Evidence map›Paper›PMID 23300284›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Fusion pore formation and expansion induced by Ca2+ and synaptotagmin 1.

Ying Lai, Jiajie Diao, Yanxin Liu, Yuji Ishitsuka, Zengliu Su, Klaus Schulten, Taekjip Ha, Yeon-Kyun Shin

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
5.7field-weighted citation impact, top 3% of its field
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

66 citing papers in PubMed, 103 citations in OpenAlex.

  1. Article
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  4. Molecular Dynamics Simulation for Membrane Fusion.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
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  10. Review
  11. Review
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  13. Article
  14. Article
  15. Function of Drosophila Synaptotagmins in membrane trafficking at synapses.Cellular and molecular life sciences : CMLS · 2021
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

6 more citing papers are in PubMed but not listed here.

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

8 authors at 5 institutions in 3 countries.

Ying LaiDepartment of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA 50011, USA.
Jiajie Diao
Yanxin Liu
Yuji Ishitsuka
Zengliu Su
Klaus Schulten
Taekjip Ha
Yeon-Kyun Shin
University of Illinois Urbana-Champaign · USIowa State University · USKorea Institute of Science and Technology · KRSeoul National University · KRXi'an Jiaotong University · CN

Funding

Regulations of SNARE-dependent membrane fusionR01GM051290 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI SHIN, YEON-KYUN · 1999 to 2019
$5.0M
Porous Biomimetric NanocontainersR21GM074526 · NIGMS · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI HA, TAEKJIP · 2005 to 2007
$511k
Howard Hughes Medical InstituteNIGMS NIH HHS R01 GM051290NIGMS NIH HHS R21 GM074526
6 · The paper itself

Abstract

Fusion pore formation and expansion, crucial steps for neurotransmitter release and vesicle recycling in soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-dependent vesicle fusion, have not been well studied in vitro due to the lack of a reliable content-mixing fusion assay. Using methods detecting the intervesicular mixing of small and large cargoes at a single-vesicle level, we found that the neuronal SNARE complexes have the capacity to drive membrane hemifusion. However, efficient fusion pore formation and expansion require synaptotagmin 1 and Ca(2+). Real-time measurements show that pore expansion detected by content mixing of large DNA cargoes occurs much slower than initial pore formation that transmits small cargoes. Slow pore expansion perhaps provides a time window for vesicles to escape the full collapse fusion pathway via alternative mechanisms such as kiss-and-run. The results also show that complexin 1 stimulates pore expansion significantly, which could put bias between two pathways of vesicle recycling.

Indexed as

Adaptor Proteins, Vesicular TransportAnimalsBiophysical PhenomenaCalciumDNA ProbesLipid MetabolismMembrane FusionModels, BiologicalModels, MolecularMutagenesis, Site-DirectedNerve Tissue ProteinsNeuronsRatsRecombinant Fusion ProteinsSNARE ProteinsSynaptotagmin IAdaptor Proteins, Vesicular TransportCalciumcomplexin IDNA ProbesNerve Tissue ProteinsRecombinant Fusion ProteinsSNARE ProteinsSynaptotagmin ISyt1 protein, rat

Identifiers

PMID23300284
PMCPMC3557091
OpenAlexW2167912328

What OpenQuestion holds

Textmetadata
Read underepoch 390

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 OpenQuestion graph.