2024
Quantitative single-molecule analysis of assembly and Ca2+-dependent disassembly of synaptotagmin oligomers on lipid bilayers
Li F, Coleman J, Redondo-Morata L, Kalyana Sundaram R, Stroeva E, Rothman J, Pincet F. Quantitative single-molecule analysis of assembly and Ca2+-dependent disassembly of synaptotagmin oligomers on lipid bilayers. Communications Biology 2024, 7: 1608. PMID: 39627539, PMCID: PMC11615320, DOI: 10.1038/s42003-024-07317-9.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCalciumLipid BilayersProtein MultimerizationSingle Molecule ImagingSynaptotagmin IConceptsSyt-1Lipid bilayerRing-like oligomersCa2+-evoked releaseSynaptotagmin-1Single-molecule imaging methodsSynaptic vesiclesBiochemical evidencePhysiological requirementsOligomerizationAnalysis of assembliesBilayerOligomersCa2+LipidAssemblyCa2Classes of oligomersMutationsVesiclesDisassemblyEvoked release
2019
Synaptotagmin oligomers are necessary and can be sufficient to form a Ca2+‐sensitive fusion clamp
Ramakrishnan S, Bera M, Coleman J, Krishnakumar SS, Pincet F, Rothman JE. Synaptotagmin oligomers are necessary and can be sufficient to form a Ca2+‐sensitive fusion clamp. FEBS Letters 2019, 593: 154-162. PMID: 30570144, PMCID: PMC6349546, DOI: 10.1002/1873-3468.13317.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCalciumCryoelectron MicroscopyElectron Microscope TomographyMembrane FusionMutationProtein MultimerizationSNARE ProteinsSynaptic VesiclesSynaptotagmin I
2018
Synaptotagmin oligomerization is essential for calcium control of regulated exocytosis
Bello OD, Jouannot O, Chaudhuri A, Stroeva E, Coleman J, Volynski KE, Rothman JE, Krishnakumar SS. Synaptotagmin oligomerization is essential for calcium control of regulated exocytosis. Proceedings Of The National Academy Of Sciences Of The United States Of America 2018, 115: e7624-e7631. PMID: 30038018, PMCID: PMC6094142, DOI: 10.1073/pnas.1808792115.Peer-Reviewed Original ResearchConceptsRegulated exocytosisFusion machineryC2 domain proteinsCore fusion machinerySingle vesicle exocytosisConstitutive exocytosisPrincipal CaVesicular releaseMolecular mechanismsSensitive oligomersExocytosisPheochromocytoma cellsSelective disruptionSpontaneous fusionCritical roleMachineryOligomerizationDirect activationCentral componentStructural featuresConsiderable insightCalcium controlPHluorinSyt1SYT
2016
Ring-like oligomers of Synaptotagmins and related C2 domain proteins
Zanetti MN, Bello OD, Wang J, Coleman J, Cai Y, Sindelar CV, Rothman JE, Krishnakumar SS. Ring-like oligomers of Synaptotagmins and related C2 domain proteins. ELife 2016, 5: e17262. PMID: 27434670, PMCID: PMC4977156, DOI: 10.7554/elife.17262.Peer-Reviewed Original Research