Crystallization and preliminary crystallographic studies of FoxE from
FoxE is a protein encoded by the foxEYZ operon of Rhodobacter ferrooxidans SW2 that is involved in FeII‐based anoxygenic photosynthesis (`photoferrotrophy'). It is thought to reside in the periplasm, where it stimulates light‐dependent FeII oxidation. It contains 259 residues, including two haem c‐binding motifs. As no three‐dimensional model is available and there is no structure with a similar sequence, crystals of FoxE were produced. They diffracted to 2.44 Å resolution using synchrotron radiation at the Fe edge. The phase problem was solved by SAD using SHELXC/D/E and the experimental maps confirmed the presence of two haems per molecule.
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Document Type: Research Article
Publication date: September 1, 2012