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- PDB-8dtm: Cryo-EM structure of insulin receptor (IR) bound with S597 component 2 -

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Basic information

Entry
Database: PDB / ID: 8dtm
TitleCryo-EM structure of insulin receptor (IR) bound with S597 component 2
Components
  • Insulin mimetic peptide S597 component 2
  • Insulin receptor
KeywordsSIGNALING PROTEIN
Function / homology
Function and homology information


Signaling by Insulin receptor / yolk / IRS activation / Insulin receptor signalling cascade / Signal attenuation / Insulin receptor recycling / 3-phosphoinositide-dependent protein kinase binding / positive regulation of glycoprotein biosynthetic process / lipoic acid binding / regulation of female gonad development ...Signaling by Insulin receptor / yolk / IRS activation / Insulin receptor signalling cascade / Signal attenuation / Insulin receptor recycling / 3-phosphoinositide-dependent protein kinase binding / positive regulation of glycoprotein biosynthetic process / lipoic acid binding / regulation of female gonad development / regulation of hydrogen peroxide metabolic process / positive regulation of meiotic cell cycle / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / nuclear lumen / positive regulation of developmental growth / insulin-like growth factor II binding / 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 / negative regulation of feeding behavior / 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 / positive regulation of glycogen biosynthetic process / epidermis development / response to tumor necrosis factor / phosphatidylinositol 3-kinase binding / heart morphogenesis / positive regulation of phosphorylation / dendrite membrane / neuron projection maintenance / positive regulation of glycolytic process / positive regulation of mitotic nuclear division / response to nutrient levels / receptor-mediated endocytosis / negative regulation of protein phosphorylation / caveola / positive regulation of glucose import / animal organ morphogenesis / insulin-like growth factor receptor binding / receptor internalization / receptor protein-tyrosine kinase / cellular response to growth factor stimulus / recycling endosome membrane / male gonad development / positive regulation of nitric oxide biosynthetic process / late endosome / insulin receptor signaling pathway / glucose homeostasis / nuclear envelope / amyloid-beta binding / protein phosphatase binding / protein tyrosine kinase activity / positive regulation of MAPK cascade / protein autophosphorylation / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / lysosome / receptor complex / protein kinase activity / endosome / 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 / negative regulation of gene expression / neuronal cell body / positive regulation of cell population proliferation / protein-containing complex binding / GTP binding / protein kinase binding / positive regulation of DNA-templated transcription / ATP binding / membrane / plasma membrane
Similarity search - Function
Insulin receptor, trans-membrane domain / Insulin receptor trans-membrane segment / Tyrosine-protein kinase, insulin-like receptor / Tyrosine-protein kinase, receptor class II, conserved site / Receptor tyrosine kinase class II signature. / Receptor L-domain / Furin-like cysteine-rich domain / Receptor L-domain superfamily / Furin-like cysteine rich region / Receptor L domain ...Insulin receptor, trans-membrane domain / Insulin receptor trans-membrane segment / Tyrosine-protein kinase, insulin-like receptor / Tyrosine-protein kinase, receptor class II, conserved site / Receptor tyrosine kinase class II signature. / Receptor L-domain / Furin-like cysteine-rich domain / Receptor L-domain superfamily / Furin-like cysteine rich region / Receptor L domain / Furin-like repeat / Furin-like repeats / Growth factor receptor cysteine-rich domain superfamily / Fibronectin type III domain / Fibronectin type 3 domain / Fibronectin type-III domain profile. / Fibronectin type III / Fibronectin type III superfamily / Tyrosine-protein kinase, catalytic domain / Tyrosine kinase, catalytic domain / Tyrosine protein kinases specific active-site signature. / Tyrosine-protein kinase, active site / Protein tyrosine and serine/threonine kinase / Serine-threonine/tyrosine-protein kinase, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Immunoglobulin-like fold / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Biological speciesMus musculus (house mouse)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsPark, J. / Li, J. / Mayer, J.P. / Ball, K.A. / Wu, J.Y. / Hall, C. / Accili, D. / Stowell, M.H.B. / Bai, X.C. / Choi, E.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM136976 United States
CitationJournal: Nat Commun / Year: 2022
Title: Activation of the insulin receptor by an insulin mimetic peptide.
Authors: Junhee Park / Jie Li / John P Mayer / Kerri A Ball / Jiayi Wu / Catherine Hall / Domenico Accili / Michael H B Stowell / Xiao-Chen Bai / Eunhee Choi /
Abstract: Insulin receptor (IR) signaling defects cause a variety of metabolic diseases including diabetes. Moreover, inherited mutations of the IR cause severe insulin resistance, leading to early morbidity ...Insulin receptor (IR) signaling defects cause a variety of metabolic diseases including diabetes. Moreover, inherited mutations of the IR cause severe insulin resistance, leading to early morbidity and mortality with limited therapeutic options. A previously reported selective IR agonist without sequence homology to insulin, S597, activates IR and mimics insulin's action on glycemic control. To elucidate the mechanism of IR activation by S597, we determine cryo-EM structures of the mouse IR/S597 complex. Unlike the compact T-shaped active IR resulting from the binding of four insulins to two distinct sites, two S597 molecules induce and stabilize an extended T-shaped IR through the simultaneous binding to both the L1 domain of one protomer and the FnIII-1 domain of another. Importantly, S597 fully activates IR mutants that disrupt insulin binding or destabilize the insulin-induced compact T-shape, thus eliciting insulin-like signaling. S597 also selectively activates IR signaling among different tissues and triggers IR endocytosis in the liver. Overall, our structural and functional studies guide future efforts to develop insulin mimetics targeting insulin resistance caused by defects in insulin binding and stabilization of insulin-activated state of IR, demonstrating the potential of structure-based drug design for insulin-resistant diseases.
History
DepositionJul 26, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 7, 2022Provider: repository / Type: Initial release
Revision 1.1Oct 12, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Insulin receptor
B: Insulin receptor
C: Insulin mimetic peptide S597 component 2


Theoretical massNumber of molelcules
Total (without water)308,7523
Polymers308,7523
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Insulin receptor / IR


Mass: 153232.578 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Insr / Production host: Homo sapiens (human)
References: UniProt: P15208, receptor protein-tyrosine kinase
#2: Protein/peptide Insulin mimetic peptide S597 component 2


Mass: 2286.474 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Insulin receptor bound with S597 component 2 / Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenConc.: 6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2600 nm / Nominal defocus min: 1600 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV

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Processing

EM software
IDNameCategory
1RELIONparticle selection
2SerialEMimage acquisition
4GctfCTF correction
7UCSF Chimeramodel fitting
9PHENIXmodel refinement
11RELIONfinal Euler assignment
12RELIONclassification
13RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 2789169
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 135709 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT

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