2005
Role of the GYVG Pore Motif of HslU ATPase in Protein Unfolding and Translocation for Degradation by HslV Peptidase*
Park E, Rho YM, Koh OJ, Ahn SW, Seong IS, Song JJ, Bang O, Seol JH, Wang J, Eom SH, Chung CH. Role of the GYVG Pore Motif of HslU ATPase in Protein Unfolding and Translocation for Degradation by HslV Peptidase*. Journal Of Biological Chemistry 2005, 280: 22892-22898. PMID: 15849200, DOI: 10.1074/jbc.m500035200.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAmino Acid MotifsAmino Acid SequenceCaseinsChromatographyCross-Linking ReagentsDose-Response Relationship, DrugElectrophoresis, Polyacrylamide GelEndopeptidase ClpEscherichia coliEscherichia coli ProteinsGlycineHydrolysisModels, BiologicalModels, MolecularMolecular Sequence DataMutagenesisMutagenesis, Site-DirectedMutationPeptidesProtein BindingProtein DenaturationProtein FoldingProtein TransportSequence Homology, Amino AcidTemperatureConceptsHslU ATPasePore motifHslVU complexHslV peptidaseCentral poreATP-dependent proteaseProtein unfoldingProteolytic active sitesHslU hexamerProteolytic chamberHslV dodecamerUnfolded proteinsHslV.HslUGly residueTranslocation processAmino acidsDegradation of caseinMotifProteinATP cleavageSame structural featuresATPase activityTranslocationATPase
2004
Nucleotide-dependent domain motions within rings of the RecA/AAA+ superfamily
Wang J. Nucleotide-dependent domain motions within rings of the RecA/AAA+ superfamily. Journal Of Structural Biology 2004, 148: 259-267. PMID: 15522774, DOI: 10.1016/j.jsb.2004.07.003.Peer-Reviewed Original ResearchConceptsNucleotide-dependent conformational changesT7 DNA helicaseImportant biological functionsMechanochemical motorOligomeric ringsDNA helicaseBiological functionsF1-ATPaseConformational changesDomain motionProteinMechanistic workForce generationHslUHelicaseFoldsChemical energyATPFamilyRing structureDomainMembers
2002
The C-terminal Tails of HslU ATPase Act as a Molecular Switch for Activation of HslV Peptidase*
Seong IS, Kang MS, Choi MK, Lee JW, Koh OJ, Wang J, Eom SH, Chung CH. The C-terminal Tails of HslU ATPase Act as a Molecular Switch for Activation of HslV Peptidase*. Journal Of Biological Chemistry 2002, 277: 25976-25982. PMID: 12011053, DOI: 10.1074/jbc.m202793200.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesAmino Acid SequenceAmino Acid SubstitutionATP-Dependent ProteasesBinding SitesElectrophoresis, Polyacrylamide GelEndopeptidasesEnzyme ActivationHeat-Shock ProteinsModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedProtein ConformationSerine EndopeptidasesStructure-Activity RelationshipConceptsC-terminal tailHslV peptidaseHslVU complexC-terminusHexameric ringMolecular switchATP-dependent proteaseC-terminal 10 residuesAmino acidsProteolytic active sitesDodecamer consistingHslU hexamerHslU ATPaseTail peptideAxial poreATPase actsPolypeptide substratesSubstrate entryS proteasomeHslUCentral poreTerminusHslVPeptidaseCritical role
2001
A Corrected Quaternary Arrangement of the Peptidase HslV and ATPase HslU in a Cocrystal Structure
Wang J. A Corrected Quaternary Arrangement of the Peptidase HslV and ATPase HslU in a Cocrystal Structure. Journal Of Structural Biology 2001, 134: 15-24. PMID: 11469873, DOI: 10.1006/jsbi.2001.4347.Peer-Reviewed Original ResearchConceptsQuaternary arrangementATP-dependent HslVU proteaseHslV peptidaseTranslocation poreHslU ATPaseHslVU proteaseHexameric ringHslVCocrystal structureHslUSmall-angle X-ray scattering (SAXS) studiesCrystal structurePeptidaseATPaseCrystallographic analysisElectron microscopic studySpace group assignmentX-ray scattering studyBindsHexamerProtease