Evidence map›Paper›PMID 38980206›Full record

ArticleThe Journal of cell biology2024

Synaptotagmin-1 undergoes phase separation to regulate its calcium-sensitive oligomerization.

Min Zhu, Han Xu, Yulei Jin, Xiaoxu Kong, Bingkuan Xu, Yinghui Liu, Haijia Yu

Abstract read
In one paragraph

Article in The Journal of cell biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Min ZhuJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0009-0002-2907-7485
Han XuJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0009-0007-2982-4352
Yulei JinJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0009-0000-3566-901X
Xiaoxu KongJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0000-0003-0035-6210
Bingkuan XuJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0009-0004-7371-4132
Yinghui LiuJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0000-0002-1491-6904
Haijia YuJiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.ORCID 0000-0002-7193-8034

Funding

Jiangsu Province's Innovation Program JSSCTD202142National Natural Science Foundation of China 32270735Natural Science Foundation of Jiangsu Province BK20200036Postgraduate Research & Practice Innovation Program of Jiangsu Province KYCX22_1599Priority Academic Program Development of Jiangsu Higher Education Institutions
6 · The paper itself

Abstract

Synaptotagmin-1 (Syt1) is a calcium sensor that regulates synaptic vesicle fusion in synchronous neurotransmitter release. Syt1 interacts with negatively charged lipids and the SNARE complex to control the fusion event. However, it remains incompletely understood how Syt1 mediates Ca2+-trigged synaptic vesicle fusion. Here, we discovered that Syt1 undergoes liquid-liquid phase separation (LLPS) to form condensates both in vitro and in living cells. Syt1 condensates play a role in vesicle attachment to the PM and efficiently recruit SNAREs and complexin, which may facilitate the downstream synaptic vesicle fusion. We observed that Syt1 condensates undergo a liquid-to-gel-like phase transition, reflecting the formation of Syt1 oligomers. The phase transition can be blocked or reversed by Ca2+, confirming the essential role of Ca2+ in Syt1 oligomer disassembly. Finally, we showed that the Syt1 mutations causing Syt1-associated neurodevelopmental disorder impair the Ca2+-driven phase transition. These findings reveal that Syt1 undergoes LLPS and a Ca2+-sensitive phase transition, providing new insights into Syt1-mediated vesicle fusion.

Indexed as

CalciumSynaptic VesiclesSynaptotagmin IAdaptor Proteins, Vesicular TransportAnimalsHEK293 CellsHumansMembrane FusionMutationPhase SeparationPhase TransitionProtein MultimerizationSNARE ProteinsAdaptor Proteins, Vesicular TransportCalciumSNARE ProteinsSynaptotagmin ISYT1 protein, human

Identifiers

PMID38980206
PMCPMC11232894

What Socratic holds

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LicenceCC BY-NC-SA
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.