2022
The nucleoporin Gle1 activates DEAD-box protein 5 (Dbp5) by promoting ATP binding and accelerating rate limiting phosphate release
Gray S, Cao W, Montpetit B, De La Cruz EM. The nucleoporin Gle1 activates DEAD-box protein 5 (Dbp5) by promoting ATP binding and accelerating rate limiting phosphate release. Nucleic Acids Research 2022, 50: 3998-4011. PMID: 35286399, PMCID: PMC9023272, DOI: 10.1093/nar/gkac164.Peer-Reviewed Original ResearchConceptsNuclear pore complexRNA exportDEAD-box protein Dbp5ATPase cycleDbp5's ATPase activityDEAD (Asp-Glu-Ala-Asp) box protein 5Pore complexDbp5ATP bindingATPase cyclingNucleotide stateCytoplasmic faceGle1Pool of ATPADP-PiGene expressionProtein 5Mechanistic understandingNucleoporinsNup159ATPase activityATP dissociationATPPi releasePi release rate
2015
Pi Release Limits the Intrinsic and RNA-Stimulated ATPase Cycles of DEAD-Box Protein 5 (Dbp5)
Wong EV, Cao W, Vörös J, Merchant M, Modis Y, Hackney DD, Montpetit B, De La Cruz EM. Pi Release Limits the Intrinsic and RNA-Stimulated ATPase Cycles of DEAD-Box Protein 5 (Dbp5). Journal Of Molecular Biology 2015, 428: 492-508. PMID: 26730886, PMCID: PMC4744555, DOI: 10.1016/j.jmb.2015.12.018.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesDEAD-box RNA HelicasesKineticsNucleocytoplasmic Transport ProteinsPhosphatesRNASaccharomyces cerevisiaeSaccharomyces cerevisiae Proteins
2011
Mechanism of Mss116 ATPase Reveals Functional Diversity of DEAD-Box Proteins
Cao W, Coman MM, Ding S, Henn A, Middleton ER, Bradley MJ, Rhoades E, Hackney DD, Pyle AM, De La Cruz EM. Mechanism of Mss116 ATPase Reveals Functional Diversity of DEAD-Box Proteins. Journal Of Molecular Biology 2011, 409: 399-414. PMID: 21501623, PMCID: PMC3125984, DOI: 10.1016/j.jmb.2011.04.004.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine DiphosphateAdenosine TriphosphatasesDEAD-box RNA HelicasesIntronsRNASaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsThermodynamicsConceptsGroup II intronsWeak RNARNA bindingDEAD-box RNA helicase proteinATP hydrolysisBiochemical intermediatesDEAD-box proteinsRNA helicase proteinStrong RNA bindingStable RNA duplexAbsence of nucleotideATP utilizationStrong thermodynamic couplingFunctional diversityIntron splicingStrong RNAIntron foldingVivo splicingHelicase proteinMRNA translationMss116ATPase cyclingVivo functionBiological roleADP state
2007
The ATPase Cycle Mechanism of the DEAD-box rRNA Helicase, DbpA
Henn A, Cao W, Hackney DD, De La Cruz EM. The ATPase Cycle Mechanism of the DEAD-box rRNA Helicase, DbpA. Journal Of Molecular Biology 2007, 377: 193-205. PMID: 18237742, PMCID: PMC2359651, DOI: 10.1016/j.jmb.2007.12.046.Peer-Reviewed Original Research
2006
The Tail Domain of Myosin Va Modulates Actin Binding to One Head
Olivares AO, Chang W, Mooseker MS, Hackney DD, De La Cruz EM. The Tail Domain of Myosin Va Modulates Actin Binding to One Head. Journal Of Biological Chemistry 2006, 281: 31326-31336. PMID: 16921171, DOI: 10.1074/jbc.m603898200.Peer-Reviewed Original Research
2004
Mechanochemical coupling of two substeps in a single myosin V motor
Uemura S, Higuchi H, Olivares AO, De La Cruz EM, Ishiwata S. Mechanochemical coupling of two substeps in a single myosin V motor. Nature Structural & Molecular Biology 2004, 11: 877-883. PMID: 15286720, DOI: 10.1038/nsmb806.Peer-Reviewed Original ResearchMechanism of Nucleotide Binding to Actomyosin VI EVIDENCE FOR ALLOSTERIC HEAD-HEAD COMMUNICATION*
Robblee JP, Olivares AO, De La Cruz EM. Mechanism of Nucleotide Binding to Actomyosin VI EVIDENCE FOR ALLOSTERIC HEAD-HEAD COMMUNICATION*. Journal Of Biological Chemistry 2004, 279: 38608-38617. PMID: 15247304, DOI: 10.1074/jbc.m403504200.Peer-Reviewed Original ResearchActinsActomyosinAdenosine DiphosphateAdenosine TriphosphatasesAdenosine TriphosphateAllosteric SiteAnimalsCell LineDose-Response Relationship, DrugHydrogen-Ion ConcentrationInsectaKineticsModels, BiologicalModels, ChemicalModels, StatisticalMuscle, SkeletalMyosin Heavy ChainsNucleotidesProtein BindingPyrenesRabbitsTime Factors
2001
Kinetic Mechanism and Regulation of Myosin VI*
De La Cruz E, Ostap E, Sweeney H. Kinetic Mechanism and Regulation of Myosin VI*. Journal Of Biological Chemistry 2001, 276: 32373-32381. PMID: 11423557, DOI: 10.1074/jbc.m104136200.Peer-Reviewed Original ResearchConceptsHeavy chain phosphorylationMyosin VIPhysiological nucleotide concentrationsADP releaseHigh duty ratio motorMolecular basisUnique adaptationsActin filamentsATP bindsATPase cycleNative dimerRate-limiting stepDetailed kinetic analysisChain phosphorylationRegulationNucleotide concentrationsDiffusional encounterMyosinLow affinityMutantsProcessivityKinetic analysisPhosphorylationActinBinds