2024
Mechanism of phosphate release from actin filaments
Wang Y, Wu J, Zsolnay V, Pollard T, Voth G. Mechanism of phosphate release from actin filaments. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2408156121. PMID: 38980907, PMCID: PMC11260136, DOI: 10.1073/pnas.2408156121.Peer-Reviewed Original ResearchConceptsCryo-EM structureAll-atom molecular dynamics simulationsATP-actinRate of phosphate releaseActin filamentsMechanism of phosphate releaseMolecular dynamics simulationsPhosphate releaseDissociation of phosphateR177Salt bridgesHydrogen bondsEnergy barrierDynamics simulationsComputational studyRelease of phosphateFilamentsRelease pathwayInternal cavityResiduesStudy residuesOccluding interactionsGatePrimary eventD179Publisher Correction: Cryo-EM structures reveal how phosphate release from Arp3 weakens actin filament branches formed by Arp2/3 complex
Chavali S, Chou S, Cao W, Pollard T, De La Cruz E, Sindelar C. Publisher Correction: Cryo-EM structures reveal how phosphate release from Arp3 weakens actin filament branches formed by Arp2/3 complex. Nature Communications 2024, 15: 2354. PMID: 38491023, PMCID: PMC10943100, DOI: 10.1038/s41467-024-46804-9.Peer-Reviewed Original ResearchCryo-EM structures reveal how phosphate release from Arp3 weakens actin filament branches formed by Arp2/3 complex
Chavali S, Chou S, Cao W, Pollard T, De La Cruz E, Sindelar C. Cryo-EM structures reveal how phosphate release from Arp3 weakens actin filament branches formed by Arp2/3 complex. Nature Communications 2024, 15: 2059. PMID: 38448439, PMCID: PMC10918085, DOI: 10.1038/s41467-024-46179-x.Peer-Reviewed Original ResearchConceptsArp2/3 complexActin filamentsCryo-EM structureMother filamentDaughter filamentArp2/3 complex nucleates branched actin filamentsActin filament branchingBranched actin filamentsDissociation of PiADP-PiFilament branchingOrganelle movementADP stateBranch junctionsArp3A-resolutionActinArp2/3ADP-BeFxFilamentsADPPhosphate releaseFilament mechanismArp2Organelles
2020
Force and phosphate release from Arp2/3 complex promote dissociation of actin filament branches
Pandit NG, Cao W, Bibeau J, Johnson-Chavarria EM, Taylor EW, Pollard TD, De La Cruz EM. Force and phosphate release from Arp2/3 complex promote dissociation of actin filament branches. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 13519-13528. PMID: 32461373, PMCID: PMC7306818, DOI: 10.1073/pnas.1911183117.Peer-Reviewed Original ResearchConceptsActin filament branchesArp2/3 complexMother filamentFilament branchesTotal internal reflection fluorescence microscopyEssential cellular functionsMechanical forcesActin filament networkReflection fluorescence microscopyCellular functionsActin networkCell motilityComplex generatesActin filamentsArp2/3Filament networkFluorescence microscopyState 1Branch junctionsState 2FilamentsComplexesPhosphate releaseMuscle actinADP
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