Dynamic light scattering studies of globulins from plant seeds

Dynamic light scattering studies were performed on the IIS globulins from Helianthus annuus, from Brassica napus and from Vicia faba, as well as on the 7S globulin from Phaseolus vulgaris. The results for the translational diffusion coefficients, the hydrodynamic Stokes' radii, shape parameters and the solvation of these protein molecules are discussed. It is shown that one is able to obtain realistic values for the solvation of the protein molecules by combining data from dynamic light scattering and small-angle X-ray scattering.