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. Author manuscript; available in PMC: 2015 Sep 26.
Published in final edited form as: Science. 2014 Sep 26;345(6204):1620–1623. doi: 10.1126/science.1256679

Figure 2. Reactivated MoFe-protein (Av1-reactivated).

Figure 2

Refined structure of the FeMo-cofactor at a resolution of 1.43 Å. A) View along the Fe1-C-Mo direction. The electron density (2Fo-Fc) map is contoured at 4.0 σ and represented as blue mesh. Electron density at the S2B site is in excellent agreement with a regained sulfur. B) Same orientation as A) superimposed with the anomalous density map (green) at a resolution of 2.15 Å contoured at 4.0 σ showing the presence of anomalous density at the S2B site. Color scheme is according to Figure 1.