2012
Identification of cation-binding sites on actin that drive polymerization and modulate bending stiffness
Kang H, Bradley MJ, McCullough BR, Pierre A, Grintsevich EE, Reisler E, De La Cruz EM. Identification of cation-binding sites on actin that drive polymerization and modulate bending stiffness. Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109: 16923-16927. PMID: 23027950, PMCID: PMC3479481, DOI: 10.1073/pnas.1211078109.Peer-Reviewed Original ResearchConceptsCation-binding sitesActin assemblyEukaryotic biologyLong-pitch helixActin functionSalt-dependent effectsCell divisionCell motilityActin polymerizationFilament assemblyAdjacent subunitsIntracellular transportActin filamentsPhysiological salt concentrationsActin monomersCellular shapeNonspecific ionic strength effectsDiscrete sites
2010
Actin filament remodeling by actin depolymerization factor/cofilin
Pfaendtner J, De La Cruz EM, Voth GA. Actin filament remodeling by actin depolymerization factor/cofilin. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 7299-7304. PMID: 20368459, PMCID: PMC2867716, DOI: 10.1073/pnas.0911675107.Peer-Reviewed Original ResearchConceptsActin depolymerization factorSubunit interactionsCofilin bindingActin filamentsADF/cofilinFactor/cofilinLong-pitch helixHelix monomersNeighboring subunitMolecular basisSevering proteinHydrophobic loopConformational dynamicsSubdomain 1Subdomain 2Loop movesTriggers reorganizationCofilinFilament flexibilityFilamentsNative filamentsDNaseFilament contactsAtom simulationsBinding