Ontology highlight
ABSTRACT:
SUBMITTER: Hoppa MB
PROVIDER: S-EPMC4283217 | biostudies-literature | 2014 Nov
REPOSITORIES: biostudies-literature
Hoppa Michael B MB Gouzer Geraldine G Armbruster Moritz M Ryan Timothy A TA
Neuron 20141030 4
The steep dependence of exocytosis on Ca(2+) entry at nerve terminals implies that voltage control of both Ca(2+) channel opening and the driving force for Ca(2+) entry are powerful levers in sculpting synaptic efficacy. Using fast, genetically encoded voltage indicators in dissociated primary neurons, we show that at small nerve terminals K(+) channels constrain the peak voltage of the presynaptic action potential (APSYN) to values much lower than those at cell somas. This key APSYN property ad ...[more]