nl of 12 mg/ml protein solution with 500 nl of reservoir solution containing 0.17 M ammonium sulfate, 0.085 M sodium cacodylate, pH 6.5, 25.5% w/v PEG 8000, and 15% v/v glycerol, for complex crystals lauric acid in a 1:10 M ratio, and equilibration against 0.05 ml of reservoir solution, 14°C, 30 days, (2) hanging drop vapor diffusion method, mixing of 0.001 ml of 12 mg/ml protein solution with 0.001 ml of reservoir solution containing 0.17 M ammonium sulfate, 0.085 M sodium cacodylate, pH 6.5, 25.5% w/v PEG 8000, and 15% v/v glycerol, and equilibration against 0.05 ml of reservoir solution, X-ray diffraction structure determination and analysis at 2.5-2.6 A resolution
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Enzyme Nomenclature
1.14.13.185 pikromycin synthase
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