Figure 6 - full size

 

Figure 6.
Fig. 6. The molecular surface accessible for an electron donor protein. (a) The negatively and positively charged surfaces are shown in red and blue, respectively. (b) The blue, green, and gray spheres represent the type 1 Cu[N], type 1 Cu[C], and type 2 Cu, respectively. The Gln-76 and Glu-172 residues are located on the molecular surfaces of the N-terminal and C-terminal regions, respectively, which belong in the different monomers. The figure was created by using PyMOL. Surface electrostatic potential was calculated by using PyMOL APBS (http://apbs.sourceforge.net) tools.