2020
FGF23 contains two distinct high-affinity binding sites enabling bivalent interactions with α-Klotho
Suzuki Y, Kuzina E, An SJ, Tome F, Mohanty J, Li W, Lee S, Liu Y, Lax I, Schlessinger J. FGF23 contains two distinct high-affinity binding sites enabling bivalent interactions with α-Klotho. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 31800-31807. PMID: 33257569, PMCID: PMC7749347, DOI: 10.1073/pnas.2018554117.Peer-Reviewed Original ResearchMeSH KeywordsBinding SitesCalcinosisCell MembraneFibroblast Growth Factor-23Fibroblast Growth FactorsGlucuronidaseHEK293 CellsHumansHyperostosis, Cortical, CongenitalHyperphosphatemiaImmunoglobulin Fc FragmentsKlotho ProteinsMutationOsteomalaciaProtein BindingProtein DomainsProtein MultimerizationRecombinant Fusion ProteinsRickets, HypophosphatemicConceptsFGF receptorsTotal internal reflection fluorescence microscopyChimeric receptor moleculesReflection fluorescence microscopyBinding sitesDisulfide bridge formationCritical metabolic processesMAPK responseCytoplasmic domainGrowth factor familyTerminal tailFactor familyKinase activationSimilar binding affinitiesExtracellular domainFGFR1 activationTandem repeatsMetabolic processesDisulfide bridgesCell surfaceDistinct ligandsCell membraneFluorescence microscopyDistinct high-affinity binding sitesPhosphate homeostasis
2019
Structures of ligand-occupied β-Klotho complexes reveal a molecular mechanism underlying endocrine FGF specificity and activity
Kuzina ES, Ung PM, Mohanty J, Tome F, Choi J, Pardon E, Steyaert J, Lax I, Schlessinger A, Schlessinger J, Lee S. Structures of ligand-occupied β-Klotho complexes reveal a molecular mechanism underlying endocrine FGF specificity and activity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 7819-7824. PMID: 30944224, PMCID: PMC6475419, DOI: 10.1073/pnas.1822055116.Peer-Reviewed Original ResearchConceptsFGF receptorsPleiotropic cellular responsesFibroblast growth factor (FGF) familyPrimary high-affinity receptorsKlotho proteinChimeric mutantsGrowth factor familyCatalytic subunitFGFR functionRegulatory interactionsTerminal tailPleiotropic cellular effectsFactor familyP motifS motifExtracellular domainMolecular mechanismsIntracellular signalingCellular responsesSame binding siteCellular effectsGeneral mechanismEndocrine FGFsBinary complexBinding sites
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
2006
Attenuation of signaling pathways stimulated by pathologically activated FGF-receptor 2 mutants prevents craniosynostosis
Eswarakumar VP, Özcan F, Lew ED, Bae JH, Tomé F, Booth CJ, Adams DJ, Lax I, Schlessinger J. Attenuation of signaling pathways stimulated by pathologically activated FGF-receptor 2 mutants prevents craniosynostosis. Proceedings Of The National Academy Of Sciences Of The United States Of America 2006, 103: 18603-18608. PMID: 17132737, PMCID: PMC1693709, DOI: 10.1073/pnas.0609157103.Peer-Reviewed Original ResearchConceptsFGF receptorsDocking protein FRS2alphaCommon craniofacial abnormalitySelective uncouplingPremature fusionSkull developmentFunction mutationsDominant mutationsNormal skull developmentMurine model systemMutationsSevere bone disordersModel systemFGFR2cCraniofacial abnormalitiesCalvaria organ culturesPathwayOrgan cultureFRS2alphaSkull vaultMutantsPharmacological approachesFusionFGFRUncoupling