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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 / IRS activation / Insulin receptor signalling cascade / Signal attenuation / Insulin receptor recycling / regulation of female gonad development / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth ...Signaling by Insulin receptor / IRS activation / Insulin receptor signalling cascade / Signal attenuation / Insulin receptor recycling / regulation of female gonad development / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / male sex determination / insulin receptor complex / exocrine pancreas development / insulin-like growth factor I binding / nuclear lumen / insulin binding / PTB domain binding / adrenal gland development / positive regulation of respiratory burst / regulation of embryonic development / positive regulation of receptor internalization / protein kinase activator activity / insulin receptor substrate binding / epidermis development / positive regulation of glycogen biosynthetic process / phosphatidylinositol 3-kinase binding / heart morphogenesis / insulin-like growth factor receptor binding / placental growth factor receptor activity / insulin receptor activity / vascular endothelial growth factor receptor activity / macrophage colony-stimulating factor receptor activity / platelet-derived growth factor alpha-receptor activity / stem cell factor receptor activity / boss receptor activity / protein tyrosine kinase collagen receptor activity / brain-derived neurotrophic factor receptor activity / platelet-derived growth factor beta-receptor activity / fibroblast growth factor receptor activity / GPI-linked ephrin receptor activity / transmembrane-ephrin receptor activity / insulin-like growth factor receptor activity / positive regulation of mitotic nuclear division / hepatocyte growth factor receptor activity / positive regulation of glycolytic process / animal organ morphogenesis / positive regulation of D-glucose import / epidermal growth factor receptor activity / cellular response to growth factor stimulus / receptor protein-tyrosine kinase / caveola / receptor internalization / recycling endosome membrane / male gonad development / positive regulation of nitric oxide biosynthetic process / nuclear envelope / late endosome / glucose homeostasis / insulin receptor signaling pathway / histone H2AXY142 kinase activity / histone H3Y41 kinase activity / amyloid-beta binding / protein tyrosine kinase activity / protein autophosphorylation / positive regulation of MAPK cascade / lysosome / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / receptor complex / positive regulation of cell migration / G protein-coupled receptor signaling pathway / symbiont entry into host cell / positive regulation of cell population proliferation / protein-containing complex binding / GTP binding / positive regulation of DNA-templated transcription / ATP binding / membrane / plasma membrane
Similarity search - Function
Hormone Receptor, Insulin-like Growth Factor Receptor 1; Chain A domain 2 / Hormone Receptor, Insulin-like Growth Factor Receptor 1; Chain A, domain 2 / 24 nucleotide stem-loop, u2 snrnp hairpin iv. U2 a'; Chain A / 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. / Alpha-Beta Horseshoe ...Hormone Receptor, Insulin-like Growth Factor Receptor 1; Chain A domain 2 / Hormone Receptor, Insulin-like Growth Factor Receptor 1; Chain A, domain 2 / 24 nucleotide stem-loop, u2 snrnp hairpin iv. U2 a'; Chain A / 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. / Alpha-Beta Horseshoe / 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 / Ribbon / Tyrosine-protein kinase, catalytic domain / Tyrosine kinase, catalytic domain / Tyrosine protein kinases specific active-site signature. / Tyrosine-protein kinase, active site / Serine-threonine/tyrosine-protein kinase, catalytic domain / Protein tyrosine and serine/threonine kinase / 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 / Mainly Beta / Alpha Beta
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
Revision 1.2Oct 23, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update

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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)
Has protein modificationY

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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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