title: Crystallization and preliminary X-ray diffraction studies of L-rhamnose isomerase from Pseudomonas stutzeri.
abstract: L-Rhamnose isomerase from Pseudomonas stutzeri (P. stutzeri L-RhI) catalyzes not only the reversible isomerization of L-rhamnose to L-rhamnulose, but also isomerization between various rare aldoses and ketoses. Purified His-tagged P. stutzeri L-RhI was crystallized by the hanging-drop vapour-diffusion method. The crystals belong to the monoclinic space group P2(1), with unit-cell parameters a = 74.3, b = 104.0, c = 107.0 A, beta = 106.8 degrees . Diffraction data have been collected to 2.0 A resolution. The molecular weight of the purified P. stutzeri L-RhI with a His tag at the C-terminus was confirmed to be 47.7 kDa by MALDI-TOF mass-spectrometric analysis and the asymmetric unit is expected to contain four molecules.
authors.affiliation: Molecular Structure Research Group, Information Technology Center and Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.
authors.forename: Hiromi
authors.initials: H
authors.lastname: Yoshida
authors.forename: Poonperm
authors.initials: P
authors.lastname: Wayoon
authors.forename: Goro
authors.initials: G
authors.lastname: Takada
authors.forename: Ken
authors.initials: K
authors.lastname: Izumori
authors.forename: Shigehiro
authors.initials: S
authors.lastname: Kamitori
mesh_terms: D019747:Aldose-Ketose Isomerases / Q000737:chemistry*; D002238:Carbohydrate Epimerases / Q000737:chemistry; D003460:Crystallization / Q000379:methods; D006639:Histidine; D008970:Molecular Weight; D044223:Pseudomonas stutzeri / Q000201:enzymology*; D012210:Rhamnose; D012997:Solvents; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014961:X-Ray Diffraction
chemical_list: D012997:Solvents; D006639:Histidine; D002238:Carbohydrate Epimerases; D019747:Aldose-Ketose Isomerases; C062878:L-rhamnose isomerase; D012210:Rhamnose