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Open data
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Basic information
| Entry | Database: PDB / ID: 6q2n | ||||||
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| Title | Cryo-EM structure of RET/GFRa1/GDNF extracellular complex | ||||||
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Keywords | SIGNALING PROTEIN / RET / receptor tyrosine kinase / cryo-EM | ||||||
| Function / homology | Function and homology informationchemoattractant activity involved in axon guidance / mesenchymal to epithelial transition involved in metanephros morphogenesis / dorsal spinal cord development / positive regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis / ureteric bud formation / positive regulation of ureteric bud formation / regulation of semaphorin-plexin signaling pathway / postganglionic parasympathetic fiber development / glial cell-derived neurotrophic factor receptor activity / glial cell-derived neurotrophic factor receptor binding ...chemoattractant activity involved in axon guidance / mesenchymal to epithelial transition involved in metanephros morphogenesis / dorsal spinal cord development / positive regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis / ureteric bud formation / positive regulation of ureteric bud formation / regulation of semaphorin-plexin signaling pathway / postganglionic parasympathetic fiber development / glial cell-derived neurotrophic factor receptor activity / glial cell-derived neurotrophic factor receptor binding / postsynaptic membrane organization / Peyer's patch morphogenesis / GDF15-GFRAL signaling pathway / positive regulation of metanephric glomerulus development / ureter maturation / embryonic epithelial tube formation / glial cell-derived neurotrophic factor receptor signaling pathway / lymphocyte migration into lymphoid organs / posterior midgut development / regulation of morphogenesis of a branching structure / neurotrophin receptor activity / regulation of dopamine uptake involved in synaptic transmission / Formation of the ureteric bud / membrane protein proteolysis / Formation of the nephric duct / peristalsis / enteric nervous system development / neuron cell-cell adhesion / positive regulation of dopamine secretion / sympathetic nervous system development / positive regulation of branching involved in ureteric bud morphogenesis / organ induction / peripheral nervous system development / plasma membrane protein complex / commissural neuron axon guidance / metanephros development / NCAM1 interactions / neuron maturation / regulation of stem cell differentiation / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / mRNA stabilization / positive regulation of cell adhesion mediated by integrin / neural crest cell migration / extrinsic component of membrane / ureteric bud development / regulation of axonogenesis / branching involved in ureteric bud morphogenesis / response to pain / homophilic cell-cell adhesion / RET signaling / positive regulation of cell size / embryonic organ development / negative regulation of extrinsic apoptotic signaling pathway in absence of ligand / regulation of cell adhesion / cellular response to retinoic acid / NPAS4 regulates expression of target genes / multivesicular body / transmembrane receptor protein tyrosine kinase activity / axon guidance / cell surface receptor protein tyrosine kinase signaling pathway / adult locomotory behavior / growth factor activity / positive regulation of cell differentiation / kidney development / positive regulation of neuron projection development / receptor protein-tyrosine kinase / receptor tyrosine kinase binding / male gonad development / integrin binding / neuron projection development / cell migration / nervous system development / signaling receptor activity / MAPK cascade / regulation of gene expression / RAF/MAP kinase cascade / protein tyrosine kinase activity / negative regulation of neuron apoptotic process / cell surface receptor signaling pathway / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / receptor complex / positive regulation of MAPK cascade / endosome membrane / positive regulation of cell migration / signaling receptor binding / axon / external side of plasma membrane / neuronal cell body / positive regulation of cell population proliferation / calcium ion binding / positive regulation of gene expression / negative regulation of apoptotic process / positive regulation of DNA-templated transcription / Golgi apparatus / signal transduction / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / extracellular space / extracellular exosome / extracellular region Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | ||||||
Authors | Li, J. / Shang, G.J. / Chen, Y.J. / Brautigam, C.A. / Liou, J. / Zhang, X.W. / Bai, X.C. | ||||||
Citation | Journal: Elife / Year: 2019Title: Cryo-EM analyses reveal the common mechanism and diversification in the activation of RET by different ligands. Authors: Jie Li / Guijun Shang / Yu-Ju Chen / Chad A Brautigam / Jen Liou / Xuewu Zhang / Xiao-Chen Bai / ![]() Abstract: RET is a receptor tyrosine kinase (RTK) that plays essential roles in development and has been implicated in several human diseases. Different from most of RTKs, RET requires not only its cognate ...RET is a receptor tyrosine kinase (RTK) that plays essential roles in development and has been implicated in several human diseases. Different from most of RTKs, RET requires not only its cognate ligands but also co-receptors for activation, the mechanisms of which remain unclear due to lack of high-resolution structures of the ligand/co-receptor/receptor complexes. Here, we report cryo-EM structures of the extracellular region ternary complexes of GDF15/GFRAL/RET, GDNF/GFRα1/RET, NRTN/GFRα2/RET and ARTN/GFRα3/RET. These structures reveal that all the four ligand/co-receptor pairs, while using different atomic interactions, induce a specific dimerization mode of RET that is poised to bring the two kinase domains into close proximity for cross-phosphorylation. The NRTN/GFRα2/RET dimeric complex further pack into a tetrameric assembly, which is shown by our cell-based assays to regulate the endocytosis of RET. Our analyses therefore reveal both the common mechanism and diversification in the activation of RET by different ligands. | ||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6q2n.cif.gz | 320.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6q2n.ent.gz | 246.9 KB | Display | PDB format |
| PDBx/mmJSON format | 6q2n.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6q2n_validation.pdf.gz | 966.3 KB | Display | wwPDB validaton report |
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| Full document | 6q2n_full_validation.pdf.gz | 990.2 KB | Display | |
| Data in XML | 6q2n_validation.xml.gz | 50.2 KB | Display | |
| Data in CIF | 6q2n_validation.cif.gz | 76.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/q2/6q2n ftp://data.pdbj.org/pub/pdb/validation_reports/q2/6q2n | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 20575MC ![]() 6q2jC ![]() 6q2oC ![]() 6q2rC ![]() 6q2sC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 15096.242 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GDNF / Production host: ![]() #2: Protein | Mass: 46358.551 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GFRA1, GDNFRA, RETL1, TRNR1 / Production host: Homo sapiens (human) / References: UniProt: P56159#3: Protein | Mass: 69100.812 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RET, CDHF12, CDHR16, PTC, RET51 / Production host: Homo sapiens (human)References: UniProt: P07949, receptor protein-tyrosine kinase #4: Chemical | ChemComp-CA / Has ligand of interest | Y | Has protein modification | Y | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: RET, GFRAL and GDF15 extracellular complex / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Molecular weight | Value: 200 kDa/nm / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Calibrated magnification: 46729 X / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Average exposure time: 15 sec. / Electron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Num. of grids imaged: 1 |
| EM imaging optics | Energyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV |
| Image scans | Movie frames/image: 30 / Used frames/image: 1-30 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 37098 / Symmetry type: POINT | ||||||||||||||||||||||||||||||
| Atomic model building | B value: 190 / Protocol: FLEXIBLE FIT / Space: REAL |
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