The electrostatic iso-potential surfaces of Apo-CaB.

The electrostatic potential as calculated for the protein in ionic strength of 150 mM. The dielectric constant of the protein was set as ε_p = 2 and ε_w = 78. (A) 1 k_BT surface, (B) 4 k_BT surface and (C) 10 k_BT surface.