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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Biochim Biophys Acta. 2011 Feb 21;1814(11):1534–1547. doi: 10.1016/j.bbapap.2011.02.003

Figure 10.

Figure 10

(A) The overall topology of dimeric H220K-E1, including the cofactor binding site and the putative [2Fe-2S]-binding loop. The cofactor PLP is shown in spheres since H220K-E1 has PLP in the active site. (B) The anomalous map (sigma at 5) shows strong Fe peak near the 253–268 loop region. The distance of C192 and C193 is 22–30 Å away from the main [Fe-S] coordinating loop. Hence, the fourth ligand is more likely H278. See 3.2.3 for details.