title: Crystallization and preliminary X-ray crystallographic study of HP1043, a Helicobacter pylori orphan response regulator.
abstract: The HP1043 protein of Helicobacter pylori is related to the two-component system that regulates prokaryotic transcription in response to environmental changes. The HP1043 gene encodes an orphan response regulator (RR). The N-terminal domain of HP1043 (HP1043N) was purified by affinity-column chromatography. The purified protein was crystallized by hanging drop vapor diffusion at 293 K. The crystal belongs to primitive orthorhombic space group P2(1)2(1)2 with cell dimensions of a=89.0, b=41.3, and c=31.7 A. Assuming the presence of one molecule per asymmetric unit, the solvent content was estimated to be about 45%. A complete data set was collected at 1.8 A resolution.
authors.affiliation: Department of Biology, Yonsei University, Seoul 120-749, Korea.
authors.forename: Hyang Mi
authors.initials: HM
authors.lastname: Lee
authors.forename: Eunmi
authors.initials: E
authors.lastname: Hong
authors.forename: Byoung-Young
authors.initials: BY
authors.lastname: Jeon
authors.forename: Dong-Uk
authors.initials: DU
authors.lastname: Kim
authors.forename: Jung-Sue
authors.initials: JS
authors.lastname: Byun
authors.forename: Weontae
authors.initials: W
authors.lastname: Lee
authors.forename: Hyun-Soo
authors.initials: HS
authors.lastname: Cho
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry* / Q000302:isolation & purification*; D003460:Crystallization; D018360:Crystallography, X-Ray; D016480:Helicobacter pylori / Q000737:chemistry*; D014157:Transcription Factors / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D001426:Bacterial Proteins; C501059:HP1043 protein, Helicobacter pylori; D014157:Transcription Factors