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Figure 4.
Figure 4. The coordination geometry of Cu^2+ and Cu^+ in CuBD
and comparison against the apo Type A structure. (a) The Cu^2+
binding geometry in CuBD[133-189]. The ligands are labeled (eq
and ax denote the equatorial and axial water molecules). (b) A
comparison of the Cu-binding site in the presence (atomic
coloring) and absence (grey, apo form) of the Cu^2+. (c) The
Cu^+ binding geometry in CuBD[133-189]. (d) A comparison of the
Cu-binding site in the presence (atomic coloring) and absence
(grey, apo form) of the Cu^+. All panels are in stereo view. The
orange sphere represents the Cu^2+ in (a) and (b) or Cu^+ in (c)
and (d). The red spheres are water molecules. The
2F[obs]–F[calc] electron density is shown in (a) and (c) in
blue mesh and contoured at 1σ level. All Figures were prepared
using the program PyMol (DeLano Scientific LLC, San Carlos, CA).
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