2019
PACRG and FAP20 form the inner junction of axonemal doublet microtubules and regulate ciliary motility
Dymek EE, Lin J, Fu G, Porter ME, Nicastro D, Smith EF. PACRG and FAP20 form the inner junction of axonemal doublet microtubules and regulate ciliary motility. Molecular Biology Of The Cell 2019, 30: 1805-1816. PMID: 31116684, PMCID: PMC6727744, DOI: 10.1091/mbc.e19-01-0063.Peer-Reviewed Original ResearchConceptsDoublet microtubulesAxonemal doublet microtubulesCryo-electron tomographyCiliary doublet microtubulesInner junctionCiliary assemblyCoordinated ciliary beatingFAP20Ciliary componentsMotility defectsCiliary beatingPACRGMotile ciliaFunctional studiesMutant axonemesMicrotubulesB-tubuleCiliary motilityEssential roleStructural studiesAssemblyMotilityChlamydomonasMutantsAxoneme
2018
Asymmetric distribution and spatial switching of dynein activity generates ciliary motility
Lin J, Nicastro D. Asymmetric distribution and spatial switching of dynein activity generates ciliary motility. Science 2018, 360 PMID: 29700238, PMCID: PMC6640125, DOI: 10.1126/science.aar1968.Peer-Reviewed Original ResearchConceptsDynein activitySea urchin sperm cellsCryo-electron tomographyIndividual dyneinsDynein isoformsAsymmetric distributionMotile ciliaDyneinFlagellaHypothesis positsSperm cellsSmall populationCiliary motilityFlagellar bendingCoordinated activityActive stateMotilityActivity stateOrganellesIsoformsCiliaActivityThe I1 dynein-associated tether and tether head complex is a conserved regulator of ciliary motility
Fu G, Wang Q, Phan N, Urbanska P, Joachimiak E, Lin J, Wloga D, Nicastro D. The I1 dynein-associated tether and tether head complex is a conserved regulator of ciliary motility. Molecular Biology Of The Cell 2018, 29: mbc.e18-02-0142. PMID: 29514928, PMCID: PMC5921572, DOI: 10.1091/mbc.e18-02-0142.Peer-Reviewed Original ResearchConceptsI1 dyneinCiliary motilityAxonemal dynein motorsDynein motor domainMotor domainCiliary doublet microtubulesCK1 kinasesProper phosphorylationNormal ciliary motilityBiochemical approachesCryoelectron tomographyDynein motorsRegulatory mechanismsMotility regulatorMotile ciliaDoublet microtubulesRegulatorDyneinStable anchoringMotilityCiliary beatingComplexesHead complexMechanical feedbackImportant role
2012
The CSC connects three major axonemal complexes involved in dynein regulation
Heuser T, Dymek EE, Lin J, Smith EF, Nicastro D. The CSC connects three major axonemal complexes involved in dynein regulation. Molecular Biology Of The Cell 2012, 23: 3143-3155. PMID: 22740634, PMCID: PMC3418309, DOI: 10.1091/mbc.e12-05-0357.Peer-Reviewed Original ResearchConceptsNexin-dynein regulatory complexDynein regulationRadial spokesAxonemal complexCryo-electron tomographyWild-type motilityRegulatory complexFlagellar motilityDynein motorsChlamydomonas flagellaMotile ciliaStable assemblyFlagellaDifferent functionsRegulationRS1ComplexesMotilityStructural heterogeneityRS2Human healthImportant roleOrganellesHomologuesCSCCryoelectron tomography reveals doublet-specific structures and unique interactions in the I1 dynein
Heuser T, Barber CF, Lin J, Krell J, Rebesco M, Porter ME, Nicastro D. Cryoelectron tomography reveals doublet-specific structures and unique interactions in the I1 dynein. Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109: e2067-e2076. PMID: 22733763, PMCID: PMC3409752, DOI: 10.1073/pnas.1120690109.Peer-Reviewed Original ResearchConceptsI1 dyneinCryoelectron tomographyGel-based proteomicsInner arm dyneinsCiliary assemblySensory organellesSubtomogram averagingDynein activityCritical regulatorDyneinPolypeptide compositionDoublet microtubulesBiochemical comparisonMotor domainCiliary motilityFlagellar beatingUnique interactionsCiliary beatingMotilityEukaryotesAssemblyChlamydomonasSubcomplexMutantsCiliopathiesThe structural heterogeneity of radial spokes in cilia and flagella is conserved
Lin J, Heuser T, Carbajal‐González B, Song K, Nicastro D. The structural heterogeneity of radial spokes in cilia and flagella is conserved. Cytoskeleton 2012, 69: 88-100. PMID: 22170736, PMCID: PMC3307805, DOI: 10.1002/cm.21000.Peer-Reviewed Original ResearchConceptsFlagellar motilityRadial spokesNexin-dynein regulatory complexRegulatory complexFlagellar structureMost organismsThree-dimensional structureSubtomogram averagingCryoelectron tomographyDynein motorsDynein activityChlamydomonas flagellaMotile ciliaFlagellaSperm flagellaUbiquitous componentOrganismsFunctional differencesEssential roleCiliaRepeat unitsUnprecedented detailBasal partRS1Motility