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Open data
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Basic information
Entry | Database: PDB / ID: 7yq6 | ||||||
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Title | human insulin receptor bound with A62 DNA aptamer | ||||||
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![]() | STRUCTURAL PROTEIN / receptor-ligand complex_C | ||||||
Function / homology | ![]() regulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / male sex determination / exocrine pancreas development / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly ...regulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / male sex determination / exocrine pancreas development / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly / cargo receptor activity / dendritic spine maintenance / insulin binding / PTB domain binding / adrenal gland development / Signaling by Insulin receptor / IRS activation / activation of protein kinase activity / neuronal cell body membrane / amyloid-beta clearance / positive regulation of respiratory burst / positive regulation of receptor internalization / regulation of embryonic development / insulin receptor substrate binding / transport across blood-brain barrier / positive regulation of glycogen biosynthetic process / epidermis development / Signal attenuation / phosphatidylinositol 3-kinase binding / heart morphogenesis / Insulin receptor recycling / insulin-like growth factor receptor binding / dendrite membrane / neuron projection maintenance / activation of protein kinase B activity / positive regulation of glycolytic process / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / receptor-mediated endocytosis / learning / caveola / positive regulation of glucose import / positive regulation of MAP kinase activity / receptor protein-tyrosine kinase / receptor internalization / memory / cellular response to growth factor stimulus / peptidyl-tyrosine phosphorylation / cellular response to insulin stimulus / male gonad development / positive regulation of nitric oxide biosynthetic process / late endosome / insulin receptor signaling pathway / glucose homeostasis / amyloid-beta binding / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / protein tyrosine kinase activity / positive regulation of MAPK cascade / protein autophosphorylation / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / receptor complex / lysosome / endosome membrane / positive regulation of cell migration / symbiont entry into host cell / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / protein domain specific binding / external side of plasma membrane / axon / protein phosphorylation / positive regulation of cell population proliferation / regulation of DNA-templated transcription / protein-containing complex binding / GTP binding / positive regulation of DNA-templated transcription / extracellular exosome / ATP binding / identical protein binding / membrane / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.18 Å | ||||||
![]() | Kim, J. / Yunn, N. / Ryu, S. / Cho, Y. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Functional selectivity of insulin receptor revealed by aptamer-trapped receptor structures. Authors: Junhong Kim / Na-Oh Yunn / Mangeun Park / Jihan Kim / Seongeun Park / Yoojoong Kim / Jeongeun Noh / Sung Ho Ryu / Yunje Cho / ![]() Abstract: Activation of insulin receptor (IR) initiates a cascade of conformational changes and autophosphorylation events. Herein, we determined three structures of IR trapped by aptamers using cryo-electron ...Activation of insulin receptor (IR) initiates a cascade of conformational changes and autophosphorylation events. Herein, we determined three structures of IR trapped by aptamers using cryo-electron microscopy. The A62 agonist aptamer selectively activates metabolic signaling. In the absence of insulin, the two A62 aptamer agonists of IR adopt an insulin-accessible arrowhead conformation by mimicking site-1/site-2' insulin coordination. Insulin binding at one site triggers conformational changes in one protomer, but this movement is blocked in the other protomer by A62 at the opposite site. A62 binding captures two unique conformations of IR with a similar stalk arrangement, which underlie Tyr1150 mono-phosphorylation (m-pY1150) and selective activation for metabolic signaling. The A43 aptamer, a positive allosteric modulator, binds at the opposite side of the insulin-binding module, and stabilizes the single insulin-bound IR structure that brings two FnIII-3 regions into closer proximity for full activation. Our results suggest that spatial proximity of the two FnIII-3 ends is important for m-pY1150, but multi-phosphorylation of IR requires additional conformational rearrangement of intracellular domains mediated by coordination between extracellular and transmembrane domains. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 326.6 KB | Display | ![]() |
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PDB format | ![]() | 265 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 34021MC ![]() 7yq3C ![]() 7yq4C ![]() 7yq5C ![]() 8guyC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 103623.578 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P06213, receptor protein-tyrosine kinase #2: DNA chain | Mass: 8526.799 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) Has ligand of interest | 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
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Source (natural) | Organism: ![]() | ||||||||||||||||||||||||
Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1500 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.14_3260: / Classification: refinement |
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CTF correction | Type: NONE |
3D reconstruction | Resolution: 4.18 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 181797 / Symmetry type: POINT |