2018
Identification of a biologically active fragment of ALK and LTK-Ligand 2 (augmentor-α)
Reshetnyak AV, Mohanty J, Tomé F, Puleo DE, Plotnikov AN, Ahmed M, Kaur N, Poliakov A, Cinnaiyan AM, Lax I, Schlessinger J. Identification of a biologically active fragment of ALK and LTK-Ligand 2 (augmentor-α). Proceedings Of The National Academy Of Sciences Of The United States Of America 2018, 115: 8340-8345. PMID: 30061385, PMCID: PMC6099872, DOI: 10.1073/pnas.1807881115.Peer-Reviewed Original ResearchConceptsLeukocyte tyrosine kinaseN-terminal variable regionDeletion mutantsVariable regionsDisulfide bridgesDetailed biochemical characterizationIntramolecular disulfide bridgesNIH 3T3 cellsSimilar tyrosine phosphorylationAnaplastic lymphoma kinaseReceptor-receptor interactionsMAP kinase responseTyrosine phosphorylationBiochemical characterizationTyrosine kinaseReceptor tyrosineNeuronal differentiationL6 cellsPhysiological roleMode of actionKinase responseCultured cellsPC12 cells
2016
Distinct cellular properties of oncogenic KIT receptor tyrosine kinase mutants enable alternative courses of cancer cell inhibition
Shi X, Sousa LP, Mandel-Bausch EM, Tome F, Reshetnyak AV, Hadari Y, Schlessinger J, Lax I. Distinct cellular properties of oncogenic KIT receptor tyrosine kinase mutants enable alternative courses of cancer cell inhibition. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: e4784-e4793. PMID: 27482095, PMCID: PMC4995958, DOI: 10.1073/pnas.1610179113.Peer-Reviewed Original ResearchConceptsTyrosine kinase inhibitorsCombination of TKIsAnti-Kit antibodiesKIT mutantsPrecision medicine treatmentAntibody treatmentMedicine treatmentLow dosePrecision medicine effortsToxin conjugatesKIT inhibitorsActivating mutationsDistinct cellular propertiesReceptor tyrosine kinasesKinase inhibitorsCell inhibitionCancer cellsGenomic sequencing analysisCancer cell inhibitionMedicine effortsCancerTreatmentTyrosine kinaseSequencing analysisInhibitors
2015
Augmentor α and β (FAM150) are ligands of the receptor tyrosine kinases ALK and LTK: Hierarchy and specificity of ligand–receptor interactions
Reshetnyak AV, Murray PB, Shi X, Mo ES, Mohanty J, Tome F, Bai H, Gunel M, Lax I, Schlessinger J. Augmentor α and β (FAM150) are ligands of the receptor tyrosine kinases ALK and LTK: Hierarchy and specificity of ligand–receptor interactions. Proceedings Of The National Academy Of Sciences Of The United States Of America 2015, 112: 15862-15867. PMID: 26630010, PMCID: PMC4702955, DOI: 10.1073/pnas.1520099112.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnaplastic Lymphoma KinaseAnimalsCell LineCell Line, TumorCell ProliferationCytokinesDoxycyclineEnzyme ActivationHEK293 CellsHeparinHumansImmunoblottingLigandsMiceMolecular Sequence DataNIH 3T3 CellsProtein BindingReceptor Protein-Tyrosine KinasesSequence Homology, Amino AcidConceptsLeukocyte tyrosine kinaseReceptor tyrosine kinasesTyrosine kinaseIL-3-independent growthCritical cellular functionsBa/F3 cellsCell surface receptorsAnaplastic lymphoma kinaseLigand-receptor interactionsCellular functionsLigand bindingF3 cellsReceptor tyrosineProtein ligandsNIH/3T3 cellsKinaseSurface receptorsIndependent growthSubnanomolar potencyCellsDisease statesHigh affinityLymphoma kinaseFAM150ANovel cytokine
2014
Structure, domain organization, and different conformational states of stem cell factor-induced intact KIT dimers
Opatowsky Y, Lax I, Tomé F, Bleichert F, Unger VM, Schlessinger J. Structure, domain organization, and different conformational states of stem cell factor-induced intact KIT dimers. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 1772-1777. PMID: 24449920, PMCID: PMC3918759, DOI: 10.1073/pnas.1323254111.Peer-Reviewed Original ResearchConceptsExtracellular regionConformational statesIg-like domainsReceptor tyrosine kinasesDifferent conformational statesTrans autophosphorylationTyrosine kinase domainMembrane-proximal Ig-like domainsTrans phosphorylationAutophosphorylation sitesDomain organizationKinase domainCytoplasmic regionHomotypic interactionsKinase activityReceptor dimersDimeric receptorTyrosine kinaseAsymmetric arrangementMolecular interactionsPrevalent conformationsCrystal structureAutophosphorylationDimersKinase
2010
Asymmetric receptor contact is required for tyrosine autophosphorylation of fibroblast growth factor receptor in living cells
Bae JH, Boggon TJ, Tomé F, Mandiyan V, Lax I, Schlessinger J. Asymmetric receptor contact is required for tyrosine autophosphorylation of fibroblast growth factor receptor in living cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 2866-2871. PMID: 20133753, PMCID: PMC2840318, DOI: 10.1073/pnas.0914157107.Peer-Reviewed Original ResearchConceptsReceptor tyrosine kinasesTyrosine autophosphorylationKinase moleculesTyrosine kinaseFGFR1 kinase domainSpecific docking sitesAsymmetric dimer formationFibroblast growth factor receptorActivation of intracellularKinase domainOncogenic activating mutationsGrowth factor receptorMolecular basisDocking siteKinase activityBiochemical experimentsActive enzymeN-lobeC-lobeFGF receptorsFunction mutationsAutophosphorylationTransphosphorylationLiving cellsFactor receptor
2009
The Selectivity of Receptor Tyrosine Kinase Signaling Is Controlled by a Secondary SH2 Domain Binding Site
Bae J, Lew E, Yuzawa S, Tomé F, Lax I, Schlessinger J. The Selectivity of Receptor Tyrosine Kinase Signaling Is Controlled by a Secondary SH2 Domain Binding Site. Journal Of End-to-End-testing 2009, 138: 514-524. DOI: 10.1016/s9999-9994(09)20438-7.Peer-Reviewed Original ResearchSH2 domainSH2 domain-mediated interactionsReceptor tyrosine kinase signalingPhosphorylation-independent mannerReceptor phosphorylation sitesDomain-mediated interactionsDomain Binding SiteSpecific cellular processesTyrosine kinase signalingParticular sequence motifsReceptor tyrosine kinasesBinding sitesTyrosine kinase domainPhosphorylation sitesCellular processesSequence motifsKinase signalingKinase domainPhospholipase CγTyrosine kinaseSecondary binding siteCultured cellsDomain selectivityRegulation of selectivityIndependent mannerThe Selectivity of Receptor Tyrosine Kinase Signaling Is Controlled by a Secondary SH2 Domain Binding Site
Bae JH, Lew ED, Yuzawa S, Tomé F, Lax I, Schlessinger J. The Selectivity of Receptor Tyrosine Kinase Signaling Is Controlled by a Secondary SH2 Domain Binding Site. Cell 2009, 138: 514-524. PMID: 19665973, PMCID: PMC4764080, DOI: 10.1016/j.cell.2009.05.028.Peer-Reviewed Original ResearchConceptsSH2 domainSH2 domain-mediated interactionsReceptor tyrosine kinase signalingPhosphorylation-independent mannerReceptor phosphorylation sitesDomain-mediated interactionsDomain Binding SiteSpecific cellular processesTyrosine kinase signalingParticular sequence motifsReceptor tyrosine kinasesBinding sitesTyrosine kinase domainPhosphorylation sitesCellular processesSequence motifsPhospholipase CgammaKinase signalingKinase domainTyrosine kinaseSecondary binding siteCultured cellsDomain selectivityRegulation of selectivityIndependent manner