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 positionsReceptorsSpecificityOligomerization
2015
Biologically active LIL proteins built with minimal chemical diversity
Heim EN, Marston JL, Federman RS, Edwards AP, Karabadzhak AG, Petti LM, Engelman DM, DiMaio D. Biologically active LIL proteins built with minimal chemical diversity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2015, 112: e4717-e4725. PMID: 26261320, PMCID: PMC4553812, DOI: 10.1073/pnas.1514230112.Peer-Reviewed Original ResearchConceptsAmino acidsTransmembrane proteinSpecific biological activityPlatelet-derived growth factor β receptorArtificial transmembrane proteinsChemical diversityGrowth factor β receptorHydrophobic amino acidsLIL proteinsKnown proteinsIndividual amino acidsTransmembrane domainCellular contextDifferent amino acidsComplete mutagenesisMost proteinsBiological activityActive proteinSimple proteinSingle isoleucineSpecific sequencesProteinDiversityLeucineΒ receptor
1997
Identification of amino acids in the transmembrane and juxtamembrane domains of the platelet-derived growth factor receptor required for productive interaction with the bovine papillomavirus E5 protein
Petti L, Reddy V, Smith S, DiMaio D. Identification of amino acids in the transmembrane and juxtamembrane domains of the platelet-derived growth factor receptor required for productive interaction with the bovine papillomavirus E5 protein. Journal Of Virology 1997, 71: 7318-7327. PMID: 9311809, PMCID: PMC192076, DOI: 10.1128/jvi.71.10.7318-7327.1997.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBovine papillomavirus 1CattleCell LineCell MembraneErbB ReceptorsHumansInterleukin-3KineticsLeucineLysineMiceMolecular Sequence DataMutagenesis, Site-DirectedOncogene Proteins v-sisOncogene Proteins, ViralPoint MutationPolymerase Chain ReactionProtein Structure, SecondaryRatsReceptor, ErbB-2Receptor, Platelet-Derived Growth Factor betaReceptors, Platelet-Derived Growth FactorReceptors, VirusRecombinant Fusion ProteinsRetroviridae Proteins, OncogenicSequence AlignmentThreonineTransfectionConceptsBovine papillomavirus E5 proteinE5 proteinTransmembrane domainPDGF beta receptorAmino acidsCellular platelet-derived growth factor (PDGF) beta receptorReceptor mutantsJuxtamembrane domainPlatelet-derived growth factor beta receptorPutative transmembrane domainsMurine Ba/F3 cellsCarboxyl-terminal domainBa/F3 cellsV-sisReceptor tyrosine phosphorylationExtracellular juxtamembrane domainGrowth factor beta receptorSpecific amino acidsProductive interactionReceptor activationPlatelet-derived growth factor receptorAcidic amino acidsComplex formationThreonine residuesBeta receptors