title: Purification, crystallization and preliminary X-ray analysis of the 3-phosphoglycerate kinase from Bacillus stearothermophilus.
abstract: As part of a programme investigating the molecular basis of thermal stability in proteins we have isolated and characterized the thermally stable 3-phosphoglycerate kinase (PGK) from Bacillus stearothermophilus NCA 1503. The B. stearothermophilus PGK has been crystallized in a form suitable for X-ray diffraction analysis. Crystals which diffract to greater than 1.8 A resolution have been grown in the presence of the nucleotide substrate, MgATP, using polyethylene glycol (PEG 600) as a precipitant. The best crystals have been obtained using "seeding" techniques and are monoclinic, space group P2(1), with cell dimensions a = 40.5 A, b = 74.0 A, c = 68.5 A and beta = 99.8 degrees.
authors.affiliation: Department of Biochemistry, School of Medical Sciences, University of Bristol, U.K.
authors.forename: G J
authors.initials: GJ
authors.lastname: Davies
authors.forename: S J
authors.initials: SJ
authors.lastname: Gamblin
authors.forename: J A
authors.initials: JA
authors.lastname: Littlechild
authors.forename: H C
authors.initials: HC
authors.lastname: Watson
mesh_terms: D003460:Crystallization; D001411:Geobacillus stearothermophilus / Q000201:enzymology*; D010735:Phosphoglycerate Kinase / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D014961:X-Ray Diffraction
chemical_list: D010735:Phosphoglycerate Kinase