title: Cloning, high-level expression, purification and crystallization of peptide deformylase from Leptospira interrogans.
abstract: A new peptide deformylase (PDF; EC 3.5.1.27) gene from Leptospira interrogans was identified and cloned into expression plasmid pET22b(+) and was highly expressed in Escherichia coli BL21(DE3). With DEAE-Sepharose anion-exchange chromatography followed by Superdex G-75 size-exclusion chromatography, 60 mg of PDF from L. interrogans was purified from 1 l of cell culture. Crystallization screening of the purified enzyme resulted in two crystal forms, from one of which a 3 A resolution X-ray diffraction data set has been collected.
authors.affiliation: School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
authors.forename: Yikun
authors.initials: Y
authors.lastname: Li
authors.forename: Shuangxi
authors.initials: S
authors.lastname: Ren
authors.forename: Weimin
authors.initials: W
authors.lastname: Gong
mesh_terms: D000581:Amidohydrolases; D000595:Amino Acid Sequence; D000626:Aminopeptidases / Q000737:chemistry* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism*; D003001:Cloning, Molecular; D018360:Crystallography, X-Ray; D007921:Leptospira interrogans / Q000201:enzymology*; D008969:Molecular Sequence Data; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D017386:Sequence Homology, Amino Acid
chemical_list: D011994:Recombinant Proteins; D000626:Aminopeptidases; D000581:Amidohydrolases; C084507:peptide deformylase