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. Author manuscript; available in PMC: 2013 Mar 15.
Published in final edited form as: Arch Biochem Biophys. 2011 Dec 8;519(2):210–222. doi: 10.1016/j.abb.2011.11.021

Fig. 6.

Fig. 6

Illustration of multiple binding sites in the Fur family of repressor proteins. HpFur [64], ScZur [66], ScNur [75] and BsPerR [77] illustrate both the total number of different sites as well as the different coordination complexes that have evolved in a single protein family. Metal site designations are internally consistent and labeled sites 1, 2 and 3 according to the convention established for HpFur and MtZur [65] to facilitate comparisons. Sites 1, 2 and 3 in ScZur correspond to the sites previously identified at C, M and D, respectively.