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AN UNLIKELY SUGAR SUBSTRATE SITE IN THE 1.65 ANGSTROMS STRUCTURE OF THE HUMAN ALDOSE REDUCTASE HOLOENZYME IMPLICATED IN DIABETIC COMPLICATIONS

spinqualitylabelsall models 1ads, resolution 1.65Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1ads is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: NAP Activity: Aldehyde reductase, with EC number 1.1.1.21 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [ALDR_HUMAN] Catalyzes the NADPH-dependent reduction of a wide variety of carbonyl-containing compounds to their corresponding alcohols with a broad range of catalytic efficiencies. 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 Aldose reductase, which catalyzes the reduced form of nicotinamide adenine dinucleotide phosphate (NADPH)-dependent reduction of a wide variety of aromatic and aliphatic carbonyl compounds, is implicated in the development of diabetic and galactosemic complications involving the lens, retina, nerves, and kidney. A 1.65 angstrom refined structure of a recombinant human placenta aldose reductase reveals that the enzyme contains a parallel beta 8/alpha 8-barrel motif and establishes a new motif for NADP-binding oxidoreductases. The substrate-binding site is located in a large, deep elliptical pocket at the COOH-terminal end of the beta barrel with a bound NADPH in an extended conformation. The highly hydrophobic nature of the active site pocket greatly favors aromatic and apolar substrates over highly polar monosaccharides. The structure should allow for the rational design of specific inhibitors that might provide molecular understanding of the catalytic mechanism, as well as possible therapeutic agents. An unlikely sugar substrate site in the 1.65 A structure of the human aldose reductase holoenzyme implicated in diabetic complications.,Wilson DK, Bohren KM, Gabbay KH, Quiocho FA Science. 1992 Jul 3;257(5066):81-4. PMID:1621098 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Aldose Reductase

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