1y9a

Alcohol Dehydrogenase from Entamoeba histolotica in complex with cacodylate

spinqualitylabelsall models 1y9a, resolution 1.81Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1y9a is a 2 chain structure with sequence from Entamoeba histolytica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.81Å Ligands: ACT, CAC, EDO, MG, OHS, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ADH1_ENTH1 Alcohol dehydrogenase with a preference for medium chain secondary alcohols, such as 2-butanol and isopropanol. Has very low activity with primary alcohols, such as ethanol. Under physiological conditions, the enzyme reduces aldehydes and 2-ketones to produce secondary alcohols. Is also active with acetaldehyde and propionaldehyde. 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 structure of the apo form of alcohol dehydrogenase from a single-cell eukaryotic source, Entamoeba histolytica, has been determined at 1.8 A. To date, bacterial and archeal alcohol dehydrogenases, which are biologically active as tetramers, have crystallized with tetramers in the asymmetric unit. However, the current structure has one independent dimer per asymmetric unit and the full tetramer is generated by application of the crystallographic twofold symmetry element. This structure reveals that many of the crystallization and cryoprotection components, such as cacodylate, ethylene glycol, zinc ions and acetate, have been incorporated. These crystallization solution elements are found within the molecule and at the packing interfaces as an integral part of the three-dimensional arrangements of the tetramers. In addition, an unexpected modification of aspartic acid to O-carboxysulfanyl-4-oxo-L-homoserine was found at residue 245. Structure of alcohol dehydrogenase from Entamoeba histolytica.,Shimon LJ, Goihberg E, Peretz M, Burstein Y, Frolow F Acta Crystallogr D Biol Crystallogr. 2006 May;62(Pt 5):541-7. Epub 2006, Apr 19. PMID:16627948 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Alcohol dehydrogenase Alcohol dehydrogenase 3D structures

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