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Title: Crystallization and preliminary X-ray analysis of CrgA, a LysR-type transcriptional regulator from pathogenic Neisseria meningitidis MC58
Authors: Sainsbury, S
Ren, J
Saunders, NJ
Stuart, DI
Owens, RJ
Keywords: CrgA;Neisseria meningitidis;LysR-type regulators
Issue Date: 2008
Publisher: International Union of Crystallography
Citation: Acta Crystallographica Section F: Structural Biology and Crystallization Communications, 64(Pt 9): 797 - 801, Sep 2008
Abstract: Although LysR-type regulators (LTTRs) represent the largest family of transcriptional regulators in bacteria, the full-length structure of only one annotated LTTR (CbnR) has been deposited in the PDB. CrgA, a LTTR from pathogenic Neisseria meningitidis MC58, which is up-regulated upon bacterial cell contact with human epithelial cells, has been cloned, purified and crystallized. Crystals of full-length CrgA were obtained after buffer screening with a thermal shift assay and concentration with 0.2 M NDSB-256. Data were collected from two crystal forms of full-length CrgA belonging to space groups P2(1)2(1)2(1) and P2(1), diffracting to 3.0 and 3.8 A resolution and consistent with the presence of between six and ten and between ten and 20 copies of CrgA in the asymmetric unit, respectively. In addition, diffraction data were collected to 2.3 A resolution from the selenomethionine derivative of the regulatory domain of CrgA. The crystals belonged to space group P2(1) and contained two molecules in the asymmetric unit.
Description: Copyright @ 2008 International Union of Crystallography
ISSN: 1744-3091
Appears in Collections:Biological Sciences
Dept of Life Sciences Research Papers

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