ArticleeLife2021
Sec17/Sec18 can support membrane fusion without help from completion of SNARE zippering.
Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 37 citations in OpenAlex.
- Functional assembly of the Qc-SNARE with Sec18 and Sec17 on membranes.Molecular biology of the cell · 2026Article
- Regulation of vacuole fusion in stomata by dephosphorylation of the HOPS subunit VPS39.The Plant journal : for cell and molecular biology · 2025Article
- SNARE disassembly requires Sec18/NSF side loading.Nature structural & molecular biology · 2025Article
- Sec18 ATP hydrolysis selectively releases Sec17 fromMolecular biology of the cell · 2025Article
- SNARE disassembly requires Sec18/NSF side-loading.bioRxiv : the preprint server for biology · 2025Article
- Genetic suppression interactions are highly conserved across genetically diverse yeast isolates.G3 (Bethesda, Md.) · 2025Article
- Exocyst stimulates multiple steps of exocytic SNARE complex assembly and vesicle fusion.Nature structural & molecular biology · 2025Article
- After their membrane assembly, Sec18 (NSF) and Sec17 (SNAP) promote membrane fusion.Molecular biology of the cell · 2024Article
- Membrane fusion reactions limited by defective SNARE zippering or stiff lipid fatty acyl composition have distinct requirements for Sec17, Sec18, and adenine nucleotide.bioRxiv : the preprint server for biology · 2024Article
- Sec18 binds the tethering/SM complex HOPS to engage the Qc-SNARE for membrane fusion.Molecular biology of the cell · 2024Article
- Model-based inference of a dual role for HOPS in regulating guard cell vacuole fusion.In silico plants · 2024Article
- Model-based inference of a plant-specific dual role for HOPS in regulating guard cell vacuole fusion.bioRxiv : the preprint server for biology · 2023Article
- MARCKS Effector Domain, a reversible lipid ligand, illuminates late stages of membrane fusion.Molecular biology of the cell · 2023Article
- Efficient fusion requires a membrane anchor on the vacuolar Qa-SNARE.Molecular biology of the cell · 2023Article
- PI3P regulates multiple stages of membrane fusion.Molecular biology of the cell · 2023Article
- Sec18 supports membrane fusion by promoting Sec17 membrane association.Molecular biology of the cell · 2022Article
- CNS myelination requires VAMP2/3-mediated membrane expansion in oligodendrocytes.Nature communications · 2022Article
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- Molecular Mechanisms Underlying Neurotransmitter Release.Annual review of biophysics · 2022Review
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Membrane fusion requires R-, Qa-, Qb-, and Qc-family SNAREs that zipper into RQaQbQc coiled coils, driven by the sequestration of apolar amino acids. Zippering has been thought to provide all the force driving fusion. Sec17/αSNAP can form an oligomeric assembly with SNAREs with the Sec17 C-terminus bound to Sec18/NSF, the central region bound to SNAREs, and a crucial apolar loop near the N-terminus poised to insert into membranes. We now report that Sec17 and Sec18 can drive robust fusion without requiring zippering completion. Zippering-driven fusion is blocked by deleting the C-terminal quarter of any Q-SNARE domain or by replacing the apolar amino acids of the Qa-SNARE that face the center of the 4-SNARE coiled coils with polar residues. These blocks, singly or combined, are bypassed by Sec17 and Sec18, and SNARE-dependent fusion is restored without help from completing zippering.
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Registered trials
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.