ArticleNature communications2023
Synaptotagmin-7 outperforms synaptotagmin-1 to promote the formation of large, stable fusion pores via robust membrane penetration.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.
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.
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.
Who cites it
10 citing papers in PubMed, 6 citations in OpenAlex.
- Platelets as localized conduits of TGF-β1 in the tumor microenvironment: implications for cancer progression and therapy.Human cell · 2026Review
- Electrostatics and Local Aromatic Residues Govern Lipid Binding and Membrane Penetration of Synaptotagmin C2 Domains.bioRxiv : the preprint server for biology · 2026Article
- Formation, Organization, and Maintenance of Synaptic Vesicle Pools: From Molecules to Structure and Dynamics.Advances in neurobiology · 2026Review
- Synaptotagmin-7 drives stress-induced cardiomyocyte necroptosis via the p53-Bak-mPTP axis.Theranostics · 2026Article
- Calcium-sensitive synaptotagmin 11-lipid interaction modulates exo-endocytosis.Nature communications · 2025Article
- Cryptic splicing in synaptic and membrane excitability genes links TDP-43 loss to neuronal dysfunction.bioRxiv : the preprint server for biology · 2025Article
- Using multiscale molecular dynamics simulations to explore the fusion machinery underlying neurotransmitter release.Quarterly reviews of biophysics · 2025Review
- Lipid metabolism in the adrenal gland.Frontiers in endocrinology · 2025Review
- MultiBac System-based Purification and Biophysical Characterization of Human Myosin-7a.Journal of visualized experiments : JoVE · 2024Article
- Synaptotagmin 7 C2 domains induce membrane curvature stress via electrostatic interactions and the wedge mechanism.bioRxiv : the preprint server for biology · 2024Article
Corrections and comments
- Erratum issued
Authors and funding
8 authors at 5 institutions in 3 countries.
Funding
Abstract
Synaptotagmin-1 and synaptotagmin-7 are two prominent calcium sensors that regulate exocytosis in neuronal and neuroendocrine cells. Upon binding calcium, both proteins partially penetrate lipid bilayers that bear anionic phospholipids, but the specific underlying mechanisms that enable them to trigger exocytosis remain controversial. Here, we examine the biophysical properties of these two synaptotagmin isoforms and compare their interactions with phospholipid membranes. We discover that synaptotagmin-1-membrane interactions are greatly influenced by membrane order; tight packing of phosphatidylserine inhibits binding due to impaired membrane penetration. In contrast, synaptotagmin-7 exhibits robust membrane binding and penetration activity regardless of phospholipid acyl chain structure. Thus, synaptotagmin-7 is a super-penetrator. We exploit these observations to specifically isolate and examine the role of membrane penetration in synaptotagmin function. Using nanodisc-black lipid membrane electrophysiology, we demonstrate that membrane penetration is a critical component that underlies how synaptotagmin proteins regulate reconstituted, exocytic fusion pores in response to calcium.
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What Socratic holds
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 Socratic graph.