Contribution of presynaptic calcium-activated potassium currents to transmitter release regulation in cultured Xenopus nerve–muscle synapses

Using Xenopus nerve–muscle co-cultures, we have examined the contribution of calcium-activated potassium (K Ca) channels to the regulation of transmitter release evoked by single action potentials. The presynaptic varicosities that form on muscle cells in these cultures were studied directly using p...

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