Physiology

G protein-coupled receptors

are intracellular membrane proteins that help to regulate movement within the cell.

are plasma membrane proteins that couple the extracellular binding of primary signaling molecules to activation of small G proteins.

are plasma membrane proteins that couple the extracellular binding of primary signaling molecules to the activation of heterotrimeric G proteins.

are intracellular proteins that couple the binding of primary messenger molecules with transcription.