2023
Abl2 repairs microtubules and phase separates with tubulin to promote microtubule nucleation
Duan D, Lyu W, Chai P, Ma S, Wu K, Wu C, Xiong Y, Sestan N, Zhang K, Koleske A. Abl2 repairs microtubules and phase separates with tubulin to promote microtubule nucleation. Current Biology 2023, 33: 4582-4598.e10. PMID: 37858340, PMCID: PMC10877310, DOI: 10.1016/j.cub.2023.09.018.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell MovementChlorocebus aethiopsCOS CellsMicrotubule-Associated ProteinsMicrotubulesTubulinConceptsCOS-7 cellsMT nucleationMT latticeFamily kinasesTubulin recruitmentLiquid-liquid phase separationTubulin C-terminal tailsCryo-EM analysisC-terminal tailAbl family kinasesWild-type cellsC-terminal halfRescue frequencyGenetic experimentsNeuronal morphogenesisMicrotubule nucleationSplice isoformsMicrotubule dynamicsNocodazole treatmentMolecular mechanismsAxon guidanceCell migrationDamage sitesABL2MT assemblyMicrotubule-binding-induced allostery triggers LIS1 dissociation from dynein prior to cargo transport
Ton W, Wang Y, Chai P, Beauchamp-Perez C, Flint N, Lammers L, Xiong H, Zhang K, Markus S. Microtubule-binding-induced allostery triggers LIS1 dissociation from dynein prior to cargo transport. Nature Structural & Molecular Biology 2023, 30: 1365-1379. PMID: 37322240, PMCID: PMC10590275, DOI: 10.1038/s41594-023-01010-x.Peer-Reviewed Original ResearchMeSH KeywordsDyneinsHumansMicrotubule-Associated ProteinsMicrotubulesProtein BindingSaccharomyces cerevisiaeConceptsCryo-EM structureCargo transportProtein Lis1Human dyneinDynein mutantsCytoplasmic dyneinStructural insightsDynein activityIntracellular localizationCritical regulatorDynein activationLIS1Conformational changesDyneinMotor domainMutantsBindingHigh affinityAffinityYeastMicrotubulesRegulatorRegulationTransportActivationHigh-Resolution Structural Analysis of Dyneins by Cryo-electron Microscopy
Chai P, Rao Q, Wang Y, Zhang K. High-Resolution Structural Analysis of Dyneins by Cryo-electron Microscopy. Methods In Molecular Biology 2023, 2623: 257-279. PMID: 36602691, PMCID: PMC10371436, DOI: 10.1007/978-1-0716-2958-1_16.ChaptersConceptsCryo-electron microscopyHigh-resolution structural informationLarge molecular machineHigh-resolution structuresCryo-EM approachResolution structural analysisProtein complexesStructural biologistsCellular cargoMolecular machinesDyneinDepth mechanistic understandingMolecular motorsMechanistic understandingCiliary motilityFlexible conformationIntricate architectureStructural informationMacromolecular structureForce generatorStructural analysisBiologistsSimilar structureCargoMicroscopy
2022
Multi-curve fitting and tubulin-lattice signal removal for structure determination of large microtubule-based motors
Chai P, Rao Q, Zhang K. Multi-curve fitting and tubulin-lattice signal removal for structure determination of large microtubule-based motors. Journal Of Structural Biology 2022, 214: 107897. PMID: 36089228, PMCID: PMC10321216, DOI: 10.1016/j.jsb.2022.107897.Peer-Reviewed Original ResearchCryo-EM structure of an active central apparatus
Han L, Rao Q, Yang R, Wang Y, Chai P, Xiong Y, Zhang K. Cryo-EM structure of an active central apparatus. Nature Structural & Molecular Biology 2022, 29: 472-482. PMID: 35578022, PMCID: PMC9113940, DOI: 10.1038/s41594-022-00769-9.Peer-Reviewed Original ResearchConceptsCentral apparatusDiverse cellular activitiesKinesin-like proteinCryo-EM structureArmadillo repeat proteinsCryo-electron microscopyHigh-resolution structuresEukaryotic speciesProtein subunitsMotile ciliaBridge proteinsPair of microtubulesRegulatory roleCellular activitiesProteinDynamic conformational behaviorCiliary motilityCiliaCiliary beatingStructural frameworkConformational behaviorSubunitsMicrotubulesRegulatorSpecies
2021
Structures of outer-arm dynein array on microtubule doublet reveal a motor coordination mechanism
Rao Q, Han L, Wang Y, Chai P, Kuo YW, Yang R, Hu F, Yang Y, Howard J, Zhang K. Structures of outer-arm dynein array on microtubule doublet reveal a motor coordination mechanism. Nature Structural & Molecular Biology 2021, 28: 799-810. PMID: 34556869, PMCID: PMC8500839, DOI: 10.1038/s41594-021-00656-9.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateCryoelectron MicroscopyDyneinsMicrotubulesModels, MolecularTetrahymena thermophilaConceptsOuter arm dyneinMicrotubule doubletsDistinct microtubule-binding domainsHigh-resolution structuresAction of dyneinsMicrotubule-binding domainNative tracksATP hydrolysisDynein motorsHydrolyze ATPConformational changesNucleotide cycleMotor coordination mechanismATP turnoverDyneinHead interactionsMechanical forces
2017
Cryo-EM Reveals How Human Cytoplasmic Dynein Is Auto-inhibited and Activated
Zhang K, Foster HE, Rondelet A, Lacey SE, Bahi-Buisson N, Bird AW, Carter AP. Cryo-EM Reveals How Human Cytoplasmic Dynein Is Auto-inhibited and Activated. Cell 2017, 169: 1303-1314.e18. PMID: 28602352, PMCID: PMC5473941, DOI: 10.1016/j.cell.2017.05.025.Peer-Reviewed Original ResearchConceptsStructure-based mutagenesisCryoelectron microscopy structureCargo adaptor proteinsMicroscopy structureAdaptor proteinCytoplasmic dyneinMicrotubule affinityCryo-EMDynein 1DynactinOpen formDynein tailInhibited stateProcessive movementMotor domainMicrotubulesMotor dimerizationTransport machinesHigh affinityMutagenesisDyneinTailAffinityProteinDimerization