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- PDB-7yq3: human insulin receptor bound with A43 DNA aptamer and insulin -

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Basic information

Entry
Database: PDB / ID: 7yq3
Titlehuman insulin receptor bound with A43 DNA aptamer and insulin
Components
  • IR-A43 aptamer
  • Insulin A chain
  • Insulin, isoform 2
  • Isoform Short of Insulin receptor
KeywordsSTRUCTURAL PROTEIN / receptor-ligand complex
Function / homology
Function and homology information


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 ...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 / : / cargo receptor activity / negative regulation of glycogen catabolic process / negative regulation of fatty acid metabolic process / Signaling by Insulin receptor / PTB domain binding / IRS activation / Insulin processing / regulation of protein secretion / negative regulation of feeding behavior / positive regulation of peptide hormone secretion / negative regulation of acute inflammatory response / Regulation of gene expression in beta cells / positive regulation of respiratory burst / neuronal cell body membrane / alpha-beta T cell activation / amyloid-beta clearance / heart morphogenesis / positive regulation of receptor internalization / insulin receptor substrate binding / Synthesis, secretion, and deacylation of Ghrelin / negative regulation of gluconeogenesis / negative regulation of protein secretion / positive regulation of dendritic spine maintenance / fatty acid homeostasis / positive regulation of brown fat cell differentiation / positive regulation of glycogen biosynthetic process / positive regulation of insulin receptor signaling pathway / Signal attenuation / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / positive regulation of lipid biosynthetic process / negative regulation of respiratory burst involved in inflammatory response / protein kinase activator activity / negative regulation of lipid catabolic process / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / nitric oxide-cGMP-mediated signaling / regulation of protein localization to plasma membrane / transport vesicle / phosphatidylinositol 3-kinase binding / transport across blood-brain barrier / Insulin receptor recycling / COPI-mediated anterograde transport / positive regulation of nitric-oxide synthase activity / negative regulation of reactive oxygen species biosynthetic process / insulin-like growth factor receptor binding / NPAS4 regulates expression of target genes / positive regulation of D-glucose import across plasma membrane / positive regulation of mitotic nuclear division / neuron projection maintenance / male gonad development / endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated endocytosis / positive regulation of glycolytic process / learning / Insulin receptor signalling cascade / regulation of embryonic development / dendrite membrane / endosome lumen / positive regulation of protein secretion / acute-phase response / positive regulation of cytokine production / wound healing / insulin receptor binding / positive regulation of long-term synaptic potentiation / positive regulation of neuron projection development / glucose metabolic process / positive regulation of cell differentiation / negative regulation of protein catabolic process / Regulation of insulin secretion / memory / regulation of synaptic plasticity / receptor protein-tyrosine kinase / hormone activity / positive regulation of protein localization to nucleus / vasodilation / caveola / Golgi lumen / cognition / insulin receptor signaling pathway / positive regulation of nitric oxide biosynthetic process / glucose homeostasis / cellular response to insulin stimulus / late endosome / regulation of protein localization / cell-cell signaling / protein autophosphorylation / positive regulation of cell growth / amyloid-beta binding / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling
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 / Alpha-Beta Horseshoe / Tyrosine-protein kinase, receptor class II, conserved site / Receptor tyrosine kinase class II signature. ...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 / Alpha-Beta Horseshoe / Tyrosine-protein kinase, receptor class II, conserved site / Receptor tyrosine kinase class II signature. / Insulin / Insulin family / Insulin-like / Insulin/IGF/Relaxin family / Insulin / insulin-like growth factor / relaxin family. / Insulin, conserved site / Insulin family signature. / Insulin-like superfamily / 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 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 / 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 / Immunoglobulins / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily / Immunoglobulin-like / Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
DNA / DNA (> 10) / Insulin, isoform 2 / Insulin / Insulin receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsKim, J. / Yunn, N. / Ryu, S. / Cho, Y.
Funding support Korea, Republic Of, 1items
OrganizationGrant numberCountry
National Research Foundation (NRF, Korea)2017M3A9F6029736 Korea, Republic Of
CitationJournal: Nat Commun / Year: 2022
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.
History
DepositionAug 5, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Nov 9, 2022Provider: repository / Type: Initial release
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Revision 1.1May 8, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / citation
Item: _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Nov 20, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 1.3Jul 2, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Insulin A chain
B: Insulin, isoform 2
E: Isoform Short of Insulin receptor
F: Isoform Short of Insulin receptor
G: IR-A43 aptamer


Theoretical massNumber of molelcules
Total (without water)222,0885
Polymers222,0885
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: assay for oligomerization
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein/peptide Insulin A chain / Small chain


Mass: 2383.698 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INS / Cell line (production host): HEK293F / Production host: Homo sapiens (human) / References: UniProt: P01308
#2: Protein/peptide Insulin, isoform 2 / INS-IGF2 readthrough transcript protein


Mass: 2860.250 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INS-IGF2 / Cell line (production host): HEK293F / Production host: Homo sapiens (human) / References: UniProt: F8WCM5
#3: Protein Isoform Short of Insulin receptor / IR


Mass: 103623.578 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INSR / Cell line (production host): HEK293F / Production host: Homo sapiens (human)
References: UniProt: P06213, receptor protein-tyrosine kinase
#4: DNA chain IR-A43 aptamer


Mass: 9596.608 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
Has ligand of interestY
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

Component
IDNameTypeEntity IDParent-IDSource
1receptor-ligand complexCOMPLEXall0MULTIPLE SOURCES
2Insulin, Insulin receptorCOMPLEX#1-#31RECOMBINANT
3DNA 28merCOMPLEX#41SYNTHETIC
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.14_3260: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 156334 / Symmetry type: POINT

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