1g72

CATALYTIC MECHANISM OF QUINOPROTEIN METHANOL DEHYDROGENASE: A THEORETICAL AND X-RAY CRYSTALLOGRAPHIC INVESTIGATION

spinqualitylabelsall models 1g72, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1g72 is a 4 chain structure with sequence from Methylophilus methylotrophus W3A1. This structure supersedes the now removed PDB entry 1b2n. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.9Å Ligands: CA, PQQ Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DHM1_METME Catalyzes the oxidation of primary alcohols including methanol. 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 catalytic mechanism of the reductive half reaction of the quinoprotein methanol dehydrogenase (MDH) is believed to proceed either through a hemiketal intermediate or by direct transfer of a hydride ion from the substrate methyl group to the cofactor, pyrroloquinoline quinone (PQQ). A crystal structure of the enzyme-substrate complex of a similar quinoprotein, glucose dehydrogenase, has recently been reported that strongly favors the hydride transfer mechanism in that enzyme. A theoretical analysis and an improved refinement of the 1.9-A resolution crystal structure of MDH from Methylophilus methylotrophus W3A1 in the presence of methanol, reported earlier, indicates that the observed tetrahedral configuration of the C-5 atom of PQQ in that study represents the C-5-reduced form of the cofactor and lends support for a hydride transfer mechanism for MDH. Catalytic mechanism of quinoprotein methanol dehydrogenase: A theoretical and x-ray crystallographic investigation.,Zheng YJ, Xia Zx, Chen Zw, Mathews FS, Bruice TC Proc Natl Acad Sci U S A. 2001 Jan 16;98(2):432-4. Epub 2001 Jan 9. PMID:11149955 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Methanol dehydrogenase

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