Electrostatic potentials of three proteins (β-lactoglobulin, Bovine serum albumin, and Zn-Insulin) at pH 6. Calculated with DelPhi (a 'Nonlinear Poisson Boltzmann Solver') and displayed using UCSF Chimera. Protein charge anisotropy is a major component of both protein self-association, and interactions with bio-derived polyelectrolytes.
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