This volume continues the in-depth treatment of the topic and covers the RSG protein superfamily including RZ, R4, R7, R12, RhoGEF, and GRK, as well as other heterotrimeric G-protein signaling regulators. Table of Contents -RZ Subfamily -R4 Subfamily -R7 Subfamily -R12 Subfamily -RhoGEF Subfamily -GRK Subfamily -Other RGS proteins -Activators -Inhibitors -Other Modulators