GABAB receptors and synaptic modulation

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Abstract
GABAB receptors modulate transmitter release and postsynaptic membrane potential at various types of central synapses. They function as heterodimers of two related seven-transmembrane domain receptor subunits. Trafficking, activation and signalling of GABAB receptors are regulated both by allosteric interactions between the subunits and by the binding of additional proteins. Recent studies have shed light on the roles of GABAB receptors in plasticity processes at excitatory synapses. This review summarizes our knowledge of the localization, structure and function of GABAB receptors in the central nervous system and their use as drug targets for neurological and psychiatric disorders.