title: Crystallization and preliminary X-ray diffraction study of the green flavoenzyme 5-hydroxyvaleryl-CoA dehydratase/dehydrogenase from Clostridium aminovalericum.
abstract: The bifunctional flavoenzyme 5-hydroxyvaleryl-CoA dehydratase/dehydrogenase has been crystallized from solutions containing ammonium sulfate (form I) or polyethylene glycol (form II) as precipitant. In both cases, the crystals grew in the monoclinic space group C2. The unit cell dimensions for form I crystals were determined as a = 162.8 A, b = 71.8 A, c = 83.5 A, beta = 109.1 degrees; corresponding values for form II crystals were a = 161.2 A, b = 71.6 A, c = 82.2 A, beta = 109.3 degrees. In both cases most probably there are two monomers per asymmetric unit. The crystals diffract to about 2 A resolution and are rather stable in the X-ray beam.
authors.affiliation: Department of Biochemistry, University of Toronto, Ontario, Canada.
authors.forename: U
authors.initials: U
authors.lastname: Eikmanns
authors.forename: C
authors.initials: C
authors.lastname: Buta
authors.forename: W
authors.initials: W
authors.lastname: Buckel
authors.forename: E F
authors.initials: EF
authors.lastname: Pai
mesh_terms: D003013:Clostridium / Q000201:enzymology*; D018360:Crystallography, X-Ray; D005420:Flavoproteins / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D006836:Hydro-Lyases / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D009097:Multienzyme Complexes / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism
chemical_list: D005420:Flavoproteins; D009097:Multienzyme Complexes; C068850:5-hydroxyvaleryl-CoA dehydratase; D006836:Hydro-Lyases