Results 1 to 10 of about 53,467 (282)

Synaptic proteins promote calcium-triggered fast transition from point contact to full fusion [PDF]

open access: yeseLife, 2012
The molecular underpinnings of synaptic vesicle fusion for fast neurotransmitter release are still unclear. Here, we used a single vesicle–vesicle system with reconstituted SNARE and synaptotagmin-1 proteoliposomes to decipher the temporal sequence of ...
Jiajie Diao   +13 more
doaj   +3 more sources

Alpha-Synuclein and Calpains Disrupt SNARE-Mediated Synaptic Vesicle Fusion During Manganese Exposure in SH-SY5Y Cells [PDF]

open access: yesCells, 2018
Synaptic vesicle fusion is mediated by an assembly of soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptors (SNAREs), composed of syntaxin 1, soluble NSF-attachment protein (SNAP)-25, and synaptobrevin-2/VAMP-2.
Can Wang   +7 more
doaj   +2 more sources

A novel synaptic vesicle fusion path in the rat cerebral cortex: the "saddle" point hypothesis. [PDF]

open access: yesPLoS ONE, 2014
We improved freeze-fracture electron microscopy to study synapses in the neuropil of the rat cerebral cortex at ∼2 nm resolution and in three-dimensions.
Guido A Zampighi   +2 more
doaj   +2 more sources

Post-tetanic potentiation lowers the energy barrier for synaptic vesicle fusion independently of Synaptotagmin-1 [PDF]

open access: yeseLife, 2020
Previously, we showed that modulation of the energy barrier for synaptic vesicle fusion boosts release rates supralinearly (Schotten, 2015). Here we show that mouse hippocampal synapses employ this principle to trigger Ca2+-dependent vesicle release and ...
Vincent Huson   +7 more
doaj   +2 more sources

Impaired docking and recycling of synaptic vesicles in inherited lysosomal sphingolipidoses [PDF]

open access: yesCell Communication and Signaling
Cognitive, memory, and learning impairments are common features of many lysosomal sphingolipidoses, yet the underlying synaptic mechanisms remain poorly defined. Here, we examined the impact of galactosylceramidase (GALC) deficiency on synaptic structure
Diego Zelada   +15 more
doaj   +2 more sources

Otoferlin acts as a Ca2+ sensor for vesicle fusion and vesicle pool replenishment at auditory hair cell ribbon synapses [PDF]

open access: yeseLife, 2017
Hearing relies on rapid, temporally precise, and sustained neurotransmitter release at the ribbon synapses of sensory cells, the inner hair cells (IHCs).
Nicolas Michalski   +19 more
doaj   +3 more sources

Endocytic protein AP180 assembly domain regulates synaptic vesicle size and release in Caenorhabditis elegans. [PDF]

open access: yesPLoS Biology
Neuronal communication relies on neurotransmitter release from synaptic vesicles. The endocytic protein AP180 is critical for efficient vesicle recycling at presynaptic terminals, and its loss impairs neurotransmission, producing reduced release ...
Yu Wang   +6 more
doaj   +2 more sources

Calcium dependence of neurotransmitter release at a high fidelity synapse

open access: yeseLife, 2021
The Ca2+-dependence of the priming, fusion, and replenishment of synaptic vesicles are fundamental parameters controlling neurotransmitter release and synaptic plasticity.
Abdelmoneim Eshra   +3 more
doaj   +1 more source

Room for Two: The Synaptophysin/Synaptobrevin Complex

open access: yesFrontiers in Synaptic Neuroscience, 2021
Synaptic vesicle release is regulated by upwards of 30 proteins at the fusion complex alone, but disruptions in any one of these components can have devastating consequences for neuronal communication. Aberrant molecular responses to calcium signaling at
Dustin N. White, Michael H. B. Stowell
doaj   +1 more source

Stochastic RNA editing of the Complexin C-terminus within single neurons regulates neurotransmitter release

open access: yesCell Reports, 2023
Summary: Neurotransmitter release requires assembly of the SNARE complex fusion machinery, with multiple SNARE-binding proteins regulating when and where synaptic vesicle fusion occurs.
Elizabeth A. Brija   +3 more
doaj   +1 more source

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