title: Crystallization and preliminary X-ray analysis of the two domains of glucosamine-6-phosphate synthase from Escherichia coli.
abstract: The glutamine amidohydrolase and fructose 6-phosphate binding domains of glucosamine-6-phosphate synthase from Escherichia coli have been overexpressed, purified and crystallized for X-ray diffraction analysis. The crystals of the glutamine amidohydrolase domain belong to the orthorhombic space group P2(1)2(1)2(1) with cell dimensions a = 70.4 A, b = 82.5 A, c = 86.1 A, with two molecules in the asymmetric unit, and diffract to 1.9 A resolution. The native Patterson indicated pseudo c-face centering of the unit cell. The fructose 6-phosphate binding domain was crystallized in the hexagonal space group P6(1) or P6(5) with cell dimensions a = b = 63.5 A, c = 334.3 A and with two molecules in the asymmetric unit. Diffraction data to 2.6 A resolution have been collected.
authors.affiliation: European Molecular Biology Laboratory, c/o DESY, Hamburg, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Obmolova
authors.forename: M A
authors.initials: MA
authors.lastname: Badet-Denisot
authors.forename: B
authors.initials: B
authors.lastname: Badet
authors.forename: A
authors.initials: A
authors.lastname: Teplyakov
mesh_terms: D001665:Binding Sites; D003460:Crystallization; D018360:Crystallography, X-Ray; D004926:Escherichia coli / Q000201:enzymology*; D005636:Fructosephosphates / Q000378:metabolism; D005973:Glutamine / Q000378:metabolism; D005945:Glutamine-Fructose-6-Phosphate Transaminase (Isomerizing) / Q000737:chemistry*
chemical_list: D005636:Fructosephosphates; D005973:Glutamine; C027618:fructose-6-phosphate; D005945:Glutamine-Fructose-6-Phosphate Transaminase (Isomerizing)