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. 2014 Mar 4;106(5):1164–1173. doi: 10.1016/j.bpj.2014.01.033

Figure 1.

Figure 1

Molecular graphics representations of C3d-Sbi-IV complexes. (A) The two binding modes of Sbi-IV (orange and cyan) are shown bound to C3d (purple). (B and C) Open-book representations of C3d-Sbi-IV Complex 1 (B) and Complex 2 (C), illustrating electrostatic complementarity at each interface. C3d and Sbi-IV are rotated about the horizontal axis (black line) by −90° and +90°, respectively. Molecular surfaces are colored based on electrostatic potential values, with a gradient from −5 kBT/e (red) to +5 kBT/e (blue). To see this figure in color, go online.