Expression, purification, crystallization and preliminary X-ray analysis of Rv3117, a probable thiosulfate sulfurtransferase (CysA3) from Mycobacterium tuberculosis.
The gene product of open reading frame Rv3117 from Mycobacterium tuberculosis (Mtb) strain H37Rv is annotated as encoding a probable rhodanese-like thiosulfate sulfurtransferase (MtbCysA3). MtbCysA3 was expressed and purified and then crystallized using the sitting-drop vapour-diffusion method. X-ray diffraction data were collected and processed to a maximum resolution of 2.5 A. The crystals belong to the monoclinic space group P2(1), with unit-cell parameters a = 38.86, b = 91.43, c = 83.57 A, beta = 96.6 degrees . Preliminary diffraction data shows that two molecules are present in the asymmetric unit; this corresponds to a V(M) of 2.4 A(3) Da(-1).
Protein Structure and Function Group, Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
Sarah J
SJ
Witholt
Ramasamy
R
Sankaranarayanan
Craig R
CR
Garen
Maia M
MM
Cherney
Leonid T
LT
Cherney
Michael N G
MN
James
D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D022202:Chromosomes, Artificial, Bacterial; D003001:Cloning, Molecular; D003460:Crystallization; D019281:Dimerization; D008969:Molecular Sequence Data; D008970:Molecular Weight; D009169:Mycobacterium tuberculosis / Q000201:enzymology*; D017386:Sequence Homology, Amino Acid; D013884:Thiosulfate Sulfurtransferase / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism*; D014961:X-Ray Diffraction
D001426:Bacterial Proteins; D013884:Thiosulfate Sulfurtransferase