Expression, purification, crystallization and preliminary X-ray characterization of two crystal forms of stationary-phase survival E protein from Campylobacter jejuni.
Acta Crystallogr Sect F Struct Biol Cryst Commun 2008;
64:213-6. [PMID:
18323612 PMCID:
PMC2374147 DOI:
10.1107/s1744309108003096]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2007] [Accepted: 01/28/2008] [Indexed: 11/10/2022]
Abstract
Survival E (SurE) protein from Campylobacter jejuni, a Gram-negative mesophile, has been overexpressed in Escherichia coli as a soluble protein, successfully purified and crystallized in two distinct crystal forms. The first form belongs to space group P2(1)2(1)2(1), with a tetramer in the asymmetric unit and unit-cell parameters a = 80.5, b = 119.0, c = 135.3 A. The second form belongs to space group C2, with unit-cell parameters a = 121.4, b = 47.1, c = 97.8 A, and contains a dimer in the asymmetric unit. Diffraction data have been collected from these crystal forms to 2.5 and 2.95 A resolution, respectively.
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