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. Author manuscript; available in PMC: 2011 Sep 15.
Published in final edited form as: J Am Chem Soc. 2010 Sep 15;132(36):12612–12618. doi: 10.1021/ja1019657

Figure 5.

Figure 5

Structural models of isolated FeVco (A) and FeMoco (B) in NMF. The structural models were adapted from the crystallographic coordinates of the MoFe protein2 but modified for distances on the basis of the EXAFS fits. The atoms are colored as follows: V, plum, Mo, orange; Fe, purple; S, lime; X (C, N or O), light gray; O, red; C, green; N, blue. The models reflect the EXAFS-derived coordination numbers of solvent molecules rather than the actual binding sites of these molecules.