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- PDB-6q2o: Cryo-EM structure of RET/GFRa2/NRTN extracellular complex. The 3D... -
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Basic information
Entry | Database: PDB / ID: 6q2o | ||||||
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Title | Cryo-EM structure of RET/GFRa2/NRTN extracellular complex. The 3D refinement was applied with C2 symmetry. | ||||||
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![]() | SIGNALING PROTEIN / RET / receptor tyrosine kinase / cryo-EM | ||||||
Function / homology | ![]() glial cell-derived neurotrophic factor receptor activity / glial cell-derived neurotrophic factor receptor binding / 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 ...glial cell-derived neurotrophic factor receptor activity / glial cell-derived neurotrophic factor receptor binding / 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 / membrane protein proteolysis / Formation of the ureteric bud / positive regulation of neuron maturation / neuron cell-cell adhesion / Formation of the nephric duct / enteric nervous system development / nerve development / innervation / plasma membrane protein complex / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / neuron maturation / NCAM1 interactions / heparan sulfate binding / positive regulation of cell adhesion mediated by integrin / neural crest cell migration / extrinsic component of membrane / ureteric bud development / regulation of axonogenesis / response to pain / homophilic cell adhesion via plasma membrane adhesion molecules / RET signaling / positive regulation of cell size / regulation of cell adhesion / cellular response to retinoic acid / transmembrane receptor protein tyrosine kinase activity / NPAS4 regulates expression of target genes / axon guidance / : / growth factor activity / placental growth factor receptor activity / insulin receptor activity / vascular endothelial growth factor receptor activity / hepatocyte growth factor receptor activity / macrophage colony-stimulating factor receptor activity / platelet-derived growth factor alpha-receptor activity / platelet-derived growth factor beta-receptor activity / stem cell factor receptor activity / boss receptor activity / protein tyrosine kinase collagen receptor activity / brain-derived neurotrophic factor receptor activity / GPI-linked ephrin receptor activity / transmembrane-ephrin receptor activity / epidermal growth factor receptor activity / fibroblast growth factor receptor activity / insulin-like growth factor receptor activity / receptor protein-tyrosine kinase / receptor tyrosine kinase binding / positive regulation of neuron projection development / cell surface receptor protein tyrosine kinase signaling pathway / neuron projection development / MAPK cascade / signaling receptor activity / nervous system development / retina development in camera-type eye / protein tyrosine kinase activity / RAF/MAP kinase cascade / histone H3Y41 kinase activity / histone H2AXY142 kinase activity / positive regulation of MAPK cascade / early endosome / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / receptor complex / endosome membrane / positive regulation of cell migration / protein phosphorylation / response to xenobiotic stimulus / axon / external side of plasma membrane / signaling receptor binding / neuronal cell body / dendrite / calcium ion binding / positive regulation of gene expression / positive regulation of DNA-templated transcription / signal transduction / extracellular space / extracellular region / ATP binding / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.65 Å | ||||||
![]() | Li, J. / Shang, G.J. / Chen, Y.J. / Brautigam, C.A. / Liou, J. / Zhang, X.W. / Bai, X.C. | ||||||
![]() | ![]() Title: 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: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 353.9 KB | Display | ![]() |
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PDB format | ![]() | 280.5 KB | Display | ![]() |
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-Validation report
Summary document | ![]() | 1.4 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 52.4 KB | Display | |
Data in CIF | ![]() | 79.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 20576MC ![]() 6q2jC ![]() 6q2nC ![]() 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: 11706.406 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 39572.633 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #3: Protein | Mass: 69100.812 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P07949, receptor protein-tyrosine kinase #4: Chemical | ChemComp-CA / #5: Sugar | ChemComp-NAG / 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: ![]() |
Source (recombinant) | Organism: ![]() |
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: ![]() |
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
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.65 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 247157 / Symmetry type: POINT | ||||||||||||||||||||||||||||||
Atomic model building | B value: 190 / Protocol: FLEXIBLE FIT / Space: REAL |