+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-34084 | |||||||||
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Title | Cryo-EM Structure of FGF23-FGFR4-aKlotho-HS Quaternary Complex | |||||||||
Map data | ||||||||||
Sample |
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Keywords | FGF hormones / FGF Receptor / Klotho Co-Receptor / Heparan Sulfate Glycosaminoglycans / SIGNALING PROTEIN | |||||||||
Function / homology | Function and homology information type 1 fibroblast growth factor receptor binding / FGFRL1 modulation of FGFR1 signaling / norepinephrine biosynthetic process / FGFR4 mutant receptor activation / betaKlotho-mediated ligand binding / positive regulation of vitamin D 24-hydroxylase activity / beta-glucuronidase / regulation of phosphate transport / FGFR1c and Klotho ligand binding and activation / negative regulation of hormone secretion ...type 1 fibroblast growth factor receptor binding / FGFRL1 modulation of FGFR1 signaling / norepinephrine biosynthetic process / FGFR4 mutant receptor activation / betaKlotho-mediated ligand binding / positive regulation of vitamin D 24-hydroxylase activity / beta-glucuronidase / regulation of phosphate transport / FGFR1c and Klotho ligand binding and activation / negative regulation of hormone secretion / positive regulation of MAPKKK cascade by fibroblast growth factor receptor signaling pathway / beta-glucuronidase activity / regulation of extracellular matrix disassembly / vitamin D catabolic process / response to sodium phosphate / intracellular phosphate ion homeostasis / FGFR2c ligand binding and activation / negative regulation of bone mineralization / Activated point mutants of FGFR2 / Phospholipase C-mediated cascade; FGFR2 / fibroblast growth factor receptor activity / phosphate ion homeostasis / Signaling by activated point mutants of FGFR3 / FGFR3c ligand binding and activation / Phospholipase C-mediated cascade; FGFR3 / regulation of bile acid biosynthetic process / fibroblast growth factor receptor binding / cellular response to vitamin D / FGFR4 ligand binding and activation / vitamin D binding / Phospholipase C-mediated cascade; FGFR4 / cellular response to leptin stimulus / Signaling by activated point mutants of FGFR1 / FGFR1c ligand binding and activation / Downstream signaling of activated FGFR1 / Phospholipase C-mediated cascade: FGFR1 / energy reserve metabolic process / response to vitamin D / cellular response to interleukin-6 / positive regulation of catalytic activity / negative regulation of systemic arterial blood pressure / response to angiotensin / cellular response to parathyroid hormone stimulus / beta-glucosidase activity / positive regulation of DNA biosynthetic process / PI-3K cascade:FGFR2 / PI-3K cascade:FGFR3 / fibroblast growth factor binding / PI-3K cascade:FGFR4 / PI-3K cascade:FGFR1 / response to magnesium ion / positive regulation of proteolysis / regulation of lipid metabolic process / PI3K Cascade / fibroblast growth factor receptor signaling pathway / negative regulation of osteoblast differentiation / SHC-mediated cascade:FGFR2 / positive regulation of bone mineralization / SHC-mediated cascade:FGFR3 / calcium ion homeostasis / SHC-mediated cascade:FGFR4 / Signaling by FGFR4 in disease / SHC-mediated cascade:FGFR1 / FRS-mediated FGFR2 signaling / FRS-mediated FGFR3 signaling / Signaling by FGFR2 in disease / FRS-mediated FGFR4 signaling / Signaling by FGFR3 in disease / FRS-mediated FGFR1 signaling / transport vesicle / Signaling by FGFR1 in disease / regulation of cell migration / ERK1 and ERK2 cascade / cholesterol homeostasis / determination of adult lifespan / response to activity / animal organ morphogenesis / Post-translational protein phosphorylation / Negative regulation of FGFR2 signaling / Negative regulation of FGFR3 signaling / Negative regulation of FGFR4 signaling / Negative regulation of FGFR1 signaling / growth factor activity / receptor protein-tyrosine kinase / hormone activity / peptidyl-tyrosine phosphorylation / Golgi lumen / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Constitutive Signaling by Aberrant PI3K in Cancer / cell migration / PIP3 activates AKT signaling / glucose homeostasis / heparin binding / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / RAF/MAP kinase cascade / protein autophosphorylation / positive regulation of MAPK cascade / carbohydrate metabolic process / positive regulation of ERK1 and ERK2 cascade / cell differentiation Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.03 Å | |||||||||
Authors | Mohammadi M / Chen L | |||||||||
Funding support | China, 1 items
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Citation | Journal: Nature / Year: 2023 Title: Structural basis for FGF hormone signalling. Authors: Lingfeng Chen / Lili Fu / Jingchuan Sun / Zhiqiang Huang / Mingzhen Fang / Allen Zinkle / Xin Liu / Junliang Lu / Zixiang Pan / Yang Wang / Guang Liang / Xiaokun Li / Gaozhi Chen / Moosa Mohammadi / Abstract: α/βKlotho coreceptors simultaneously engage fibroblast growth factor (FGF) hormones (FGF19, FGF21 and FGF23) and their cognate cell-surface FGF receptors (FGFR1-4) thereby stabilizing the endocrine ...α/βKlotho coreceptors simultaneously engage fibroblast growth factor (FGF) hormones (FGF19, FGF21 and FGF23) and their cognate cell-surface FGF receptors (FGFR1-4) thereby stabilizing the endocrine FGF-FGFR complex. However, these hormones still require heparan sulfate (HS) proteoglycan as an additional coreceptor to induce FGFR dimerization/activation and hence elicit their essential metabolic activities. To reveal the molecular mechanism underpinning the coreceptor role of HS, we solved cryo-electron microscopy structures of three distinct 1:2:1:1 FGF23-FGFR-αKlotho-HS quaternary complexes featuring the 'c' splice isoforms of FGFR1 (FGFR1c), FGFR3 (FGFR3c) or FGFR4 as the receptor component. These structures, supported by cell-based receptor complementation and heterodimerization experiments, reveal that a single HS chain enables FGF23 and its primary FGFR within a 1:1:1 FGF23-FGFR-αKlotho ternary complex to jointly recruit a lone secondary FGFR molecule leading to asymmetric receptor dimerization and activation. However, αKlotho does not directly participate in recruiting the secondary receptor/dimerization. We also show that the asymmetric mode of receptor dimerization is applicable to paracrine FGFs that signal solely in an HS-dependent fashion. Our structural and biochemical data overturn the current symmetric FGFR dimerization paradigm and provide blueprints for rational discovery of modulators of FGF signalling as therapeutics for human metabolic diseases and cancer. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_34084.map.gz | 230 MB | EMDB map data format | |
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Header (meta data) | emd-34084-v30.xml emd-34084.xml | 18.6 KB 18.6 KB | Display Display | EMDB header |
Images | emd_34084.png | 101.5 KB | ||
Masks | emd_34084_msk_1.map | 244.1 MB | Mask map | |
Filedesc metadata | emd-34084.cif.gz | 6.7 KB | ||
Others | emd_34084_half_map_1.map.gz emd_34084_half_map_2.map.gz | 226.6 MB 226.6 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-34084 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-34084 | HTTPS FTP |
-Validation report
Summary document | emd_34084_validation.pdf.gz | 813.2 KB | Display | EMDB validaton report |
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Full document | emd_34084_full_validation.pdf.gz | 812.8 KB | Display | |
Data in XML | emd_34084_validation.xml.gz | 16 KB | Display | |
Data in CIF | emd_34084_validation.cif.gz | 19.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-34084 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-34084 | HTTPS FTP |
-Related structure data
Related structure data | 7yswMC 7yshC 7ysuC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_34084.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.096 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_34084_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_34084_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_34084_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : 1:2:1:1 FGF23-FGFR4-aKlotho-HS Quaternary Complex
Entire | Name: 1:2:1:1 FGF23-FGFR4-aKlotho-HS Quaternary Complex |
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Components |
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-Supramolecule #1: 1:2:1:1 FGF23-FGFR4-aKlotho-HS Quaternary Complex
Supramolecule | Name: 1:2:1:1 FGF23-FGFR4-aKlotho-HS Quaternary Complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: Homo sapiens (human) |
-Supramolecule #2: FGFR4-aKlotho-HS
Supramolecule | Name: FGFR4-aKlotho-HS / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#2 |
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-Supramolecule #3: FGF23
Supramolecule | Name: FGF23 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #3 |
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-Macromolecule #1: Fibroblast growth factor receptor 4
Macromolecule | Name: Fibroblast growth factor receptor 4 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: receptor protein-tyrosine kinase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 23.652729 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: YPQQAPYWTH PQRMEKKLHA VPAGNTVKFR CPAAGNPTPT IRWLKDGQAF HGENRIGGIR LRHQHWSLVM ESVVPSDRGT YTCLVENAV GSIRYNYLLD VLERSPHRPI LQAGLPANTT AVVGSDVELL CKVYSDAQPH IQWLKHIVIN GSSFGADGFP Y VQVLKTAD ...String: YPQQAPYWTH PQRMEKKLHA VPAGNTVKFR CPAAGNPTPT IRWLKDGQAF HGENRIGGIR LRHQHWSLVM ESVVPSDRGT YTCLVENAV GSIRYNYLLD VLERSPHRPI LQAGLPANTT AVVGSDVELL CKVYSDAQPH IQWLKHIVIN GSSFGADGFP Y VQVLKTAD INSSEVEVLY LRNVSAEDAG EYTCLAGNSI GLSYQSAWLT VLPEE UniProtKB: Fibroblast growth factor receptor 4 |
-Macromolecule #2: Klotho
Macromolecule | Name: Klotho / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: beta-glucuronidase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 108.404914 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: EPGDGAQTWA RFSRPPAPEA AGLFQGTFPD GFLWAVGSAA YQTEGGWQQH GKGASIWDTF THHPLAPPGD SRNASLPLGA PSPLQPATG DVASDSYNNV FRDTEALREL GVTHYRFSIS WARVLPNGSA GVPNREGLRY YRRLLERLRE LGVQPVVTLY H WDLPQRLQ ...String: EPGDGAQTWA RFSRPPAPEA AGLFQGTFPD GFLWAVGSAA YQTEGGWQQH GKGASIWDTF THHPLAPPGD SRNASLPLGA PSPLQPATG DVASDSYNNV FRDTEALREL GVTHYRFSIS WARVLPNGSA GVPNREGLRY YRRLLERLRE LGVQPVVTLY H WDLPQRLQ DAYGGWANRA LADHFRDYAE LCFRHFGGQV KYWITIDNPY VVAWHGYATG RLAPGIRGSP RLGYLVAHNL LL AHAKVWH LYNTSFRPTQ GGQVSIALSS HWINPRRMTD HSIKECQKSL DFVLGWFAKP VFIDGDYPES MKNNLSSILP DFT ESEKKF IKGTADFFAL CFGPTLSFQL LDPHMKFRQL ESPNLRQLLS WIDLEFNHPQ IFIVENGWFV SGTTKRDDAK YMYY LKKFI METLKAIKLD GVDVIGYTAW SLMDGFEWHR GYSIRRGLFY VDFLSQDKML LPKSSALFYQ KLIEKNGFPP LPENQ PLEG TFPCDFAWGV VDNYIQVDTT LSQFTDLNVY LWDVHHSKRL IKVDGVVTKK RKSYCVDFAA IQPQIALLQE MHVTHF RFS LDWALILPLG NQSQVNHTIL QYYRCMASEL VRVNITPVVA LWQPMAPNQG LPRLLARQGA WENPYTALAF AEYARLC FQ ELGHHVKLWI TMNEPYTRNM TYSAGHNLLK AHALAWHVYN EKFRHAQNGK ISIALQADWI EPACPFSQKD KEVAERVL E FDIGWLAEPI FGSGDYPWVM RDWLNQRNNF LLPYFTEDEK KLIQGTFDFL ALSHYTTILV DSEKEDPIKY NDYLEVQEM TDITWLNSPS QVAVVPWGLR KVLNWLKFKY GDLPMYIISN GIDDGLHAED DQLRVYYMQN YINEALKAHI LDGINLCGYF AYSFNDRTA PRFGLYRYAA DQFEPKASMK HYRKIIDSNG FPGPETLERF CPEEFTVCTE CSF UniProtKB: Klotho |
-Macromolecule #3: Fibroblast growth factor 23
Macromolecule | Name: Fibroblast growth factor 23 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 20.450064 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: YPNASPLLGS SWGGLIHLYT ATARNSYHLQ IHKNGHVDGA PHQTIYSALM IRSEDAGFVV ITGVMSRRYL CMDFRGNIFG SHYFDPENC RFQHQTLENG YDVYHSPQYH FLVSLGRAKR AFLPGMNPPP YSQFLSRRNE IPLIHFNTPI PRQHTQSAED D SERDPLNV LKPRARMTPA P UniProtKB: Fibroblast growth factor 23 |
-Macromolecule #5: COPPER (II) ION
Macromolecule | Name: COPPER (II) ION / type: ligand / ID: 5 / Number of copies: 1 / Formula: CU |
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Molecular weight | Theoretical: 63.546 Da |
Chemical component information | ChemComp-CU: |
-Macromolecule #6: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 6 / Number of copies: 1 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 53.84 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.8000000000000003 µm / Nominal defocus min: 0.7000000000000001 µm |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.03 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 856877 |
Initial angle assignment | Type: NOT APPLICABLE |
Final angle assignment | Type: NOT APPLICABLE |