2003
Importance of B-Cell Responses for Immunological Control of Variant Strains of Simian Immunodeficiency Virus
Johnson W, Lifson J, Lang S, Johnson R, Desrosiers R. Importance of B-Cell Responses for Immunological Control of Variant Strains of Simian Immunodeficiency Virus. Journal Of Virology 2003, 77: 375-381. PMID: 12477842, PMCID: PMC140644, DOI: 10.1128/jvi.77.1.375-381.2003.Peer-Reviewed Original ResearchMeSH KeywordsAIDS VaccinesAnimalsAntigens, CD20B-LymphocytesCD4 AntigensMacaca mulattaPhenotypeSimian immunodeficiency virusConceptsHigh viral loadSimian immunodeficiency virusViral loadAntibody-mediated neutralizationImmunological controlEffective immunological controlImmunodeficiency virusVariant strainsContinuous viral replicationReplicative capacityB cell responsesGp120 envelope proteinTime of infectionHigh replicative capacityAntibody responseDisease progressionB cellsDay 14Tissue macrophagesExperimental infectionViral replicationRhesus monkeysVariable region 1InfectionV2 sequences
2000
Simian Immunodeficiency Virus Containing Mutations in N-Terminal Tyrosine Residues and in the PxxP Motif in Nef Replicates Efficiently in Rhesus Macaques
Carl S, Iafrate A, Lang S, Stolte N, Stahl-Hennig C, Mätz-Rensing K, Fuchs D, Skowronski J, Kirchhoff F. Simian Immunodeficiency Virus Containing Mutations in N-Terminal Tyrosine Residues and in the PxxP Motif in Nef Replicates Efficiently in Rhesus Macaques. Journal Of Virology 2000, 74: 4155-4164. PMID: 10756028, PMCID: PMC111930, DOI: 10.1128/jvi.74.9.4155-4164.2000.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesCD4 AntigensCell Line, TransformedCOS CellsDown-RegulationGene Products, nefHistocompatibility Antigens Class IHumansMacaca mulattaMutagenesisP21-Activated KinasesPhosphorylationProtein Serine-Threonine KinasesSimian immunodeficiency virusSrc Homology DomainsTyrosineViral LoadVirus ReplicationConceptsAbility of NefTyrosine-based endocytosis signalTyrosine residuesHigh viral loadCellular signal transductionTyrosine kinase SrcNef functionViral loadEndocytosis signalEndocytic machineryPXXP motifN-terminal tyrosine residueCell surface expressionKinase SrcKinase assaysSignal transductionProline residuesClass I major histocompatibility complexN-terminal tyrosineI major histocompatibility complexLigand domainCombined mutationsNef interactionsMajor histocompatibility complexMutations
1999
The Acidic Region and Conserved Putative Protein Kinase C Phosphorylation Site in Nef Are Important for SIV Replication in Rhesus Macaques
Carl S, Iafrate A, Lang S, Stahl-Hennig C, Kuhn E, Fuchs D, Mätz-Rensing K, Haaft P, Heeney J, Skowronski J, Kirchhoff F. The Acidic Region and Conserved Putative Protein Kinase C Phosphorylation Site in Nef Are Important for SIV Replication in Rhesus Macaques. Virology 1999, 257: 138-155. PMID: 10208928, DOI: 10.1006/viro.1999.9645.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCD4 AntigensCOS CellsGene Products, nefHistocompatibility Antigens Class IHIV-1Hydrogen-Ion ConcentrationMacaca mulattaMolecular Sequence DataMutagenesis, Site-DirectedNef Gene Products, Human Immunodeficiency VirusPhosphorylationProtein Kinase CSimian immunodeficiency virusSurface PropertiesVirus ReplicationConceptsProtein kinase C phosphorylation sitesKinase C phosphorylation sitesC phosphorylation sitesPhosphorylation sitesPutative protein kinase C phosphorylation sitePotential protein kinase C phosphorylation sitesAcidic regionWild-type activityPKC phosphorylation sitesJurkat T cellsSignal transductionAbility of NefReplication assaysFunctional relevanceCell culture systemMutant virusNef functionPathogenic SIVmac239 cloneAcidic chargeReduced infectivityReplicationCulture systemNefRapid reversionRhesus macaques
1997
Association of simian immunodeficiency virus Nef with cellular serine/threonine kinases is dispensable for the development of AIDS in rhesus macaques
Lang S, Lafrate A, Stahl-Hennig C, Kuhn E, Nisslein T, Kaup F, Haupt M, Hunsmann G, Skowronski J, Kirchhoff F. Association of simian immunodeficiency virus Nef with cellular serine/threonine kinases is dispensable for the development of AIDS in rhesus macaques. Nature Medicine 1997, 3: 860-865. PMID: 9256276, DOI: 10.1038/nm0897-860.Peer-Reviewed Original ResearchConceptsCellular serine/threonine kinaseSerine/threonine kinaseThreonine kinaseTyrosine kinase SrcPutative SH3Simian immunodeficiency virus NefKinase SrcMutant formsEfficient replicationKinaseInduction of AIDSSimian immunodeficiency virusNef geneCD4 downregulationSIVmac NefRhesus macaquesRapid deathNef sequencesSH3NefSrcGenesDomainDifferent time pointsPathogenicity