Cell Surface Receptors and Their Signal Transduction
1. The seven transmembrane G protein–coupled receptors They are localized in the plasma membranes of cells in such a manner as to have seven transmembrane domains, with multiple extracellular and intracellular domains. This group of receptors is the most heterogeneous of the cell surface receptors and communicates with intracellular components by activating specific guanine nucleotide-…