1t3q

Crystal structure of quinoline 2-Oxidoreductase from Pseudomonas Putida 86

spinqualitylabelsall models 1t3q, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1t3q is a 6 chain structure with sequence from Pseudomonas putida. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.8Å Ligands: FAD, FES, GOL, MCN, SMO, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function P72223_PSEPU 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 The soil bacterium Pseudomonas putida 86 uses quinoline as a sole source of carbon and energy. Quinoline 2-oxidoreductase (Qor) catalyzes the first metabolic step converting quinoline to 2-oxo-1,2-dihydroquinoline. Qor is a member of the molybdenum hydroxylases. The molybdenum ion is coordinated by two ene-dithiolate sulfur atoms, two oxo-ligands, and a catalytically crucial sulfido-ligand, whose position in the active site was controversial. The 1.8 A resolution crystal structure of Qor indicates that the sulfido-ligand occupies the equatorial position at the molybdenum ion. The structural comparison of Qor with the allopurinol-inhibited xanthine dehydrogenase from Rhodobacter capsulatus allows direct insight into the mechanism of substrate recognition and the identification of putative catalytic residues. The active site protein variants QorE743V and QorE743D were analyzed to assess the catalytic role of E743. Active site geometry and substrate recognition of the molybdenum hydroxylase quinoline 2-oxidoreductase.,Bonin I, Martins BM, Purvanov V, Fetzner S, Huber R, Dobbek H Structure. 2004 Aug;12(8):1425-35. PMID:15296736 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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