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Neurotransmitter Release Machinery

Molecular classification
Multi-protein complex
01

Overview

The neurotransmitter release machinery refers to the highly specialized molecular system responsible for the exocytosis of neurotransmitters from presynaptic neurons into the synaptic cleft, enabling communication between neurons or between neurons and other cell types. This process is fundamental to synaptic transmission and underlies all neural network activity. It involves vesicle docking & priming, calcium triggering, SNARE complex formation, membrane fusion, neurotransmitter release, and termination & recycling. Key components include SNAREs (syntaxin-1, SNAP25, VAMP/synaptobrevin), synaptotagmin, complexin, Munc18/Munc13, and RIM/RIM-BP. Disruption of this machinery leads to neurological disorders.

02

Mechanism of action

Cleavage of SNARE proteins, disruption of vesicle fusion

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Biological functions

Neurotransmitter releaseSynaptic transmissionMembrane fusionCalcium signaling
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Disease associations

EpilepsyIntellectual disabilityNeurological disorders
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Safety considerations

Neurotoxicity associated with complete block of neurotransmitter releasePotential for off-target effects due to the involvement of multiple proteins
06

Interacting drugs

Botulinum toxin

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