title: Are the pores of intramembrane particles of postsynaptic membrane transmitter-dependent channels?
abstract: The rat neonatal cerebellar cortex has been studied using the freeze fracture technique. In the dendritic postsynaptic membrane, intramembrane particles containing an electron-dense central area have been detected. This type of area could be a platinum aggregate within a channel which, crossing the particle, may connect the postsynaptic cytoplasm with the synaptic cleft.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology*; D002525:Cerebellar Cortex / Q000648:ultrastructure*; D003712:Dendrites / Q000648:ultrastructure; D005614:Freeze Fracturing; D007473:Ion Channels / Q000648:ultrastructure*; D051381:Rats; D011919:Rats, Inbred Strains; D013570:Synaptic Membranes / Q000648:ultrastructure*
chemical_list: D007473:Ion Channels