title: Crystallization and preliminary X-ray crystallographic analysis of the Rv2002 gene product from Mycobacterium tuberculosis, a beta-ketoacyl carrier protein reductase homologue.
abstract: A 260-residue protein (FabG3) encoded by the Rv2002 gene of Mycobacterium tuberculosis shows amino-acid sequence similarity to beta-ketoacyl carrier protein (ACP) reductase, FabG. A soluble mutant (I6T/V47M/T69M) was produced by the green fluorescent protein-based directed-evolution method. It was crystallized at 296 K using the hanging-drop vapour-diffusion method. The diffraction quality of the crystal improved significantly after annealing/dehydration. X-ray diffraction data were collected to 1.8 A resolution using synchrotron radiation. The crystal belongs to the space group P3(1)21 (or P3(2)21), with unit-cell parameters a = b = 70.38, c = 148.93 A. The asymmetric unit contains two subunits, with a corresponding V(M) of 1.90 A(3) Da(-1) and a solvent content of 35.3%.
authors.affiliation: Structural Proteomics Laboratory, School of Chemistry and Molecular Engineering, Seoul National University, Seoul 151-742, South Korea.
authors.forename: Jin Kuk
authors.initials: JK
authors.lastname: Yang
authors.forename: Hye-Jin
authors.initials: HJ
authors.lastname: Yoon
authors.forename: Hyung Jun
authors.initials: HJ
authors.lastname: Ahn
authors.forename: Byung Il
authors.initials: BI
authors.lastname: Lee
authors.forename: Sang Hyun
authors.initials: SH
authors.lastname: Cho
authors.forename: Geoffrey S
authors.initials: GS
authors.lastname: Waldo
authors.forename: Min S
authors.initials: MS
authors.lastname: Park
authors.forename: Se Won
authors.initials: SW
authors.lastname: Suh
mesh_terms: D064431:3-Oxoacyl-(Acyl-Carrier-Protein) Reductase; D000429:Alcohol Oxidoreductases / Q000737:chemistry* / Q000235:genetics* / Q000378:metabolism; D001426:Bacterial Proteins; D003001:Cloning, Molecular; D003460:Crystallization; D018360:Crystallography, X-Ray; D004926:Escherichia coli / Q000235:genetics; D049452:Green Fluorescent Proteins; D008164:Luminescent Proteins / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D008958:Models, Molecular; D009154:Mutation; D009169:Mycobacterium tuberculosis / Q000737:chemistry / Q000235:genetics*; D011487:Protein Conformation; D015202:Protein Engineering / Q000379:methods; D017386:Sequence Homology, Amino Acid
chemical_list: D001426:Bacterial Proteins; D008164:Luminescent Proteins; D049452:Green Fluorescent Proteins; D000429:Alcohol Oxidoreductases; D064431:3-Oxoacyl-(Acyl-Carrier-Protein) Reductase; C455287:Rv2002 protein, Mycobacterium tuberculosis