2c4v | pdb_00002c4v

H. pylori type II DHQase in complex with citrate

spinqualitylabelsall models 2c4v, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2c4v is a 1 chain structure with sequence from Helicobacter pylori. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.5Å Ligands: CIT Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function AROQ_HELPY Catalyzes a trans-dehydration via an enolate intermediate (By similarity).[HAMAP-Rule:MF_00169] 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 crystal structures of the type II dehydroquinase (DHQase) from Helicobacter pylori in complex with three competitive inhibitors have been determined. The inhibitors are the substrate analogue 2,3-anhydroquinate (FA1), citrate, and an oxoxanthene sulfonamide derivative (AH9095). Despite the very different chemical nature of the inhibitors, in each case the primary point of interaction with the enzyme is via the residues that bind the C1 functionalities of the substrate, 3-dehydroquinate, i.e., N76, H102, I103, and H104. The DHQase/AH9095 complex crystal structure shows that sulfonamides can form a scaffold for nonsubstrate-like inhibitors and identifies a large conserved hydrophobic patch at the entrance to the active site as a locus that can be exploited in the development of new ligands. Crystal structures of Helicobacter pylori type II dehydroquinase inhibitor complexes: new directions for inhibitor design.,Robinson DA, Stewart KA, Price NC, Chalk PA, Coggins JR, Lapthorn AJ J Med Chem. 2006 Feb 23;49(4):1282-90. PMID:16480265 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Dehydroquinase 3D structures

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