2017
Single methyl groups can act as toggle switches to specify transmembrane Protein-protein interactions
He L, Steinocher H, Shelar A, Cohen EB, Heim EN, Kragelund BB, Grigoryan G, DiMaio D. Single methyl groups can act as toggle switches to specify transmembrane Protein-protein interactions. ELife 2017, 6: e27701. PMID: 28869036, PMCID: PMC5597333, DOI: 10.7554/elife.27701.Peer-Reviewed Original ResearchConceptsProtein-protein interactionsErythropoietin receptorTransmembrane proteinTransmembrane protein-protein interactionsTMD interactionsModel transmembrane proteinMouse erythropoietin receptorHuman erythropoietin receptorSingle methyl groupGrowth factor independenceSide chain methyl groupsCellular processesMouse cellsFactor independenceChain methyl groupsIntrinsic specificityToggle switchTraptamersMethyl groupProteinReceptor activitySpecific positionsReceptorsSpecificityOligomerizationTwo transmembrane dimers of the bovine papillomavirus E5 oncoprotein clamp the PDGF β receptor in an active dimeric conformation
Karabadzhak AG, Petti LM, Barrera FN, Edwards APB, Moya-Rodríguez A, Polikanov YS, Freites JA, Tobias DJ, Engelman DM, DiMaio D. Two transmembrane dimers of the bovine papillomavirus E5 oncoprotein clamp the PDGF β receptor in an active dimeric conformation. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: e7262-e7271. PMID: 28808001, PMCID: PMC5584431, DOI: 10.1073/pnas.1705622114.Peer-Reviewed Original ResearchConceptsTransmembrane domainE5 proteinE5 dimerPlatelet-derived growth factor β receptorGrowth factor β receptorActive dimeric conformationPDGF β-receptorTransmembrane dimerProtein bindsMembrane environmentReceptor dimerizationDimeric conformationAtom molecular dynamics simulationsBiochemical experimentsMouse cellsMolecular mechanismsActive dimerΒ receptorBovine papillomavirusProteinSpecific interactionsMembrane modelingReceptor activationDimerizationComplexes
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 receptors
1989
Structure, 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 transformationCellsMutantsPolypeptideDNARegulationExpressionDownstreamActivityTranslationFormation