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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Chem Rev. 2009 Oct;109(10):4644–4681. doi: 10.1021/cr900077w

Figure 9.

Figure 9

A ribbon representation of E. coli CusF highlighting the tetragonal distortion of the Met-His-Met trigonal Cu(I) plane by the indole ring of W44 which forms a classical cation-π interaction with the Cu(I) ion.230,231