Evidence map›Paper›PMID 41278746›Full record

ArticlebioRxiv : the preprint server for biology2025

Alternative splicing of synaptotagmin 7 regulates oligomerization and short-term synaptic plasticity.

Nikunj Mehta, Devin T Larson, Raghava Jagadeesh Salaka, Mitch Wozney, Smrithika Subramani, Shweta Mishra, Simi Kaur, Avani Jain, Edwin R Chapman

Abstract readPreprint
In one paragraph

Article in bioRxiv : the preprint server for biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Nikunj MehtaDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0000-0001-7282-0428
Devin T LarsonDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0000-0002-5727-9167
Raghava Jagadeesh SalakaDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0000-0002-1359-3875
Mitch WozneyDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0009-0002-0836-8646
Smrithika SubramaniDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0009-0008-6194-0203
Shweta MishraDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0000-0001-7947-007X
Simi KaurDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0000-0003-1536-5996
Avani JainWisconsin School of Business, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0009-0002-5162-1213
Edwin R ChapmanDepartment of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States.ORCID 0000-0001-9787-8140

Funding

UM1HG006348: Cas9 Genome Integrity Supplemental ProposalUM1HG006348 · NHGRI · BAYLOR COLLEGE OF MEDICINE · PI Jason D. Heaney, Chih-Wei Logan Hsu · 2016 to 2026
$47.5M
Synaptotagmin C2B Domain as a Ca2+ Sensing ModuleR01MH061876 · NIMH · UNIVERSITY OF WISCONSIN-MADISON · PI Edwin R Chapman · 2002 to 2026
$7.7M
Fusion pore structure and dynamicsR35NS136306 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI Edwin R Chapman · 2025 to 2026
$1.3M
NHGRI NIH HHS UM1 HG006348NIMH NIH HHS R01 MH061876NINDS NIH HHS R35 NS136306
6 · The paper itself

Abstract

Synaptic plasticity is crucial for learning and memory. The presynaptic calcium sensor synaptotagmin 7 (syt7) regulates aspects of short-term plasticity (STP), but the underlying mechanisms remain unclear. Here, we show that alternative splicing of the syt7 juxtamembrane linker acts as a molecular switch at both biochemical and functional levels. The α and β variants undergo liquid-liquid phase separation to form condensates, while the γ variant forms aggregates. Using iGluSnFR imaging, we found that when expressed at equal levels, these three isoforms also diverge regarding their abilities to regulate two key aspects of STP: paired-pulse facilitation and synaptic depression. Further, MINFLUX super resolution microscopy demonstrated that syt7 forms clusters in the active zone, well-positioned to directly control synaptic vesicle dynamics. Thus, alternative splicing might fine-tune STP by differentially impacting syt7 oligomerization.

Indexed as

active zoneaggregationalternative splicingglutamate sensingiGluSnFRliquid-liquid phase separationMINFLUX super resolution microscopypaired-pulse facilitationShort-term plasticitysynaptic depressionsynaptotagmin

Identifiers

PMID41278746
PMCPMC12636619

What OpenQuestion holds

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Registered trials

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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 OpenQuestion graph.