Calcium channel antagonist omega-conotoxin binds to intramembrane particles of isolated nerve terminals.

Abstract

Voltage-sensitive calcium channels play a key role in evoked neurotransmitter release and their distribution in presynaptic membranes can be critical for fast signalling at chemical synapses. Using a biotinylated derivative of the neuronal calcium channel antagonist, omega-conotoxin, and a combination of colloidal gold labeling and freeze-fracture… (More)

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