GABABreceptors

GABAB receptors are a class of G protein-coupled receptors that are activated by the neurotransmitter gamma-aminobutyric acid (GABA), which is the main inhibitory neurotransmitter in the central nervous system. GABAB receptors are found in various regions of the brain, including the cerebral cortex, hippocampus, and cerebellum, as well as in peripheral tissues, including the heart, lung, and gastrointestinal tract.