Expression, purification and preliminary crystallographic characterization of FlhF fromBacillus subtilis
- 28 April 2007
- journal article
- Published by International Union of Crystallography (IUCr) in Acta Crystallographica Section F Structural Biology and Crystallization Communications
- Vol. 63 (5) , 449-451
- https://doi.org/10.1107/s1744309107020180
Abstract
The gram-positive bacterium Bacillus subtilis contains three proteins belonging to the signal recognition particle (SRP) type GTPase family. The well characterized signal sequence-binding protein SRP54 and the SRP receptor protein FtsY are universally conserved components of the SRP system of protein transport. The third member, FlhF, has been implicated in the placement and assembly of polar flagella. This article describes the overexpression and preliminary X-ray crystallographic analysis of an FlhF fragment that corresponds to the well characterized GTPase domains in SRP54 and FtsY. Three crystal forms are reported with either GDP or GMPPNP and diffract to a resolution of about 3 A.Keywords
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