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  • Title: Overproduction, purification and preliminary X-ray diffraction analysis of YncE, an iron-regulated Sec-dependent periplasmic protein from Escherichia coli.
    Author: Baba-Dikwa A, Thompson D, Spencer NJ, Andrews SC, Watson KA.
    Journal: Acta Crystallogr Sect F Struct Biol Cryst Commun; 2008 Oct 01; 64(Pt 10):966-9. PubMed ID: 18931447.
    Abstract:
    The yncE gene of Escherichia coli encodes a predicted periplasmic protein of unknown function. The gene is de-repressed under iron restriction through the action of the global iron regulator Fur. This suggests a role in iron acquisition, which is supported by the presence of the adjacent yncD gene encoding a potential TonB-dependent outer-membrane transporter. Here, the preliminary crystallographic structure of YncE is reported, revealing that it consists of a seven-bladed beta-propeller which resembles the corresponding domain of the ;surface-layer protein' of Methanosarcina mazei. A full structure determination is under way in order to provide insight into the function of this protein.
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