ArticleCell reports2021
The M domain in UNC-13 regulates the probability of neurotransmitter release.
Article in Cell reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- CaNeuroscience bulletin · 2026Article
- Two successive oligomeric Munc13 assemblies scaffold vesicle docking and SNARE assembly to support neurotransmitter release.Nature communications · 2025Article
- A specific negatively charged sequence confers intramolecular regulation on Munc13-1 function in synaptic exocytosis.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Mechanisms that regulate the C1-C2B mutual inhibition control functional switch of UNC-13.eLife · 2025Article
- Synergistic Effect of Combined Walnut Peptide and Ginseng Extracts on Memory Improvement in C57BL/6 Mice and Potential Mechanism Exploration.Foods (Basel, Switzerland) · 2023Article
- Functional Roles of UNC-13/Munc13 and UNC-18/Munc18 in Neurotransmission.Advances in neurobiology · 2023Review
- The Role of Tomosyn in the Regulation of Neurotransmitter Release.Advances in neurobiology · 2023Article
- Endogenous tagging of Unc-13 reveals nanoscale reorganization at active zones during presynaptic homeostatic potentiation.Frontiers in cellular neuroscience · 2022Article
- Protocols for electrophysiological recordings and electron microscopy atSTAR protocols · 2021Article
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Authors and funding
9 authors.
Funding
Abstract
Synapses exhibit multiple forms of short-term plasticities, which have been attributed to the heterogeneity of neurotransmitter release probability. However, the molecular mechanisms that underlie the differential release states remain to be fully elucidated. The Unc-13 proteins appear to have key roles in synaptic function through multiple regulatory domains. Here, we report that deleting the M domain in Caenorhabditis elegans UNC-13MR leads to a significant increase in release probability, revealing an inhibitory function of this domain. The inhibitory effect of this domain is eliminated when the C1 and C2B domains are absent or activated, suggesting that the M domain inhibits release probability by suppressing the activity of C1 and C2B domains. When fused directly to the MUNC2C fragment of UNC-13, the M domain greatly enhances release probability. Thus, our findings reveal a mechanism by which the UNC-13 M domain regulates synaptic transmission and provides molecular insights into the regulation of release probability.
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Registered trials
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