2023
Heparin is essential for optimal cell signaling by FGF21 and for regulation of βKlotho cellular stability
An S, Mohanty J, Tome F, Suzuki Y, Lax I, Schlessinger J. Heparin is essential for optimal cell signaling by FGF21 and for regulation of βKlotho cellular stability. Proceedings Of The National Academy Of Sciences Of The United States Of America 2023, 120: e2219128120. PMID: 36745784, PMCID: PMC9962926, DOI: 10.1073/pnas.2219128120.Peer-Reviewed Original ResearchConceptsHeparan sulfate proteoglycanCellular stabilityCell membraneSingle-molecule fluorescenceProtein kinase responsesChinese hamster ovary cellsFGF moleculesHamster ovary cellsFactor bindsReceptor assemblyReceptor dimerizationGrowth factor bindsHigh-affinity bindingFGF1 stimulationKinase responseCHO cellsOvary cellsSulfate proteoglycanIntracellular CaKlotho proteinFGFR1cPotential roleRegulationΒKlothoCells
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
2018
Structures of β-klotho reveal a ‘zip code’-like mechanism for endocrine FGF signalling
Lee S, Choi J, Mohanty J, Sousa LP, Tome F, Pardon E, Steyaert J, Lemmon MA, Lax I, Schlessinger J. Structures of β-klotho reveal a ‘zip code’-like mechanism for endocrine FGF signalling. Nature 2018, 553: 501-505. PMID: 29342135, PMCID: PMC6594174, DOI: 10.1038/nature25010.Peer-Reviewed Original ResearchMeSH KeywordsBinding SitesCrystallography, X-RayExtracellular SpaceFibroblast Growth Factor-23Fibroblast Growth FactorsGlycoside HydrolasesHEK293 CellsHumansKlotho ProteinsLigandsMembrane ProteinsModels, MolecularProtein BindingProtein DomainsReceptors, Fibroblast Growth FactorSignal TransductionSubstrate Specificity