this exciting volume will elucidate how gpcrs organize signal transduction and control intracellular activities. chapters written by the recognized expert in each respective topic offer state-of-the-art updates on the principles and technology, as well as stepwise protocols for methods currently applied to the analysis of protein-receptor interactions. moreover, it is important to note that over half of currently used therapeutic agents target this family of proteins, making gpcr research of great interest to the pharmaceutical industry.