title: Preparation, crystallization and preliminary X-ray analysis of protein YtlP from Bacillus subtilis.
abstract: Bacillus subtilis YtlP is a protein that is predicted to belong to the bacterial and archael 2'-5' RNA-ligase family. It contains 183 residues and two copies of the HXTX sequence motif conserved among proteins belonging to this family. In order to determine the structure of YtlP and to compare it with the paralogue YjcG and identified 2'-5' RNA ligases, the gene ytlP was amplified from B. subtilis genomic DNA and cloned into expression vector pET-21a. The soluble protein was produced in Escherichia coli, purified to homogeneity and crystals suitable for X-ray analysis were obtained. The crystal diffracted to 2.0 A and belonged to space group P2(1)2(1)2(1), with unit-cell parameters a = 34.16, b = 48.54, c = 105.75 A.
authors.affiliation: National Laboratory of Protein Engineering and Plant Genetic Engineering, Peking University, Beijing 100871, People's Republic of China.
authors.forename: Cong
authors.initials: C
authors.lastname: Liu
authors.forename: Dan
authors.initials: D
authors.lastname: Li
authors.forename: Lars
authors.initials: L
authors.lastname: Hederstedt
authors.forename: Lanfen
authors.initials: L
authors.lastname: Li
authors.forename: Yu He
authors.initials: YH
authors.lastname: Liang
authors.forename: Xiao Dong
authors.initials: XD
authors.lastname: Su
mesh_terms: D000595:Amino Acid Sequence; D001412:Bacillus subtilis / Q000737:chemistry / Q000201:enzymology*; D001426:Bacterial Proteins / Q000737:chemistry* / Q000235:genetics / Q000302:isolation & purification; D003001:Cloning, Molecular; D003460:Crystallization; D018360:Crystallography, X-Ray; D008969:Molecular Sequence Data; D011118:Polynucleotide Ligases / Q000737:chemistry* / Q000235:genetics / Q000302:isolation & purification; D016415:Sequence Alignment
chemical_list: D001426:Bacterial Proteins; D011118:Polynucleotide Ligases