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Figure 4.
Fig. 4. Structural features of the form II and III crystals.
(a) The anomalous difference Fourier maps of form II are shown
at the 3σ and 6σ levels as red and blue meshes, respectively.
Maps were calculated using the refined phases of form II (Table
1) and the amplitude of structure factors from the data sets
collected at low-remote (λ = 1.2896 Å), peak (λ = 1.2810
Å) and high-remote wavelengths (λ = 1.2569 Å) of
zinc (Table S1). (b) The binding site of form II. (c) The
binding site of form III. The structure of form I is
superimposed as a semitransparent model in gray for comparison
of (b) and (c).
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