Purification, crystallization and preliminary X-ray crystallographic analysis of the archaeal phosphoglycerate mutase PH0037 from Pyrococcus horikoshii OT3.
Phosphoglycerate mutases catalyze the interconversion of 2-phosphoglycerate and 3-phosphoglycerate in glycolysis and gluconeogenesis pathways. The archaeal phosphoglycerate mutase PH0037 from Pyrococcus horikoshii OT3 has been overexpressed in Escherichia coli and purified. Crystals were obtained using the oil-microbatch method at 291 K. A native data set extending to a resolution of 2.2 angstroms has been collected and processed in space group R32. Assuming the presence of a dimer in the asymmetric unit, the V(M) value is calculated to be 3.0 angstroms3 Da(-1), consistent with the dynamic light-scattering experiment result, which shows a dimeric state of the protein in solution. Molecular-replacement trials using the crystal structure of Bacilllus stearothermophilus phosphoglycerate mutase as a search model did not provide a satisfactory solution, indicating substantially different structures of these two phophoglycerate mutases.
Lokanath
Neratur K
NK
Advanced Protein Crystallography Research Group, RIKEN SPring-8 Center, Harima Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan.
Kunishima
Naoki
N
D019843:Archaeal Proteins / Q000737:chemistry* / Q000302:isolation & purification; D003001:Cloning, Molecular; D003460:Crystallization; D018360:Crystallography, X-Ray; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics; D010736:Phosphoglycerate Mutase / Q000737:chemistry* / Q000302:isolation & purification; D011487:Protein Conformation; D043902:Pyrococcus horikoshii / Q000201:enzymology*; D011994:Recombinant Proteins / Q000737:chemistry / Q000302:isolation & purification
D019843:Archaeal Proteins; D011994:Recombinant Proteins; D010736:Phosphoglycerate Mutase