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@ARTICLE{Hoffmann:265756,
author = {Hoffmann, Christian and Rentsch, Jakob and Tsunoyama, Taka
A and Chhabra, Akshita and Aguilar Perez, Gerard and
Chowdhury, Rajdeep and Trnka, Franziska and Korobeinikov,
Aleksandr and Shaib, Ali H and Ganzella, Marcelo and
Giannone, Gregory and Rizzoli, Silvio O and Kusumi, Akihiro
and Ewers, Helge and Milovanovic, Dragomir},
title = {{S}ynapsin condensation controls synaptic vesicle
sequestering and dynamics.},
journal = {Nature Communications},
volume = {14},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {DZNE-2023-01031},
pages = {6730},
year = {2023},
abstract = {Neuronal transmission relies on the regulated secretion of
neurotransmitters, which are packed in synaptic vesicles
(SVs). Hundreds of SVs accumulate at synaptic boutons.
Despite being held together, SVs are highly mobile, so that
they can be recruited to the plasma membrane for their rapid
release during neuronal activity. However, how such
confinement of SVs corroborates with their motility remains
unclear. To bridge this gap, we employ ultrafast
single-molecule tracking (SMT) in the reconstituted system
of native SVs and in living neurons. SVs and synapsin 1, the
most highly abundant synaptic protein, form condensates with
liquid-like properties. In these condensates, synapsin 1
movement is slowed in both at short (i.e., 60-nm) and long
(i.e., several hundred-nm) ranges, suggesting that the
SV-synapsin 1 interaction raises the overall packing of the
condensate. Furthermore, two-color SMT and super-resolution
imaging in living axons demonstrate that synapsin 1 drives
the accumulation of SVs in boutons. Even the short
intrinsically-disordered fragment of synapsin 1 was
sufficient to restore the native SV motility pattern in
synapsin triple knock-out animals. Thus, synapsin 1
condensation is sufficient to guarantee reliable confinement
and motility of SVs, allowing for the formation of mesoscale
domains of SVs at synapses in vivo.},
keywords = {Animals / Synaptic Vesicles: metabolism / Synapsins:
genetics / Synapsins: metabolism / Synapses: metabolism /
Synaptic Transmission: physiology / Animals, Genetically
Modified / Synapsins (NLM Chemicals)},
cin = {AG Milovanovic},
ddc = {500},
cid = {I:(DE-2719)1813002},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pmc = {pmc:PMC10593750},
pubmed = {pmid:37872159},
doi = {10.1038/s41467-023-42372-6},
url = {https://pub.dzne.de/record/265756},
}