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- PDB-6hn4: Leucine-zippered human insulin receptor ectodomain with single bo... -
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Basic information
Entry | Database: PDB / ID: 6hn4 | |||||||||||||||
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Title | Leucine-zippered human insulin receptor ectodomain with single bound insulin - "lower" membrane-proximal part | |||||||||||||||
![]() | Insulin receptor,Insulin receptor,General control protein GCN4 | |||||||||||||||
![]() | SIGNALING PROTEIN / insulin / insulin receptor ectodomain / signal transdution | |||||||||||||||
Function / homology | ![]() regulation of female gonad development / nitrogen catabolite activation of transcription from RNA polymerase II promoter / positive regulation of meiotic cell cycle / FCERI mediated MAPK activation / protein localization to nuclear periphery / Activation of the AP-1 family of transcription factors / response to amino acid starvation / negative regulation of ribosomal protein gene transcription by RNA polymerase II / positive regulation of cellular response to amino acid starvation / insulin-like growth factor II binding ...regulation of female gonad development / nitrogen catabolite activation of transcription from RNA polymerase II promoter / positive regulation of meiotic cell cycle / FCERI mediated MAPK activation / protein localization to nuclear periphery / Activation of the AP-1 family of transcription factors / response to amino acid starvation / negative regulation of ribosomal protein gene transcription by RNA polymerase II / positive regulation of cellular response to amino acid starvation / insulin-like growth factor II binding / positive regulation of developmental growth / mediator complex binding / male sex determination / insulin receptor complex / exocrine pancreas development / insulin-like growth factor I binding / Oxidative Stress Induced Senescence / positive regulation of protein-containing complex disassembly / dendritic spine maintenance / cargo receptor activity / insulin binding / PTB domain binding / adrenal gland development / neuronal cell body membrane / Signaling by Insulin receptor / IRS activation / positive regulation of respiratory burst / amyloid-beta clearance / TFIID-class transcription factor complex binding / regulation of embryonic development / amino acid biosynthetic process / positive regulation of receptor internalization / protein kinase activator activity / insulin receptor substrate binding / positive regulation of RNA polymerase II transcription preinitiation complex assembly / positive regulation of transcription initiation by RNA polymerase II / epidermis development / positive regulation of glycogen biosynthetic process / phosphatidylinositol 3-kinase binding / Signal attenuation / cellular response to nutrient levels / transport across blood-brain barrier / heart morphogenesis / activation of protein kinase B activity / dendrite membrane / Insulin receptor recycling / insulin-like growth factor receptor binding / neuron projection maintenance / receptor-mediated endocytosis / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / cellular response to amino acid starvation / positive regulation of MAP kinase activity / positive regulation of glycolytic process / learning / positive regulation of D-glucose import / placental growth factor receptor activity / insulin receptor activity / vascular endothelial growth factor receptor activity / hepatocyte growth factor receptor activity / macrophage colony-stimulating factor receptor activity / platelet-derived growth factor alpha-receptor activity / platelet-derived growth factor beta-receptor activity / stem cell factor receptor activity / boss receptor activity / protein tyrosine kinase collagen receptor activity / brain-derived neurotrophic factor receptor activity / GPI-linked ephrin receptor activity / transmembrane-ephrin receptor activity / epidermal growth factor receptor activity / fibroblast growth factor receptor activity / insulin-like growth factor receptor activity / receptor protein-tyrosine kinase / peptidyl-tyrosine phosphorylation / caveola / receptor internalization / memory / cell surface receptor protein tyrosine kinase signaling pathway / RNA polymerase II transcription regulator complex / 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 / DNA-binding transcription activator activity, RNA polymerase II-specific / protein autophosphorylation / histone H3Y41 kinase activity / histone H2AXY142 kinase activity / transcription regulator complex / RNA polymerase II-specific DNA-binding transcription factor binding / sequence-specific DNA binding / positive regulation of MAPK cascade / DNA-binding transcription factor activity, RNA polymerase II-specific / positive regulation of protein phosphorylation / lysosome / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | |||||||||||||||
![]() | Weis, F. / Menting, J.G. / Margetts, M.B. / Chan, S.J. / Xu, Y. / Tennagels, N. / Wohlfart, P. / Langer, T. / Mueller, C.W. / Dreyer, M.K. / Lawrence, M.C. | |||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: The signalling conformation of the insulin receptor ectodomain. Authors: Felix Weis / John G Menting / Mai B Margetts / Shu Jin Chan / Yibin Xu / Norbert Tennagels / Paulus Wohlfart / Thomas Langer / Christoph W Müller / Matthias K Dreyer / Michael C Lawrence / ![]() ![]() ![]() Abstract: Understanding the structural biology of the insulin receptor and how it signals is of key importance in the development of insulin analogs to treat diabetes. We report here a cryo-electron microscopy ...Understanding the structural biology of the insulin receptor and how it signals is of key importance in the development of insulin analogs to treat diabetes. We report here a cryo-electron microscopy structure of a single insulin bound to a physiologically relevant, high-affinity version of the receptor ectodomain, the latter generated through attachment of C-terminal leucine zipper elements to overcome the conformational flexibility associated with ectodomain truncation. The resolution of the cryo-electron microscopy maps is 3.2 Å in the insulin-binding region and 4.2 Å in the membrane-proximal region. The structure reveals how the membrane proximal domains of the receptor come together to effect signalling and how insulin's negative cooperativity of binding likely arises. Our structure further provides insight into the high affinity of certain super-mitogenic insulins. Together, these findings provide a new platform for insulin analog investigation and design. | |||||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 161.6 KB | Display | ![]() |
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PDB format | ![]() | 114.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 723.8 KB | Display | ![]() |
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Full document | ![]() | 731.2 KB | Display | |
Data in XML | ![]() | 26.9 KB | Display | |
Data in CIF | ![]() | 38.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 0246MC ![]() 0247C ![]() 6hn5C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 106728.211 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: INSR, GCN4, AAS3, ARG9, YEL009C / Plasmid: pEE14 / Strain: ATCC 204508 / S288c / Cell line (production host): Lec8 / Production host: ![]() ![]() References: UniProt: P06213, UniProt: P03069, receptor protein-tyrosine kinase #2: Sugar | ChemComp-NAG / Has protein modification | 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
Component | Name: Leucine zippered human insulin receptor ectodomain (IR-A isoform, "deltabeta" mutant) in complex with insulin and two Fv 83-7 modules : "lower" membrane-proximal part Type: COMPLEX Details: Note: Attached to the leucine-zippered insulin receptor ectodomain are two Fv 83-7 modules. One of these is present within this map volume but it is very poorly ordered and thus left ...Details: Note: Attached to the leucine-zippered insulin receptor ectodomain are two Fv 83-7 modules. One of these is present within this map volume but it is very poorly ordered and thus left completely unmodelled. See the manuscript for further details. Entity ID: #1 / Source: RECOMBINANT | |||||||||||||||
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Molecular weight | Units: MEGADALTONS / Experimental value: NO | |||||||||||||||
Source (natural) | Organism: ![]() | |||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | |||||||||||||||
Buffer solution | pH: 7.5 | |||||||||||||||
Buffer component |
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Specimen | Conc.: 0.094 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 283.15 K |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 16 sec. / Electron dose: 1.85 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2287 |
EM imaging optics | Energyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV |
Image scans | Movie frames/image: 20 / Used frames/image: 1-20 |
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Processing
Software | Name: PHENIX / Version: 1.13-2998_1692: / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 747074 | ||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 98481 / Algorithm: BACK PROJECTION / Num. of class averages: 2 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL / Target criteria: Cross-correlation coefficient | ||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 4ZXB Accession code: 4ZXB / Source name: PDB / Type: experimental model |