1999
The Bovine Papillomavirus E5 Protein Requires a Juxtamembrane Negative Charge for Activation of the Platelet-Derived Growth Factor β Receptor and Transformation of C127 Cells
Klein O, Kegler-Ebo D, Su J, Smith S, DiMaio D. The Bovine Papillomavirus E5 Protein Requires a Juxtamembrane Negative Charge for Activation of the Platelet-Derived Growth Factor β Receptor and Transformation of C127 Cells. Journal Of Virology 1999, 73: 3264-3272. PMID: 10074180, PMCID: PMC104090, DOI: 10.1128/jvi.73.4.3264-3272.1999.Peer-Reviewed Original ResearchConceptsPlatelet-derived growth factor beta receptorPDGF beta receptorGrowth factor beta receptorE5 proteinBovine papillomavirus E5 proteinCell transformationHomodimeric transmembrane proteinSustained receptor activationC127 mouse fibroblastsExtracellular juxtamembrane regionBeta receptorsE5 dimerE5 mutantsDouble mutantJuxtamembrane regionTransmembrane proteinC127 cellsC-terminusAcidic residuesE5 geneMutantsPosition 33Mouse fibroblastsProteinSalt bridge
1995
Mutational analysis of the interaction between the bovine papillomavirus E5 transforming protein and the endogenous beta receptor for platelet-derived growth factor in mouse C127 cells
Nilson L, Gottlieb R, Polack G, DiMaio D. Mutational analysis of the interaction between the bovine papillomavirus E5 transforming protein and the endogenous beta receptor for platelet-derived growth factor in mouse C127 cells. Journal Of Virology 1995, 69: 5869-5874. PMID: 7543592, PMCID: PMC189463, DOI: 10.1128/jvi.69.9.5869-5874.1995.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBinding SitesBovine papillomavirus 1Cell LineDNA Mutational AnalysisDown-RegulationFrameshift MutationKineticsMiceMolecular Sequence DataMutagenesisMutagenesis, Site-DirectedOncogene Proteins, ViralPhosphotyrosinePoint MutationProtein-Tyrosine KinasesReceptor, Platelet-Derived Growth Factor betaReceptors, Platelet-Derived Growth FactorRecombinant ProteinsTyrosineConceptsMouse C127 cellsE5 proteinReceptor tyrosine phosphorylationTyrosine phosphorylationPDGF beta receptorC127 cellsPDGF receptorWild-type E5 proteinBovine papillomavirus E5 proteinCarboxyl-terminal cysteine residueCell transformationPlatelet-derived growth factor beta receptorMembrane-associated proteinsSustained receptor activationPDGF receptor activationMutation of glutamineTransformation-competent mutantsGrowth factor beta receptorBovine papillomavirus E5Carboxyl-terminal positionBeta receptorsHigh-level expressionPlatelet-derived growth factorStable complex formationReceptor activationAn intact PDGF signaling pathway is required for efficient growth transformation of mouse C127 cells by the bovine papillomavirus E5 protein.
Riese D, DiMaio D. An intact PDGF signaling pathway is required for efficient growth transformation of mouse C127 cells by the bovine papillomavirus E5 protein. Oncogene 1995, 10: 1431-9. PMID: 7731695.Peer-Reviewed Original ResearchConceptsBPV E5 proteinPDGF beta receptorE5 proteinE5 geneC127 cellsBovine papillomavirus E5 proteinPDGF beta-receptor genePlatelet-derived growth factor beta receptorGrowth transformationBovine papillomavirus type 1 E5 proteinC127 cell linesMembrane-associated proteinsMouse C127 cellsHeterologous cell typesV-sis oncogeneDNA synthesisGrowth factor beta receptorStable growth transformationBeta receptor geneCell linesBeta receptorsBPV E5Reduced DNA synthesisMouse C127Genetic support
1992
Stable association between the bovine papillomavirus E5 transforming protein and activated platelet-derived growth factor receptor in transformed mouse cells.
Petti L, DiMaio D. Stable association between the bovine papillomavirus E5 transforming protein and activated platelet-derived growth factor receptor in transformed mouse cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 1992, 89: 6736-6740. PMID: 1323117, PMCID: PMC49578, DOI: 10.1073/pnas.89.15.6736.Peer-Reviewed Original ResearchConceptsE5 proteinPlatelet-derived growth factorGrowth factor receptor activationPDGF receptorMouse C127 cellsBovine papillomavirus E5Platelet-derived growth factor receptorShorter proteinTransforming proteinCoimmunoprecipitation analysisGrowth factor receptorReceptor transmitsStable associationC127 cellsTumorigenic transformationMouse cellsProteinBovine papillomavirusFactor receptorDistinct mechanismsStable complexesGrowth factorReceptor activationImportant targetBeta receptorsThe central hydrophobic domain of the bovine papillomavirus E5 transforming protein can be functionally replaced by many hydrophobic amino acid sequences containing a glutamine
Kulke R, Horwitz B, Zibello T, DiMaio D. The central hydrophobic domain of the bovine papillomavirus E5 transforming protein can be functionally replaced by many hydrophobic amino acid sequences containing a glutamine. Journal Of Virology 1992, 66: 505-511. PMID: 1727496, PMCID: PMC238311, DOI: 10.1128/jvi.66.1.505-511.1992.Peer-Reviewed Original ResearchConceptsHydrophobic amino acidsAmino acidsE5 proteinRandom hydrophobic sequencesHydrophobic domainRodent fibroblast cell linesCentral hydrophobic domainHydrophobic amino acid sequenceCarboxyl-terminal amino acidsMouse C127 cellsAmino acid sequenceClasses of mutantsAbsence of glutamineBovine papillomavirus E5Mutant proteinsTransforming proteinDefective mutantsHydrophobic sequenceFibroblast cell lineProtein stabilityAcid sequenceC127 cellsHomodimer formationEfficient transformationProtein
1991
Biological properties of the deer papillomavirus E5 gene in mouse C127 cells: growth transformation, induction of DNA synthesis, and activation of the platelet-derived growth factor receptor
Kulke R, DiMaio D. Biological properties of the deer papillomavirus E5 gene in mouse C127 cells: growth transformation, induction of DNA synthesis, and activation of the platelet-derived growth factor receptor. Journal Of Virology 1991, 65: 4943-4949. PMID: 1651413, PMCID: PMC248956, DOI: 10.1128/jvi.65.9.4943-4949.1991.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBlotting, NorthernCell Transformation, ViralCloning, MolecularDeerDNAGene ExpressionGenes, ViralIn Vitro TechniquesMiceMolecular Sequence DataOncogene Proteins, ViralPapillomaviridaePlatelet-Derived Growth FactorReceptors, Cell SurfaceReceptors, Platelet-Derived Growth FactorRNA, ViralViral Structural ProteinsConceptsMouse C127 cellsE5 proteinC127 cellsE5 genePlatelet-derived growth factor beta receptorPDGF receptorBovine papillomavirus type 1 E5 proteinConstitutive tyrosine phosphorylationDNA synthesisGrowth factor beta receptorBovine papillomavirus type 1Platelet-derived growth factor receptorTransformation of fibroblastsPapillomavirus type 1Sequence similarityGrowth factor receptorTyrosine phosphorylationBiological activityShort regionFoci formationProteinFactor receptorReceptor formsB chainGrowth transformationActivation of the platelet‐derived growth factor receptor by the bovine papillomavirus E5 transforming protein.
Petti L, Nilson L, DiMaio D. Activation of the platelet‐derived growth factor receptor by the bovine papillomavirus E5 transforming protein. The EMBO Journal 1991, 10: 845-855. PMID: 1849073, PMCID: PMC452725, DOI: 10.1002/j.1460-2075.1991.tb08017.x.Peer-Reviewed Original ResearchConceptsPlatelet-derived growth factorE5 proteinBovine papillomavirus E5 proteinImportant cellular intermediatesPDGF receptorRodent fibroblast cell linesV-sis geneMembrane-associated proteinsStable growth transformationBovine papillomavirus E5Platelet-derived growth factor receptorSequence similarityCellular proteinsFibroblast cell lineGrowth factor receptorC127 cellsTumorigenic transformationE5 geneGrowth regulationCellular intermediatesFR3T3 cellsMature formShort regionGenetic studiesBeta-type receptors
1990
Bovine papillomavirus E2 repressor mutant displays a high-copy-number phenotype and enhanced transforming activity
Riese D, Settleman J, Neary K, DiMaio D. Bovine papillomavirus E2 repressor mutant displays a high-copy-number phenotype and enhanced transforming activity. Journal Of Virology 1990, 64: 944-949. PMID: 2153255, PMCID: PMC249196, DOI: 10.1128/jvi.64.2.944-949.1990.Peer-Reviewed Original ResearchConceptsRepressor proteinWild-type copy numberBovine papillomavirus type 1 genomeCopy numberViral genomeTranscriptional repressor proteinTransient expression experimentsMouse C127 cellsMutant viral DNAViral DNAType 1 genomeNumber phenotypeRepressor activityLow copy numberMethionine codonInitiation codonExpression experimentsC127 cellsGenomeCV1 cellsRepressor mutantsFoci formationColony formationCodonProtein
1989
Genetic Evidence that Acute Morphologic Transformation, Induction of Cellular DNA Synthesis, and Focus Formation Are Mediated by a Single Activity of the Bovine Papillomavirus E5 Protein
Settleman J, Fazeli A, Malicki J, Horwitz B, Dimaio D. Genetic Evidence that Acute Morphologic Transformation, Induction of Cellular DNA Synthesis, and Focus Formation Are Mediated by a Single Activity of the Bovine Papillomavirus E5 Protein. Molecular And Cellular Biology 1989, 9: 5563-5572. DOI: 10.1128/mcb.9.12.5563-5572.1989.Peer-Reviewed Original ResearchE5 proteinE5 geneCellular DNA synthesisC127 cellsBovine papillomavirus E5 proteinMouse C127 cellsDNA synthesisMorphologic transformationCultured rodent cellsDefective phenotypeMissense mutantsUnstable proteinDefective mutantsGenetic evidenceMutational analysisE5 activityRodent cellsCell cycleViral genesBiochemical activitySerum starvationFoci formationCell transformationGenesContact inhibitionGenetic evidence that acute morphologic transformation, induction of cellular DNA synthesis, and focus formation are mediated by a single activity of the bovine papillomavirus E5 protein.
Settleman J, Fazeli A, Malicki J, Horwitz B, DiMaio D. Genetic evidence that acute morphologic transformation, induction of cellular DNA synthesis, and focus formation are mediated by a single activity of the bovine papillomavirus E5 protein. Molecular And Cellular Biology 1989, 9: 5563-5572. PMID: 2555701, PMCID: PMC363726, DOI: 10.1128/mcb.9.12.5563.Peer-Reviewed Original ResearchConceptsE5 proteinE5 geneCellular DNA synthesisC127 cellsBovine papillomavirus E5 proteinMouse C127 cellsDNA synthesisMorphologic transformationCultured rodent cellsDefective phenotypeMissense mutantsUnstable proteinDefective mutantsGenetic evidenceMutational analysisE5 activityRodent cellsCell cycleViral genesBiochemical activitySerum starvationCell transformationGenesContact inhibitionVirus multiplicityGenetic Evidence that Acute Morphologic Transformation, Induction of Cellular DNA Synthesis, and Focus Formation Are Mediated by a Single Activity of the Bovine Papillomavirus E5 Protein
Settleman J, Fazeli A, Malicki J, Horwitz B, Dimaio D. Genetic Evidence that Acute Morphologic Transformation, Induction of Cellular DNA Synthesis, and Focus Formation Are Mediated by a Single Activity of the Bovine Papillomavirus E5 Protein. Molecular And Cellular Biology 1989, 9: 5563-5572. DOI: 10.1128/mcb.9.12.5563-5572.1989.Peer-Reviewed Original ResearchInduction of cellular DNA synthesisE5 proteinCellular DNA synthesisBovine papillomavirusC127 cellsBovine papillomavirus E5 proteinDNA synthesisStable cell transformantsMouse C127 cellsMutants expressed normal levelsVirus multiplicity of infectionMissense mutantsDefective phenotypesGenetic evidenceE5 geneE5 activitySerum starvationFocus-forming assayMultiplicity of infectionCell cycleMutation analysisViral genesBiochemical activityMorphological transformationContact inhibitionTransforming activity of a 16-amino-acid segment of the bovine papillomavirus E5 protein linked to random sequences of hydrophobic amino acids
Horwitz B, Weinstat D, DiMaio D. Transforming activity of a 16-amino-acid segment of the bovine papillomavirus E5 protein linked to random sequences of hydrophobic amino acids. Journal Of Virology 1989, 63: 4515-4519. PMID: 2552136, PMCID: PMC251082, DOI: 10.1128/jvi.63.11.4515-4519.1989.Peer-Reviewed Original ResearchConceptsE5 proteinAmino acidsWild-type E5 proteinBovine papillomavirus E5 proteinAmino acid sequence requirementsHydrophobic amino acid sequenceCarboxyl-terminal amino acidsMouse C127 cellsAmino acid sequenceBovine papillomavirus type 1Carboxyl-terminal portionWild-type onesHydrophobic amino acidsPapillomavirus type 1Hydrophobic sequenceDifferent amino acidsAcid sequenceC127 cellsSequence requirementsE5 geneCell transformationFoci formationSubstitution mutationsCell membraneProteinStructure, Activity, and Regulation of the Bovine Papillomavirus E5 Gene and Its Transforming Protein Product
Horwitz B, Settleman J, Prakash S, DiMaio D. Structure, Activity, and Regulation of the Bovine Papillomavirus E5 Gene and Its Transforming Protein Product. Current Topics In Microbiology And Immunology 1989, 144: 143-151. PMID: 2551579, DOI: 10.1007/978-3-642-74578-2_18.Peer-Reviewed Original ResearchConceptsE5 geneFoci formationBovine papillomavirus type 1 DNACell focus formationBPV geneCodon resultsC127 cellsMouse cellsTumorigenic transformationProtein productsK polypeptideGenesViral mutantsBiochemical analysisEfficient transformationCellsMutantsPolypeptideDNARegulationExpressionDownstreamActivityTranslationFormationOpen reading frames E6 and E7 of bovine papillomavirus type 1 are both required for full transformation of mouse C127 cells
Neary K, DiMaio D. Open reading frames E6 and E7 of bovine papillomavirus type 1 are both required for full transformation of mouse C127 cells. Journal Of Virology 1989, 63: 259-266. PMID: 2535732, PMCID: PMC247680, DOI: 10.1128/jvi.63.1.259-266.1989.Peer-Reviewed Original ResearchConceptsBovine papillomavirus type 1Open reading frames E6Mouse C127 cellsFull-length viral genomesAnchorage-independent growthPapillomavirus type 1Focus-forming activityC127 cellsORF E6First methionine codonViral genomeColony formationRetrovirus long terminal repeatsSeries of mutationsE6/E7Second ATG codonLong terminal repeatBPV1 genomeMethionine codonATG codonNumber plasmidE5 geneSpecific proteinsSimultaneous disruptionE6 protein
1988
Efficient transactivation and morphologic transformation by bovine papillomavirus genes expressed from a bovine papillomavirus/simian virus 40 recombinant virus.
Settleman J, DiMaio D. Efficient transactivation and morphologic transformation by bovine papillomavirus genes expressed from a bovine papillomavirus/simian virus 40 recombinant virus. Proceedings Of The National Academy Of Sciences Of The United States Of America 1988, 85: 9007-9011. PMID: 2848252, PMCID: PMC282651, DOI: 10.1073/pnas.85.23.9007.Peer-Reviewed Original ResearchConceptsBovine papillomavirus type 1 E2Simian virus 40 early regionTransactivation of genesCultured mammalian cellsHybrid viral genomesSimian virus 40 virionsMouse C127 cellsSimian virus 40 large tumor antigenBovine papillomavirus type 1Large tumor antigenPapillomavirus type 1E5 mutantsAcute cellular responseRegulatory genesMammalian cellsControl regionEfficient transactivationForeign genesReporter geneType 1 geneWild-type virusC127 cellsE5 geneTumorigenic transformationCellular responses44-Amino-Acid E5 Transforming Protein of Bovine Papillomavirus Requires a Hydrophobic Core and Specific Carboxyl-Terminal Amino Acids
Horwitz B, Burkhardt A, Schlegel R, DiMaio D. 44-Amino-Acid E5 Transforming Protein of Bovine Papillomavirus Requires a Hydrophobic Core and Specific Carboxyl-Terminal Amino Acids. Molecular And Cellular Biology 1988, 8: 4071-4078. DOI: 10.1128/mcb.8.10.4071-4078.1988.Peer-Reviewed Original ResearchAmino acid substitutionsE5 proteinAmino acidsTransforming proteinAcid substitutionsCarboxyl-terminal thirdCarboxyl-terminal amino acidsCharacterization of mutantsSpecific amino acid sequencesMouse C127 cellsAmino acid sequenceBovine papillomavirus type 1Specific amino acidsHydrophobic amino acidsPapillomavirus type 1Focus-forming activityCysteine residuesAcid sequenceC127 cellsSaturation mutagenesisE5 geneTransforming activityEssential amino acidsFoci formationMissense mutations44-amino-acid E5 transforming protein of bovine papillomavirus requires a hydrophobic core and specific carboxyl-terminal amino acids.
Horwitz B, Burkhardt A, Schlegel R, DiMaio D. 44-amino-acid E5 transforming protein of bovine papillomavirus requires a hydrophobic core and specific carboxyl-terminal amino acids. Molecular And Cellular Biology 1988, 8: 4071-4078. PMID: 2847028, PMCID: PMC365476, DOI: 10.1128/mcb.8.10.4071.Peer-Reviewed Original ResearchConceptsAmino acid substitutionsE5 proteinAmino acidsTransforming proteinAcid substitutionsCarboxyl-terminal thirdCarboxyl-terminal amino acidsCharacterization of mutantsSpecific amino acid sequencesMouse C127 cellsAmino acid sequenceBovine papillomavirus type 1Specific amino acidsHydrophobic amino acidsPapillomavirus type 1Focus-forming activityCysteine residuesAcid sequenceC127 cellsSaturation mutagenesisE5 geneTransforming activityEssential amino acidsFoci formationMissense mutationsBovine papillomavirus mutant temperature sensitive for transformation, replication and transactivation.
DiMaio D, Settleman J. Bovine papillomavirus mutant temperature sensitive for transformation, replication and transactivation. The EMBO Journal 1988, 7: 1197-1204. PMID: 2841117, PMCID: PMC454456, DOI: 10.1002/j.1460-2075.1988.tb02931.x.Peer-Reviewed Original ResearchConceptsMutant viral DNANormal viral DNA replicationMajor viral regulatory proteinLack of mutantsN-terminal halfTemperature-sensitive defectMouse C127 cellsViral DNA replicationViral regulatory proteinsStrong genetic evidenceViral DNAPleiotropic phenotypesGenetic experimentsMost cell linesDNA replicationGene activityGenetic evidenceReplication defectRegulatory proteinsExtrachromosomal plasmidsMutant temperatureC127 cellsTemperature shiftGenetic analysisViral biological activities
1987
Mutational analysis of open reading frame E4 of bovine papillomavirus type 1
Neary K, Horwitz B, DiMaio D. Mutational analysis of open reading frame E4 of bovine papillomavirus type 1. Journal Of Virology 1987, 61: 1248-1252. PMID: 3029420, PMCID: PMC254088, DOI: 10.1128/jvi.61.4.1248-1252.1987.Peer-Reviewed Original ResearchConceptsBovine papillomavirus type 1Papillomavirus type 1E4 proteinLate gene expressionMouse C127 cellsAmino acid sequenceAcid sequenceExtrachromosomal plasmidsBiological activityC127 cellsMutational analysisGene expressionFoci formationORF E2ORFProteinViral DNAMutationsSoft agaroseCellsMutantsType 1Papilloma formationDNAPlasmid
1986
Translation of open reading frame E5 of bovine papillomavirus is required for its transforming activity.
DiMaio D, Guralski D, Schiller J. Translation of open reading frame E5 of bovine papillomavirus is required for its transforming activity. Proceedings Of The National Academy Of Sciences Of The United States Of America 1986, 83: 1797-1801. PMID: 3006073, PMCID: PMC323171, DOI: 10.1073/pnas.83.6.1797.Peer-Reviewed Original ResearchConceptsMouse C127 cellsC127 cellsTransformation defectGenetic mapping experimentsCorrect reading frameStrong genetic evidenceBovine papillomavirus type 1Series of mutationsViral DNAPapillomavirus type 1Putative genesGenetic evidenceHydrophobic proteinsReading frameFrameshift mutantsPolypeptide domainsBovine papillomavirus DNAOncogenic transformationDifferent mutantsORFSecond mutationSequence changesMutantsMapping experimentsFrameshift mutation