Approximation for dielectric geometry modified screened electrostatic gamma crystallin interactions

Abstract

We provide a useful and rapid approximation to dielectric-geometry modified, screened electrostatic interactions that is adapted to the case of a liquid-liquid phase separating protein, bovine gamma-B crystallin, for which extensive experimental and theoretical work has been published. We calibrate this model with use of experimental light scattering data on second virial coefficients, and then apply this approximation to study a space of approximately 150,000 relative orientations of neighboring pairs of gamma crystallins, at various separation distances.