The alpha-latrotoxin mutant LTXN4C enhances spontaneous and evoked transmitter release in CA3 pyramidal neurons.

Abstract

Alpha-latrotoxin (LTX) stimulates vesicular exocytosis by at least two mechanisms that include (1) receptor binding-stimulation and (2) membrane pore formation. Here, we use the toxin mutant LTX(N4C) to selectively study the receptor-mediated actions of LTX. LTX(N4C) binds to both LTX receptors (latrophilin and neurexin) and greatly enhances the frequency… (More)

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