pt. A. General methods of RGS protein analysis: Expression and post-translational modification. Assays of RGS box activity and allosteric control. Electrophysiological methods and RGS-insensitive Ga subunits. Mouse models of RGS protein action. Methods of RGS protein inhibition ; G-protein regulators of model organisms -- pt. B. The RGS protein superfamily ; Other RGS proteins