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. Author manuscript; available in PMC: 2015 Jan 16.
Published in final edited form as: Nature. 2009 Nov 25;462(7276):1079–1082. doi: 10.1038/nature08620

Figure 1.

Figure 1

Crystal structure of rationally designed FeBMb overlays closely with minimized computer model. A) Minimized computer model of FeBMb with Zn(II) in the FeB site. B) Crystal structure of Fe(II)-FeBMb collected at Fe-edge absorption (1.7309 Å) at the Brookhaven National Synchrotron Light Source X12C beamline (Upton, NY) with 1.72 Å resolution. The Fe•••Fe distance is 4.82 Å, while the Fe-O-Fe angle is 115° (OE1 atom of E68). C) Overlay of FeBMb model (yellow) with Fe(II)-FeBMb crystal structure (cyan). In general, Fe(II) of the FeB site is represented by a green sphere; Zn(II) (grey sphere) was used to model the FeB site. A water molecule in the heme pocket is represented by a red sphere.