2019
Mechanism of actin polymerization revealed by cryo-EM structures of actin filaments with three different bound nucleotides
Chou SZ, Pollard TD. Mechanism of actin polymerization revealed by cryo-EM structures of actin filaments with three different bound nucleotides. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 4265-4274. PMID: 30760599, PMCID: PMC6410863, DOI: 10.1073/pnas.1807028115.Peer-Reviewed Original ResearchConceptsATP hydrolysisActin filamentsBarbed endsMultiple favorable interactionsCryo-electron microscopyNetwork of interactionsShort-pitch helixActin polymerizationC-terminusAdjacent subunitsSubdomain 2Conformational changesEM structuresBinding loopSubdomain 3SubunitsPhosphate dissociationPointed endRelease sitesFilamentsActive siteConformationADPBackbone conformationSide chains
2006
Control of the Assembly of ATP- and ADP-Actin by Formins and Profilin
Kovar DR, Harris ES, Mahaffy R, Higgs HN, Pollard TD. Control of the Assembly of ATP- and ADP-Actin by Formins and Profilin. Cell 2006, 124: 423-435. PMID: 16439214, DOI: 10.1016/j.cell.2005.11.038.Peer-Reviewed Original ResearchConceptsATP hydrolysisTotal internal reflection fluorescence microscopyActin filament polymerizationReflection fluorescence microscopyDiversity of functionsPresence of profilinMammalian forminFormin proteinsFormin mDia1Processive elongationFilament polymerizationForminsActin filamentsBiochemical activityBarbed endsProfilinFluorescence microscopyADP-actinAssembly stepsRecent studiesMDia1Common featureProcessivityElongationProtein