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| - | [[Image:2ao0.gif|left|200px]] | + | #REDIRECT [[3h4g]] This PDB entry is obsolete and replaced by 3h4g |
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| - | The line below this paragraph, containing "STRUCTURE_2ao0", creates the "Structure Box" on the page.
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| - | {{STRUCTURE_2ao0| PDB=2ao0 | SCENE= }}
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| - | '''Structure of Aldehyde Reductase Holoenzyme in Complex with the Potent Aldose Reductase Inhibitor Fidarestat: Implications for Inhibitor Binding and Selectivity'''
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| - | ==Overview==
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| - | Structure determination of porcine aldehyde reductase holoenzyme in complex with the potent aldose reductase inhibitor fidarestat was carried out to explain the difference in the potency of the inhibitor for aldose and aldehyde reductases. The hydrogen bonds between the active-site residues Tyr50, His113, and Trp114 and fidarestat are conserved in the two enzymes. In aldose reductase, Leu300 forms a hydrogen bond through its main-chain nitrogen atom with the exocyclic amide group of the inhibitor, which when replaced with a Pro in aldehyde reductase, cannot form a hydrogen bond, thus causing a loss in binding energy. Furthermore, in aldehyde reductase, the side chain of Trp220 occupies a disordered split conformation that is not observed in aldose reductase. Molecular modeling and inhibitory activity measurements suggest that the difference in the interaction between the side chain of Trp220 and fidarestat may contribute to the difference in the binding of the inhibitor to the enzymes.
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| - | ==About this Structure==
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| - | 2AO0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AO0 OCA].
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| - | ==Reference==
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| - | Structure of aldehyde reductase holoenzyme in complex with the potent aldose reductase inhibitor fidarestat: implications for inhibitor binding and selectivity., El-Kabbani O, Carbone V, Darmanin C, Oka M, Mitschler A, Podjarny A, Schulze-Briese C, Chung RP, J Med Chem. 2005 Aug 25;48(17):5536-42. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16107153 16107153]
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| - | [[Category: Single protein]]
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| - | [[Category: Sus scrofa]]
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| - | [[Category: Carbone, V.]]
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| - | [[Category: Chung, R P.]]
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| - | [[Category: Darmanin, C.]]
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| - | [[Category: El-Kabbani, O.]]
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| - | [[Category: Mitschler, A.]]
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| - | [[Category: Oka, M.]]
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| - | [[Category: Podjarny, A.]]
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| - | [[Category: Schulze-Briese, C.]]
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| - | [[Category: Aldo-keto reductase]]
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| - | [[Category: Ternary complex]]
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| - | [[Category: Tim barrel]]
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| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 19:16:26 2008''
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