part of organelle intracellular membraneless organelle postsynaptic specialization, intracellular component GO:0099091 cellular_component A network of proteins adjacent to the postsynaptic membrane. Its major components include the proteins that spatially and functionally organize neurotransmitter receptors in the adjacent membrane, such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components. postsynaptic specialization