title: Crystallization and preliminary X-ray diffraction studies of a novel alcohol dehydrogenase from the hyperthermophilic archaeon Aeropyrum pernix.
abstract: A novel alcohol dehydrogenase enzyme has been cloned from the hyperthermophilic archaeon Aeropyrum pernix and overexpressed in Escherichia coli. This zinc-containing enzyme has been crystallized by the sitting-drop vapour-diffusion method using PEG 600 as precipitant. The crystals diffract to 1.5 A resolution and belong to the orthorhombic space group P2(1)2(1)2, with unit-cell parameters a = 100.7, b = 103.2, c = 67.5 A. The asymmetric unit contains two enzyme monomers. Two synchrotron data sets have been collected: one at a wavelength near the absorption edge of zinc and one at a remote wavelength. Three strong zinc-ion positions were visible in the anomalous Patterson map. Two additional weaker zinc ions have been identified by anomalous Fourier synthesis.
authors.affiliation: School of Chemistry, University of Exeter, Stocker Road, Exeter EX4 4QD, England.
authors.forename: Jodie E
authors.initials: JE
authors.lastname: Guy
authors.forename: Michail N
authors.initials: MN
authors.lastname: Isupov
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Littlechild
mesh_terms: D000426:Alcohol Dehydrogenase / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D019843:Archaeal Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D003001:Cloning, Molecular; D003460:Crystallization; D018360:Crystallography, X-Ray; D019620:Desulfurococcaceae / Q000201:enzymology*; D005583:Fourier Analysis; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D017356:Synchrotrons; D015032:Zinc / Q000737:chemistry / Q000378:metabolism
chemical_list: D019843:Archaeal Proteins; D011994:Recombinant Proteins; D000426:Alcohol Dehydrogenase; D015032:Zinc