title: Purification, crystallization and preliminary X-ray diffraction studies of a putative UDP-N-acetyl-D-mannosamine dehydrogenase from Pyrococcus horikoshii OT3.
abstract: A putative UDP-N-acetyl-D-mannosamine dehydrogenase from Pyrococcus horikoshii OT3, an essential enzyme for polysaccharide biosynthesis, 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 1.8 A resolution has been collected and processed in space group P2(1). Assuming the presence of a dimer in the asymmetric unit, the V(M) value is calculated to be 2.3 A3 Da(-1), which is consistent with the result of a dynamic light-scattering experiment that shows a dimeric state of the protein in solution.
authors.affiliation: Advanced Protein Crystallography Research Group, RIKEN SPring-8 Center, Harima Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan.
authors.forename: Neratur K
authors.initials: NK
authors.lastname: Lokanath
authors.forename: Kudigana J
authors.initials: KJ
authors.lastname: Pampa
authors.forename: Toshimi
authors.initials: T
authors.lastname: Kamiya
authors.forename: Naoki
authors.initials: N
authors.lastname: Kunishima
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D010088:Oxidoreductases / Q000737:chemistry*; D011487:Protein Conformation; D043902:Pyrococcus horikoshii / Q000201:enzymology*
chemical_list: D010088:Oxidoreductases