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Cloning, expression, purification, crystallization and preliminary X-ray diffraction analysis of a ferredoxin/flavodoxin-NADP(H) oxidoreductase (Bc0385) from Bacillus cereus.


ABSTRACT: Ferredoxin/flavodoxin-NADP(H) oxidoreductases (FNRs) are key enzymes involved in catalysing electron transfer between ferredoxins/flavodoxins and NAD(P)H/NAD(P)+. In Bacillus cereus there are three genes that may encode FNRs, and the Bc0385 FNR has been cloned, overexpressed, purified and successfully crystallized in its NADPH/NADP+-free form. Diffraction data have been collected to 2.5?Å resolution from crystals belonging to the orthorhombic space group P2?2?2, with unit-cell parameters a=57.2, b=164.3, c=95.0?Å, containing two FNR molecules in the asymmetric unit. The structure of the Bc0385 FNR has been solved by molecular replacement, and is a member of the homodimeric thioredoxin reductase-like class of FNRs.

PROVIDER: S-EPMC4051536 | BioStudies |

REPOSITORIES: biostudies

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