2024
PilY1 regulates the dynamic architecture of the type IV pilus machine in Pseudomonas aeruginosa
Guo S, Chang Y, Brun Y, Howell P, Burrows L, Liu J. PilY1 regulates the dynamic architecture of the type IV pilus machine in Pseudomonas aeruginosa. Nature Communications 2024, 15: 9382. PMID: 39477930, PMCID: PMC11525922, DOI: 10.1038/s41467-024-53638-y.Peer-Reviewed Original ResearchConceptsPilus extensionCell envelopeType IV piliPathogen Pseudomonas aeruginosaBacterial cell envelopeP. aeruginosa cellsCryo-electron tomographyPilus dynamicsPilin subunitSecretin channelSurface motilityPriming complexOuter membraneBiofilm formationT4PPilY1P. aeruginosaPseudomonas aeruginosaCentral poreMolecular mechanismsSubtomogram averagingPotential therapeutic targetDynamic assemblyTherapeutic targetMolecular framework
2021
Computational insights into the membrane fusion mechanism of SARS-CoV-2 at the cellular level
Wang J, Maschietto F, Guberman-Pfeffer MJ, Reiss K, Allen B, Xiong Y, Lolis E, Batista VS. Computational insights into the membrane fusion mechanism of SARS-CoV-2 at the cellular level. Computational And Structural Biotechnology Journal 2021, 19: 5019-5028. PMID: 34540146, PMCID: PMC8442599, DOI: 10.1016/j.csbj.2021.08.053.Peer-Reviewed Original ResearchMembrane fusion mechanismMembrane fusionSpike trimerNeutral amino acid transporterHost cellular membranesAmino acid transportersCentral stalkCentral poreHost membraneFusion mechanismCellular membranesAcid transportersMolecular levelViral membraneCellular levelEnzymatic activityChoreographic eventFusion peptideAntiviral inhibitorsDrug designAttractive targetInitial bindingMembraneConformational constraintsSpike glycoprotein
2018
Cryo-EM structure of the insect olfactory receptor Orco
Butterwick JA, del Mármol J, Kim KH, Kahlson MA, Rogow JA, Walz T, Ruta V. Cryo-EM structure of the insect olfactory receptor Orco. Nature 2018, 560: 447-452. PMID: 30111839, PMCID: PMC6129982, DOI: 10.1038/s41586-018-0420-8.Peer-Reviewed Original ResearchConceptsAnchor domainOdorant receptorsSingle-particle cryo-electron microscopy structureCryo-electron microscopy structureMinimal sequence conservationReceptor familyRemarkable sequence diversityCryo-EM structureInter-subunit interactionsMicroscopy structureSequence conservationSequence diversityÅ resolutionCentral poreStructural insightsIon channelsOrcoSuch diversityOlfactory systemDiversityEnormous varietyOdor tuningFamilyInsectsSubunits
2005
Quantitative Modeling of Chloride Conductance in Yeast TRK Potassium Transporters
Rivetta A, Slayman C, Kuroda T. Quantitative Modeling of Chloride Conductance in Yeast TRK Potassium Transporters. Biophysical Journal 2005, 89: 2412-2426. PMID: 16040756, PMCID: PMC1366741, DOI: 10.1529/biophysj.105.066712.Peer-Reviewed Original ResearchConceptsTrk proteinTrk potassium transportersPotassium transportersYeast spheroplastsPlasma membraneCentral poreNegative membrane voltagesProteinActive accumulationChloride conductanceChloride currentsMembrane dielectricMembrane voltageSaccharomycesSpheroplastsFungiPlantsTransportersBacteriaConductanceMembrane slope conductanceHypothetical structural modelStructural modelMembraneSlope conductanceRole 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
Visualizing a Circadian Clock Protein Crystal Structure of KaiC and Functional Insights
Pattanayek R, Wang J, Mori T, Xu Y, Johnson CH, Egli M. Visualizing a Circadian Clock Protein Crystal Structure of KaiC and Functional Insights. Molecular Cell 2004, 15: 375-388. PMID: 15304218, DOI: 10.1016/j.molcel.2004.07.013.Peer-Reviewed Original ResearchConceptsClock protein complexesAuto-phosphorylation siteGlobal gene expressionCircadian biological clockHomohexameric complexEvolutionary relationshipsProtein complexesCircadian clockworkATP bindingFunctional insightsCircadian proteinsKaiCProtein crystal structuresCentral poreGene expressionMolecular componentsBiochemical mechanismsBiological clockCrystal structureDouble donutComplex formationProteinCircadian rhythmicityMutationsCyanobacteria
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
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