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. 2013 Apr 2;288(21):14917–14925. doi: 10.1074/jbc.M113.454496

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© 2013 by The American Society for Biochemistry and Molecular Biology, Inc.

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FIGURE 3. — Residue Glu-130 exhibits flexible coordination to site B and site C iron. A, monomer A of PmFTN soaked in iron for 4 h. Glu-130 is coordinating to site C and may also interact with the site B iron atom. B, monomer B of PmFTN soaked in iron overnight. Glu-130 is coordinating to site B and may also interact with the site C iron atom. C, monomer C of PmFTN soaked in zinc for 1 h. Glu-130 is coordinating to the site B iron or site C iron atom. Molecular representations and the color scheme are the same as in Fig. 2. Bond lengths are in Å.