2024
Electron tomography visualization of HIV-1 virions trapped by fusion inhibitors to host cells in infected tissues
Ladinsky M, Zhu L, Ullah I, Uchil P, Kumar P, Kay M, Bjorkman P. Electron tomography visualization of HIV-1 virions trapped by fusion inhibitors to host cells in infected tissues. Journal Of Virology 2024, 98: e01432-24. PMID: 39475277, PMCID: PMC11575291, DOI: 10.1128/jvi.01432-24.Peer-Reviewed Original ResearchHIV-1 virionsHIV-1 target cellsHIV-1Fusion inhibitorsTarget cellsBone marrow/liver/thymus miceHIV-1 pseudovirionsCo-receptorHost cell membraneTZM-bl cellsPre-hairpin intermediateVascular endothelial cellsCell surfaceHumanized miceTZM-blCell membraneInfected tissuesEnvEndothelial cellsViral envelopeBind host receptorsHost receptorsInhibitorsCo-receptor proteinsPresence of virions
2023
HIV-1 Env trimers asymmetrically engage CD4 receptors in membranes
Li W, Qin Z, Nand E, Grunst M, Grover J, Bess J, Lifson J, Zwick M, Tagare H, Uchil P, Mothes W. HIV-1 Env trimers asymmetrically engage CD4 receptors in membranes. Nature 2023, 623: 1026-1033. PMID: 37993716, PMCID: PMC10686830, DOI: 10.1038/s41586-023-06762-6.Peer-Reviewed Original ResearchConceptsHIV-1 Env trimersCD4 moleculeHuman immunodeficiency virus-1 (HIV-1) infectionEnv trimersAntibody-mediated immune responsesEnv-CD4 interactionVirus-1 infectionVaccine immunogen designViral envelope glycoproteinsHIV-1Immune responseCD4 receptorImmunogen designEnvelope glycoproteinVirus-like particlesCD4EnvHost cell membrane
2020
Analysis of Dot/Icm Type IVB Secretion System Subassemblies by Cryoelectron Tomography Reveals Conformational Changes Induced by DotB Binding
Park D, Chetrit D, Hu B, Roy CR, Liu J. Analysis of Dot/Icm Type IVB Secretion System Subassemblies by Cryoelectron Tomography Reveals Conformational Changes Induced by DotB Binding. MBio 2020, 11: 10.1128/mbio.03328-19. PMID: 32071271, PMCID: PMC7029142, DOI: 10.1128/mbio.03328-19.Peer-Reviewed Original ResearchConceptsType IV secretion systemSecretion systemCryoelectron tomographyInner membraneDot/Icm apparatusConformational changesDot/IcmEukaryotic host cellsBacterial inner membraneWild-type cellsHost cell membraneWhole-cell contextMultiprotein nanomachineSubtomogram analysisSophisticated nanomachinesCytoplasmic substratesProtein effectorsCell polesDNA substratesSubtomogram averagingATPase complexDNA transferHost infectionStructural basisHost cells
2018
Visualization of the type III secretion mediated Salmonella–host cell interface using cryo-electron tomography
Park D, Lara-Tejero M, Waxham MN, Li W, Hu B, Galán JE, Liu J. Visualization of the type III secretion mediated Salmonella–host cell interface using cryo-electron tomography. ELife 2018, 7: e39514. PMID: 30281019, PMCID: PMC6175578, DOI: 10.7554/elife.39514.Peer-Reviewed Original ResearchConceptsCryo-electron tomographyEffector translocationBacterial-host cell contactType III protein secretion systemProtein secretion systemHost cell interfaceProtein secretion machinesCell membraneComplex host-pathogen interactionsType III secretionHost-pathogen interactionsHost cell membraneTarget cell membraneNegative bacterial pathogensTranslocon poreSecretion machineEffector proteinsSecretion systemHost cellsBacterial pathogensCell contactCell interfaceIntimate associationTranslocationBacteria
2015
Mono-ubiquitylated ORF45 Mediates Association of KSHV Particles with Internal Lipid Rafts for Viral Assembly and Egress
Wang X, Zhu N, Li W, Zhu F, Wang Y, Yuan Y. Mono-ubiquitylated ORF45 Mediates Association of KSHV Particles with Internal Lipid Rafts for Viral Assembly and Egress. PLOS Pathogens 2015, 11: e1005332. PMID: 26650119, PMCID: PMC4674120, DOI: 10.1371/journal.ppat.1005332.Peer-Reviewed Original ResearchKaposi's sarcoma-associated herpesvirusLipid raftsSarcoma-associated herpesvirusFinal envelopmentVesicle membraneRecombinant Kaposi's sarcoma-associated herpesvirusTrans-Golgi networkCytoplasmic membrane vesiclesCellular cargo transportVirion particlesInfectious virion particlesHost cell membraneViral particlesTrans-GolgiEndosome vesiclesLR associationBudding processORF45Virion assemblyWild typeIntracellular signalingTegument proteinsCellular membranesMembrane vesiclesViral assembly
2012
HIV: Cell Binding and Entry
Wilen CB, Tilton JC, Doms RW. HIV: Cell Binding and Entry. Cold Spring Harbor Perspectives In Medicine 2012, 2: a006866. PMID: 22908191, PMCID: PMC3405824, DOI: 10.1101/cshperspect.a006866.Peer-Reviewed Original ResearchConceptsHIV entryViral tropismPrimary cellular receptor CD4Human immunodeficiency virus (HIV) replicationAbility of HIVImmunodeficiency virus replicationHost immune responseHuman immune systemCellular receptor CD4Immune responseCellular coreceptorTherapeutic interventionsImmune systemReceptor CD4Virus replicationHIVCell bindingHost cell cytoplasmTropismHost cell membraneTrigger fusionCell cytoplasmCD4Major rolePathogenesis
2007
Antibodies Targeting Linear Determinants of the Envelope Protein Protect Mice against West Nile Virus
Ledizet M, Kar K, Foellmer HG, Bonafé N, Anthony KG, Gould LH, Bushmich SL, Fikrig E, Koski RA. Antibodies Targeting Linear Determinants of the Envelope Protein Protect Mice against West Nile Virus. The Journal Of Infectious Diseases 2007, 196: 1741-1748. PMID: 18190253, DOI: 10.1086/523654.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAntibodies, ViralAntibody AffinityChlorocebus aethiopsDrosophilaEpitopesFemaleFluorescent Antibody TechniqueHorsesImmunization, PassiveImmunoglobulinsMiceMice, Inbred C3HMolecular Sequence DataPeptide FragmentsVero CellsViral Envelope ProteinsWest Nile FeverWest Nile virusConceptsE proteinMultiple flavivirus infectionsVirus-neutralizing antibodiesE protein epitopesFlavivirus envelope proteinProtect miceWest Nile virusFlavivirus infectionLethal challengeProtective antibodiesWest Nile virus E proteinProtective epitopesVirus E proteinRelated flavivirusesImmunoglobulinAntibodiesNile virusLinear determinantsEpitopesEnvelope proteinProtein epitopesMiceHost cell membraneWNVPeptides
2006
Micro Fluidic Chemostat with Deformable Membranes: Intracellular Biofilm-Like Structure Model
Cho H, Groisman A, Campbell J, Flores S, Levchenko A. Micro Fluidic Chemostat with Deformable Membranes: Intracellular Biofilm-Like Structure Model. 2006, 96-96. DOI: 10.1109/bmn.2006.330906.Peer-Reviewed Original ResearchHost cell membraneMicrofluidic chemostatBacterial cell-cell communicationCell-cell communicationCell membraneIndividual cell behaviorsGene expressionStress responseProtein techniquesHigh-density coloniesBiological stressCell behaviorEscherichia coliBiofilm formationBacterial biofilmsHost organsIntriguing questionChemostatBacterial studiesPathogenic microbiologyMembraneBiofilmsExperimental toolCellsExact mechanismMicrofluidic Chemostat with Deformable Membranes: Intracellular Biofilm-Like Structure Model
Cho H, Groisman A, Campbell J, Flores S, Levchenko A. Microfluidic Chemostat with Deformable Membranes: Intracellular Biofilm-Like Structure Model. 2006, 14-14. DOI: 10.1109/bmn.2006.330900.Peer-Reviewed Original ResearchMicrofluidic chemostatHost cell membraneBacterial cell-cell communicationCell-cell communicationCell membraneIndividual cell behaviorsGene expressionStress responseProtein techniquesHigh-density coloniesBiological stressCell behaviorEscherichia coliBiofilm formationBacterial biofilmsHost organsIntriguing questionChemostatBacterial studiesPathogenic microbiologyMembraneBiofilmsExperimental toolCellsExact mechanism
2003
Architecture of the Flaviviral Replication Complex PROTEASE, NUCLEASE, AND DETERGENTS REVEAL ENCASEMENT WITHIN DOUBLE-LAYERED MEMBRANE COMPARTMENTS*
Uchil P, Satchidanandam V. Architecture of the Flaviviral Replication Complex PROTEASE, NUCLEASE, AND DETERGENTS REVEAL ENCASEMENT WITHIN DOUBLE-LAYERED MEMBRANE COMPARTMENTS*. Journal Of Biological Chemistry 2003, 278: 24388-24398. PMID: 12700232, DOI: 10.1074/jbc.m301717200.Peer-Reviewed Original ResearchConceptsViral genomic RNAVesicle packetsMembrane compartmentsGenomic RNADouble-membrane compartmentsInner membrane vesiclesViral RNA speciesHost cell membraneHeavy membrane fractionNonionic detergent extractsRNA speciesReplicative intermediate RNAViral NS3Replication complexPrior trypsin treatmentMicrococcal nucleaseComplex proteaseMembranous sitesReplicative form RNASpecialized structuresActive proteinIntermediate RNAMembrane vesiclesMembrane fractionForm RNA
This site is protected by hCaptcha and its Privacy Policy and Terms of Service apply