Evidence map›Paper›PMID 39242980›Full record

ArticleNature structural & molecular biology2025

Exocyst stimulates multiple steps of exocytic SNARE complex assembly and vesicle fusion.

Chanwoo Lee, Dante Lepore, Seung-Hak Lee, Tae Gyun Kim, Natasha Buwa, Jongchan Lee, Mary Munson, Tae-Young Yoon

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Preassembly and independent trafficking of the exocyst complex inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. The autophagy-specific exocyst subcomplex contributes to phagophore assembly site integrity by promoting phagophore expansion.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Review
  8. Review
  9. Article
  10. The exocyst in context.Biochemical Society transactions · 2024
    Review
  11. Review
  12. Article
  13. Article
  14. Article
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.

Chanwoo Lee *School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea.
Dante Lepore *Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Medical School, Worcester, MA, USA.
Seung-Hak Lee *School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea.ORCID http://orcid.org/0009-0001-8715-5464
Tae Gyun Kim *School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea.ORCID http://orcid.org/0000-0001-6574-2943
Natasha BuwaDepartment of Biochemistry and Molecular Biotechnology, University of Massachusetts Medical School, Worcester, MA, USA.
Jongchan LeeSchool of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea.ORCID http://orcid.org/0009-0006-1889-469X
Mary MunsonDepartment of Biochemistry and Molecular Biotechnology, University of Massachusetts Medical School, Worcester, MA, USA. mary.munson@umassmed.edu.ORCID http://orcid.org/0000-0003-2297-8053
Tae-Young YoonSchool of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea. tyyoon@snu.ac.kr.ORCID http://orcid.org/0000-0002-5184-7725

Funding

Structure and Function of the Exocyst ComplexR01GM068803 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI MUNSON, MARY · 2005 to 2021
$7.4M
Dissecting the Molecular Mechanisms of Exocytic Vesicle Tethering and FusionR35GM148225 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI Mary Munson · 2023 to 2026
$2.7M
Elucidation of exocyst tethering function by single molecule assays and EMF32GM123704 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LEPORE, DANTE M · 2017 to 2019
$177k
NIGMS NIH HHS F32 GM123704NIGMS NIH HHS R01 GM068803NIGMS NIH HHS R35 GM148225
6 · The paper itself

Abstract

Exocyst is a large multisubunit tethering complex essential for targeting and fusion of secretory vesicles in eukaryotic cells. Although the assembled exocyst complex has been proposed to tether vesicles to the plasma membrane and activate soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) for membrane fusion, the key biochemical steps that exocyst stimulates in SNARE-mediated fusion are undetermined. Here we use a combination of single-molecule and bulk fluorescence assays to investigate the roles of purified octameric yeast exocyst complexes in a reconstituted yeast exocytic SNARE assembly and vesicle fusion system. Exocyst had stimulatory roles in multiple distinct steps ranging from SNARE protein activation to binary and ternary complex assembly. Importantly, exocyst had a downstream role in driving membrane fusion and full content mixing of vesicle lumens. Our data suggest that exocyst provides extensive chaperoning functions across the entire process of SNARE complex assembly and fusion, thereby governing exocytosis at multiple steps.

Indexed as

ExocytosisMembrane FusionSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSecretory VesiclesSNARE ProteinsVesicular Transport ProteinsSaccharomyces cerevisiae ProteinsSNARE ProteinsVesicular Transport Proteins

Identifiers

PMID39242980
PMCPMC13050244

What Socratic holds

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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.