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Crystallization and preliminary X‐ray diffraction analysis of a fatty‐acid metabolism regulatory protein, FadR, from Bacillus halodurans

Crystallization and preliminary X‐ray diffraction analysis of a fatty‐acid metabolism regulatory... FadR is an acyl‐CoA‐dependent transcription factor which regulates genes encoding proteins involved in fatty‐acid degradation and synthesis in order to maintain lipid homeostasis. FadR from the alkaliphilic bacterium Bacillus halodurans was cloned and overexpressed in Escherichia coli. The FadR (Bh3102) protein from B. halodurans is composed of 195 amino‐acid residues with a molecular mass of 22 378 Da. Crystals were obtained by the sitting‐drop vapour‐diffusion method and diffracted to 2.05 Å resolution. FadR was crystallized at 296 K using polyethylene glycol 3350 as a precipitant. The crystal belonged to the apparent trigonal space group P3221, with unit‐cell parameters a = b = 56.34, c = 199.73 Å. The Matthews coefficient and solvent content were estimated to be 2.0 Å3 Da−1 and 39.8%, respectively, assuming that the asymmetric unit contained two molecules of FadR, which was subsequently confirmed by molecular‐replacement calculations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section F Wiley

Crystallization and preliminary X‐ray diffraction analysis of a fatty‐acid metabolism regulatory protein, FadR, from Bacillus halodurans

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References (18)

Publisher
Wiley
Copyright
International Union of Crystallography, 2012
ISSN
1744-3091
eISSN
1744-3091
DOI
10.1107/S1744309112029508
pmid
22869136
Publisher site
See Article on Publisher Site

Abstract

FadR is an acyl‐CoA‐dependent transcription factor which regulates genes encoding proteins involved in fatty‐acid degradation and synthesis in order to maintain lipid homeostasis. FadR from the alkaliphilic bacterium Bacillus halodurans was cloned and overexpressed in Escherichia coli. The FadR (Bh3102) protein from B. halodurans is composed of 195 amino‐acid residues with a molecular mass of 22 378 Da. Crystals were obtained by the sitting‐drop vapour‐diffusion method and diffracted to 2.05 Å resolution. FadR was crystallized at 296 K using polyethylene glycol 3350 as a precipitant. The crystal belonged to the apparent trigonal space group P3221, with unit‐cell parameters a = b = 56.34, c = 199.73 Å. The Matthews coefficient and solvent content were estimated to be 2.0 Å3 Da−1 and 39.8%, respectively, assuming that the asymmetric unit contained two molecules of FadR, which was subsequently confirmed by molecular‐replacement calculations.

Journal

Acta Crystallographica Section F – Wiley

Published: Aug 1, 2012

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