2020
DNA-Origami-Based Fluorescence Brightness Standards for Convenient and Fast Protein Counting in Live Cells
Williams ND, Landajuela A, Kasula RK, Zhou W, Powell JT, Xi Z, Isaacs FJ, Berro J, Toomre D, Karatekin E, Lin C. DNA-Origami-Based Fluorescence Brightness Standards for Convenient and Fast Protein Counting in Live Cells. Nano Letters 2020, 20: 8890-8896. PMID: 33164530, PMCID: PMC7726105, DOI: 10.1021/acs.nanolett.0c03925.Peer-Reviewed Original ResearchConceptsCopies of proteinsBrightness standardsFluorescence microscopyProtein countingMammalian cellsFluorescent proteinCopy numberLive cellsConventional quantification techniquesBiological LaboratoryFluorescence microscopeProteinDNA origamiVersatile toolCellsBiologyCurrent quantification methodsCopiesOrganic dyes
2016
Cholesterol Increases the Openness of SNARE-Mediated Flickering Fusion Pores
Stratton BS, Warner JM, Wu Z, Nikolaus J, Wei G, Wagnon E, Baddeley D, Karatekin E, O’Shaughnessy B. Cholesterol Increases the Openness of SNARE-Mediated Flickering Fusion Pores. Biophysical Journal 2016, 110: 1538-1550. PMID: 27074679, PMCID: PMC4833774, DOI: 10.1016/j.bpj.2016.02.019.Peer-Reviewed Original ResearchMeSH KeywordsCholesterolKineticsMembrane FusionMicroscopy, FluorescenceModels, MolecularProtein ConformationSNARE ProteinsUnilamellar LiposomesConceptsT-SNAREsFusion poreSoluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteinsLipid bilayer propertiesFactor attachment protein receptor proteinsN-ethylmaleimide-sensitive factor attachment protein receptor proteinsTotal internal reflection fluorescence microscopyCognate t-SNAREsFusion pore dynamicsPhysiological cholesterol levelsProtein receptor proteinsFlickering fusion poresReflection fluorescence microscopyIndividual fusion eventsV-SNAREBilayer propertiesFusion eventsPore flickeringReceptor proteinFluorescence microscopySmall unilamellar vesiclesLipid compositionFusion siteSnareExocytotic release
2003
Line Thermodynamics: Adsorption at a Membrane Edge
Puech P, Borghi N, Karatekin E, Brochard-Wyart F. Line Thermodynamics: Adsorption at a Membrane Edge. Physical Review Letters 2003, 90: 128304. PMID: 12688911, DOI: 10.1103/physrevlett.90.128304.Peer-Reviewed Original Research