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Yorodumi- PDB-7u6d: Head region of insulin receptor ectodomain (A-isoform) bound to t... -
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Basic information
| Entry | Database: PDB / ID: 7u6d | |||||||||||||||||||||
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| Title | Head region of insulin receptor ectodomain (A-isoform) bound to the non-insulin agonist IM459 | |||||||||||||||||||||
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Keywords | SIGNALING PROTEIN/AGONIST / insulin receptor / insulin-mimic peptide / insulin receptor agonist / SIGNALING PROTEIN-AGONIST complex | |||||||||||||||||||||
| Function / homology | Function and homology informationregulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly / adrenal gland development / dendritic spine maintenance ...regulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly / adrenal gland development / dendritic spine maintenance / insulin binding / Signaling by Insulin receptor / PTB domain binding / IRS activation / cargo receptor activity / neuronal cell body membrane / positive regulation of respiratory burst / amyloid-beta clearance / heart morphogenesis / positive regulation of receptor internalization / insulin receptor substrate binding / positive regulation of glycogen biosynthetic process / Signal attenuation / protein kinase activator activity / phosphatidylinositol 3-kinase binding / Insulin receptor recycling / transport across blood-brain barrier / insulin-like growth factor receptor binding / positive regulation of D-glucose import across plasma membrane / positive regulation of mitotic nuclear division / neuron projection maintenance / receptor-mediated endocytosis / male gonad development / positive regulation of glycolytic process / regulation of embryonic development / Insulin receptor signalling cascade / learning / dendrite membrane / memory / receptor protein-tyrosine kinase / caveola / insulin receptor signaling pathway / positive regulation of nitric oxide biosynthetic process / cellular response to insulin stimulus / glucose homeostasis / late endosome / protein autophosphorylation / amyloid-beta binding / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / protein tyrosine kinase activity / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of canonical NF-kappaB signal transduction / positive regulation of MAPK cascade / signaling receptor complex / lysosome / endosome membrane / positive regulation of cell migration / G protein-coupled receptor signaling pathway / protein domain specific binding / external side of plasma membrane / axon / positive regulation of cell population proliferation / symbiont entry into host cell / regulation of DNA-templated transcription / GTP binding / positive regulation of DNA-templated transcription / protein-containing complex binding / extracellular exosome / ATP binding / membrane / identical protein binding / plasma membrane Similarity search - Function | |||||||||||||||||||||
| Biological species | Homo sapiens (human)synthetic construct (others) | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.03 Å | |||||||||||||||||||||
Authors | Kirk, N.S. / Lawrence, M.C. | |||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2022Title: Activation of the human insulin receptor by non-insulin-related peptides. Authors: Nicholas S Kirk / Qi Chen / Yingzhe Ginger Wu / Anastasia L Asante / Haitao Hu / Juan F Espinosa / Francisco Martínez-Olid / Mai B Margetts / Faiz A Mohammed / Vladislav V Kiselyov / David ...Authors: Nicholas S Kirk / Qi Chen / Yingzhe Ginger Wu / Anastasia L Asante / Haitao Hu / Juan F Espinosa / Francisco Martínez-Olid / Mai B Margetts / Faiz A Mohammed / Vladislav V Kiselyov / David G Barrett / Michael C Lawrence / ![]() Abstract: The human insulin receptor signalling system plays a critical role in glucose homeostasis. Insulin binding brings about extensive conformational change in the receptor extracellular region that in ...The human insulin receptor signalling system plays a critical role in glucose homeostasis. Insulin binding brings about extensive conformational change in the receptor extracellular region that in turn effects trans-activation of the intracellular tyrosine kinase domains and downstream signalling. Of particular therapeutic interest is whether insulin receptor signalling can be replicated by molecules other than insulin. Here, we present single-particle cryoEM structures that show how a 33-mer polypeptide unrelated to insulin can cross-link two sites on the receptor surface and direct the receptor into a signalling-active conformation. The 33-mer polypeptide engages the receptor by two helical binding motifs that are each potentially mimicable by small molecules. The resultant conformation of the receptor is distinct from-but related to-those in extant three-dimensional structures of the insulin-complexed receptor. Our findings thus illuminate unexplored pathways for controlling the signalling of the insulin receptor as well as opportunities for development of insulin mimetics. | |||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7u6d.cif.gz | 202.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7u6d.ent.gz | 146.1 KB | Display | PDB format |
| PDBx/mmJSON format | 7u6d.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/u6/7u6d ftp://data.pdbj.org/pub/pdb/validation_reports/u6/7u6d | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 26363MC ![]() 7u6eC ![]() 8di2C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein/peptide | Mass: 4000.595 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) | ||||
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| #2: Protein | Mass: 104607.664 Da / Num. of mol.: 2 / Fragment: ectodomain (UNP residues 28-943) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: INSR / Production host: ![]() References: UniProt: P06213, receptor protein-tyrosine kinase Has ligand of interest | N | Has protein modification | Y | |
-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: Complex of non-insulin insulin receptor agonist IM459 bound to the insulin receptor ectodomain (A-isoform) construct IR-A(ecto) Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 8 |
| 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: 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 / Nominal defocus max: 4000 nm / Nominal defocus min: 500 nm |
| Image recording | Electron dose: 69.5 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 5.03 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 184000 / Symmetry type: POINT | ||||||||||||||||||||||||
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About Yorodumi



Homo sapiens (human)
United States, 1items
Citation





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FIELD EMISSION GUN