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. 2015 Jul 1;6:648. doi: 10.3389/fmicb.2015.00648

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Copyright © 2015 Fernandez-López, Ruiz, de la Cruz and Moncalián.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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MerR family. (A) MerR structure. The structure of the MerR member MtaN bound to DNA (1R8D, Newberry and Brennan, 2004) illustrates MerR family binding to its operator. MtaN monomers are shown in green and blue, respectively, while DNA is shown in orange. The inset shows the two cysteines of CueR (1Q05, Changela et al., 2003) involved in Cu (I) coordination. (B) MerR family alignment. The alignment of representative members of MerR family is shown. Residues involved in metal coordination are highlighted in yellow. DNA binding α2 is shown in green.