2019
The Functionally Important N‑Terminal Half of Fission Yeast Mid1p Anillin Is Intrinsically Disordered and Undergoes Phase Separation
Chatterjee M, Pollard TD. The Functionally Important N‑Terminal Half of Fission Yeast Mid1p Anillin Is Intrinsically Disordered and Undergoes Phase Separation. Biochemistry 2019, 58: 3031-3041. PMID: 31243991, PMCID: PMC7336169, DOI: 10.1021/acs.biochem.9b00217.Peer-Reviewed Original ResearchConceptsN-terminal halfFission yeast Schizosaccharomyces pombeYeast Schizosaccharomyces pombeC-terminal halfFull-length proteinSchizosaccharomyces pombeStructure prediction toolsPH domainScaffold proteinInsect cellsAnimal cellsContractile ringMyosin IIOrganizing centerAnillinMid1pProteinHydrodynamic measurementsPombeCytokinesisUndergoes phase separationCellsFungalPrediction tools
2018
Conformational changes in Arp2/3 complex induced by ATP, WASp-VCA, and actin filaments
Espinoza-Sanchez S, Metskas LA, Chou SZ, Rhoades E, Pollard TD. Conformational changes in Arp2/3 complex induced by ATP, WASp-VCA, and actin filaments. Proceedings Of The National Academy Of Sciences Of The United States Of America 2018, 115: e8642-e8651. PMID: 30150414, PMCID: PMC6140485, DOI: 10.1073/pnas.1717594115.Peer-Reviewed Original Research
2016
Molecular organization of cytokinesis nodes and contractile rings by super-resolution fluorescence microscopy of live fission yeast
Laplante C, Huang F, Tebbs IR, Bewersdorf J, Pollard TD. Molecular organization of cytokinesis nodes and contractile rings by super-resolution fluorescence microscopy of live fission yeast. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: e5876-e5885. PMID: 27647921, PMCID: PMC5056082, DOI: 10.1073/pnas.1608252113.Peer-Reviewed Original ResearchConceptsFluorescence photoactivation localization microscopyContractile ringLive fission yeast cellsLive fission yeastFission yeast cellsCytokinetic contractile ringSuper-resolution fluorescence microscopyCytokinesis nodesPhotoactivation localization microscopyFission yeastFormin Cdc12pActin networkIQ motifPlasma membraneCytokinesisConstituent proteinsMyosin-II tailYeast cellsActin ringsActin strandsAssembly precursorsDiscrete structural unitsFluorescence microscopyMolecular organizationProteinAvoiding artefacts when counting polymerized actin in live cells with LifeAct fused to fluorescent proteins
Courtemanche N, Pollard TD, Chen Q. Avoiding artefacts when counting polymerized actin in live cells with LifeAct fused to fluorescent proteins. Nature Cell Biology 2016, 18: 676-683. PMID: 27159499, PMCID: PMC5509211, DOI: 10.1038/ncb3351.Peer-Reviewed Original Research
2015
Three Myosins Contribute Uniquely to the Assembly and Constriction of the Fission Yeast Cytokinetic Contractile Ring
Laplante C, Berro J, Karatekin E, Hernandez-Leyva A, Lee R, Pollard TD. Three Myosins Contribute Uniquely to the Assembly and Constriction of the Fission Yeast Cytokinetic Contractile Ring. Current Biology 2015, 25: 1955-1965. PMID: 26144970, PMCID: PMC4526439, DOI: 10.1016/j.cub.2015.06.018.Peer-Reviewed Original ResearchConceptsContractile ringActin filamentsHeavy chain geneMyosin IIContractile ring assemblyFission yeast cellsMyosin heavy chain geneCytokinetic contractile ringConventional myosin IICytokinetic nodesMyo2Myo51Myp2Ring assemblyYeast cellsMyosin functionCytokinesisDeletion mutationsComplete assemblyMyosin VConstriction rateGenesMutationsCellsFilaments
2014
Local and global analysis of endocytic patch dynamics in fission yeast using a new “temporal superresolution” realignment method
Berro J, Pollard TD. Local and global analysis of endocytic patch dynamics in fission yeast using a new “temporal superresolution” realignment method. Molecular Biology Of The Cell 2014, 25: 3501-3514. PMID: 25143395, PMCID: PMC4230612, DOI: 10.1091/mbc.e13-01-0004.Peer-Reviewed Original ResearchConceptsFission yeastEndocytic actin patchesWild-type cellsEndocytic patchesActin patchesQuantitative microscopyActin assemblyCellular processesVesicle movementEndocytic vesiclesInterphase cellsVesicle formationMolecular mechanismsPatch dynamicsYeastCell lengthGlobal analysisNumber of patchesMicroscopy moviesCellsClathrinEndocytosisNew toolValuable toolPatchesMechanism of Cytokinetic Contractile Ring Constriction in Fission Yeast
Stachowiak MR, Laplante C, Chin HF, Guirao B, Karatekin E, Pollard TD, O’Shaughnessy B. Mechanism of Cytokinetic Contractile Ring Constriction in Fission Yeast. Developmental Cell 2014, 29: 547-561. PMID: 24914559, PMCID: PMC4137230, DOI: 10.1016/j.devcel.2014.04.021.Peer-Reviewed Original ResearchMeSH KeywordsActin CytoskeletonActomyosinComputer SimulationCytokinesisMyosin Type IIPolymerizationSchizosaccharomycesSchizosaccharomyces pombe ProteinsCytokinetic nodes in fission yeast arise from two distinct types of nodes that merge during interphase
Akamatsu M, Berro J, Pu KM, Tebbs IR, Pollard TD. Cytokinetic nodes in fission yeast arise from two distinct types of nodes that merge during interphase. Journal Of Cell Biology 2014, 204: 977-988. PMID: 24637325, PMCID: PMC3998791, DOI: 10.1083/jcb.201307174.Peer-Reviewed Original Research
2013
Actin Filament Severing by Cofilin Dismantles Actin Patches and Produces Mother Filaments for New Patches
Chen Q, Pollard TD. Actin Filament Severing by Cofilin Dismantles Actin Patches and Produces Mother Filaments for New Patches. Current Biology 2013, 23: 1154-1162. PMID: 23727096, PMCID: PMC4131202, DOI: 10.1016/j.cub.2013.05.005.Peer-Reviewed Original ResearchConceptsSites of endocytosisActin patchesWild-type cellsArp2/3 complexMother filamentActin filamentsAdaptor proteinActin polymerizationYeast cellsBranched actin filament networksEndocytic adaptor proteinActivators of Arp2/3Fission yeast cellsActin filament severingActin filament networkNew patchesEndocytic sitesQuantitative fluorescence microscopyMutant cofilinsMutant cellsNascent sitesFilament severingCofilinFilament networkEndocytosis
2011
Distinct Roles for F-BAR Proteins Cdc15p and Bzz1p in Actin Polymerization at Sites of Endocytosis in Fission Yeast
Arasada R, Pollard TD. Distinct Roles for F-BAR Proteins Cdc15p and Bzz1p in Actin Polymerization at Sites of Endocytosis in Fission Yeast. Current Biology 2011, 21: 1450-1459. PMID: 21885283, PMCID: PMC3350781, DOI: 10.1016/j.cub.2011.07.046.Peer-Reviewed Original ResearchConceptsF-BAR proteinsNucleation-promoting factorsActin patchesFission yeastArp2/3 complexActin polymerizationActin filamentsGenetic interaction experimentsSites of endocytosisPeripheral membrane proteinsActin binding proteinsClathrin-mediated endocytosisMembrane scissionYeast showSH3 domainCdc15pMembrane proteinsMembrane tubulesPlasma membraneGenetic analysisBinding proteinDistinct rolesEndocytosisProteinClathrinStructural and biochemical characterization of two binding sites for nucleation-promoting factor WASp-VCA on Arp2/3 complex
Ti SC, Jurgenson CT, Nolen BJ, Pollard TD. Structural and biochemical characterization of two binding sites for nucleation-promoting factor WASp-VCA on Arp2/3 complex. Proceedings Of The National Academy Of Sciences Of The United States Of America 2011, 108: e463-e471. PMID: 21676862, PMCID: PMC3158158, DOI: 10.1073/pnas.1100125108.Peer-Reviewed Original Research
2007
Assembly Mechanism of the Contractile Ring for Cytokinesis by Fission Yeast
Vavylonis D, Wu JQ, Hao S, O'Shaughnessy B, Pollard TD. Assembly Mechanism of the Contractile Ring for Cytokinesis by Fission Yeast. Science 2007, 319: 97-100. PMID: 18079366, DOI: 10.1126/science.1151086.Peer-Reviewed Original ResearchConceptsContractile ringActin filamentsLive fission yeast cellsIndividual daughter cellsFission yeast cellsDynamic actin filamentsFission yeastMotor protein myosinCell equatorDaughter cellsYeast cellsAssembly mechanismProtein myosinFluorescence microscopyCytokinesisMyosinFilamentsTransient connectionsCellsYeastFungiMechanismMeshwork
2003
Spatial and Temporal Pathway for Assembly and Constriction of the Contractile Ring in Fission Yeast Cytokinesis
Wu JQ, Kuhn JR, Kovar DR, Pollard TD. Spatial and Temporal Pathway for Assembly and Constriction of the Contractile Ring in Fission Yeast Cytokinesis. Developmental Cell 2003, 5: 723-734. PMID: 14602073, DOI: 10.1016/s1534-5807(03)00324-1.Peer-Reviewed Original Research