Ane Landajuela Larma
she/her/hers
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Research
Publications
2025
Vesicle docking and fusion pore modulation by the neuronal calcium sensor Synaptotagmin-1
Tsemperouli M, Cheppali S, Rivera-Molina F, Chetrit D, Landajuela A, Toomre D, Karatekin E. Vesicle docking and fusion pore modulation by the neuronal calcium sensor Synaptotagmin-1. Biophysical Journal 2025 PMID: 40010339, DOI: 10.1016/j.bpj.2025.02.013.Peer-Reviewed Original Research
2024
Vesicle docking and fusion pore modulation by the neuronal calcium sensor Synaptotagmin-1
Tsemperouli M, Cheppali S, Rivera-Molina F, Chetrit D, Landajuela A, Toomre D, Karatekin E. Vesicle docking and fusion pore modulation by the neuronal calcium sensor Synaptotagmin-1. Biophysical Journal 2024 PMID: 39719826, DOI: 10.1016/j.bpj.2024.12.023.Peer-Reviewed Original ResearchVesicle dockingSynaptotagmin-1C2 domainFusion triggeringCalcium sensor synaptotagmin 1Neuronal SNARE complexFusion pore dynamicsSensor synaptotagmin-1Domains of Syt1Neuroendocrine cell linePolybasic patchSNARE complexTriggers exocytosisFusion poreFusion eventsDense-core vesiclesSyt1Synaptic vesiclesPlasma membranePore regulationCalcium sensorNegatively charged phospholipidsBind calciumPore dynamicsCell linesCellular function of the GndA small open reading frame-encoded polypeptide during heat shock.
Mohsen JJ, Mohsen MG, Jiang K, Landajuela A, Quinto L, Isaacs FJ, Karatekin E, Slavoff SA. Cellular function of the GndA small open reading frame-encoded polypeptide during heat shock. BioRxiv 2024 PMID: 38979229, DOI: 10.1101/2024.06.29.601336.Peer-Reviewed Original ResearchDetection of membrane fission in single Bacillus subtilis cells during endospore formation with high temporal resolution
Landajuela A, Braun M, Rodrigues C, Karatekin E. Detection of membrane fission in single Bacillus subtilis cells during endospore formation with high temporal resolution. STAR Protocols 2024, 5: 102965. PMID: 38502684, PMCID: PMC10963649, DOI: 10.1016/j.xpro.2024.102965.Peer-Reviewed Original ResearchMembrane fission during bacterial spore development requires cellular inflation driven by DNA translocation
Landajuela A, Braun M, Martínez-Calvo A, Rodrigues C, Perez C, Doan T, Rudner D, Wingreen N, Karatekin E. Membrane fission during bacterial spore development requires cellular inflation driven by DNA translocation. Biophysical Journal 2024, 123: 187a-188a. DOI: 10.1016/j.bpj.2023.11.1213.Peer-Reviewed Original ResearchRapid propagation of membrane tension at retinal bipolar neuron presynaptic terminals
Perez C, Dudzinski N, Rouches M, Landajuela A, Machta B, Zenisek D, Karatekin E. Rapid propagation of membrane tension at retinal bipolar neuron presynaptic terminals. Biophysical Journal 2024, 123: 380a. DOI: 10.1016/j.bpj.2023.11.2322.Peer-Reviewed Original Research
2022
Membrane fission during bacterial spore development requires cellular inflation driven by DNA translocation
Landajuela A, Braun M, Martínez-Calvo A, Rodrigues CDA, Gomis Perez C, Doan T, Rudner DZ, Wingreen NS, Karatekin E. Membrane fission during bacterial spore development requires cellular inflation driven by DNA translocation. Current Biology 2022, 32: 4186-4200.e8. PMID: 36041438, PMCID: PMC9730832, DOI: 10.1016/j.cub.2022.08.014.Peer-Reviewed Original ResearchConceptsMother cell membraneMembrane fissionMother cellsDNA translocationMembrane tensionLarger mother cellMother cell cytoplasmCell membraneHigh membrane tensionSmaller foresporeDNA translocaseEnergy-limited conditionsForespore compartmentAsymmetric divisionEndospore formationMembrane compartmentsMembrane necksSpore developmentCell divisionMolecular basisForesporeMembrane flowBacillus subtilisCell cytoplasmFisBPolybasic Patches in Both C2 Domains of Synaptotagmin-1 Are Required for Evoked Neurotransmitter Release
Wu Z, Ma L, Courtney NA, Zhu J, Landajuela A, Zhang Y, Chapman ER, Karatekin E. Polybasic Patches in Both C2 Domains of Synaptotagmin-1 Are Required for Evoked Neurotransmitter Release. Journal Of Neuroscience 2022, 42: 5816-5829. PMID: 35701163, PMCID: PMC9337609, DOI: 10.1523/jneurosci.1385-21.2022.Peer-Reviewed Original ResearchConceptsSynaptotagmin-1C2 domainSynchronous neurotransmitter releaseSNARE proteinsPlasma membraneCalcium sensorSingle-pass transmembrane domainOptical tweezers measurementsSynaptic vesiclesAcidic lipidsNeurotransmitter releaseBind calciumCharge neutralization mutationsEvoked Neurotransmitter ReleaseReleasable vesicle poolSyt1 functionSNARE complexPolybasic regionOverall affinityTransmembrane domainMembrane bindingSingle-molecule experimentsC2A domainSynchronous releaseVesicle poolRapid propagation of membrane tension at retinal bipolar neuron presynaptic terminals
Perez C, Dudzinski NR, Rouches M, Landajuela A, Machta B, Zenisek D, Karatekin E. Rapid propagation of membrane tension at retinal bipolar neuron presynaptic terminals. Science Advances 2022, 8: eabl4411. PMID: 34985955, PMCID: PMC11580022, DOI: 10.1126/sciadv.abl4411.Peer-Reviewed Original ResearchMembrane tensionMembrane flowStimulation of exocytosisSynaptic vesicle turnoverNeuroendocrine adrenal chromaffin cellsCell divisionVesicle turnoverCellular activitiesCell migrationCell typesAdrenal chromaffin cellsChromaffin cellsGlobal decreasePresynaptic terminalsRapid propagationEndocytosisExocytosisNeuronal terminalsPhagocytosisTurnoverGradientCellsDivisionMigration
2021
FisB relies on homo-oligomerization and lipid binding to catalyze membrane fission in bacteria
Landajuela A, Braun M, Rodrigues CDA, Martínez-Calvo A, Doan T, Horenkamp F, Andronicos A, Shteyn V, Williams ND, Lin C, Wingreen NS, Rudner DZ, Karatekin E. FisB relies on homo-oligomerization and lipid binding to catalyze membrane fission in bacteria. PLOS Biology 2021, 19: e3001314. PMID: 34185788, PMCID: PMC8274934, DOI: 10.1371/journal.pbio.3001314.Peer-Reviewed Original ResearchConceptsMembrane fissionMembrane fission machineryMother cell membraneNegative-curvature lipidsMother cell cytoplasmUnique membrane topologyFission machineryMembrane scissionMembrane topologyLipid microdomainsMembrane necksFission proteinsLipid bindingMembrane curvatureFilamentous cellsBacillus subtilisFisBProtein BCell cytoplasmAcidic lipidsCell membraneCurvature sensingImmobile clustersIntrinsic abilityBacteria
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Associate Research Scientists
Nanobiology Institute, Yale University 850 West Campus Drive, ISTC 220
West Haven, CT 06516
United States
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Nanobiology Institute
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West Campus Integrative Science & Technology Center
850 West Campus Drive
West Haven, CT 06516
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203.506.0920