Multivesicular release from excitatory synapses of cultured hippocampal neurons

Gang Tong, Craig E. Jahr

Research output: Contribution to journalArticlepeer-review

148 Scopus citations


Release of neurotransmitter from presynaptic terminals occurs by exocytosis of vesicular contents into the synaptic cleft. We find that more than one quantum of transmitter can interact with the same population of postsynaptic NMDA receptors in conditions which increase the probability of transmitter release. Increasing release probability also results in proportional increases in both AMPA and NMDA receptor components of the synaptic current. These results suggest that the fraction of AMPA and NMDA receptors occupied by transmitter following the release of a single quantum is similar. Based on AMPA and NMDA receptor responses of outside-out patches to short applications of glutamate, we suggest that both receptor types may be saturated normally by synaptic release.

Original languageEnglish (US)
Pages (from-to)51-59
Number of pages9
Issue number1
StatePublished - Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • Neuroscience(all)


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