3bcj
From Proteopedia
Crystal structure of Aldose Reductase complexed with 2S4R (Stereoisomer of Fidarestat, 2S4S) at 0.78 A
Structural highlights
FunctionALDR_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 PubMedThe structure of human aldose reductase in complex with the 2 S4 R stereoisomer of the potent inhibitor Fidarestat ((2 S,4 S)-6-fluoro-2',5'-dioxospiro-[chroman-4,4'-imidazoline]-2-carboxamide) was determined at 15 K and a resolution of 0.78 A. The structure of the complex provides experimental evidence for the inhibition mechanism in which Fidarestat is initially bound neutral and then becomes negatively charged by donating the proton at the 1'-position nitrogen of the cyclic imide ring to the N2 atom of the catalytic His110. Unusual Binding Mode of the 2S4R Stereoisomer of the Potent Aldose Reductase Cyclic Imide Inhibitor Fidarestat (2S4S) in the 15 K Crystal Structure of the Ternary Complex Refined at 0.78 A Resolution: Implications for the Inhibition Mechanism.,Zhao HT, Hazemann I, Mitschler A, Carbone V, Joachimiak A, Ginell S, Podjarny A, El-Kabbani O J Med Chem. 2008 Mar 13;51(5):1478-1481. Epub 2008 Feb 20. PMID:18284183[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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