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- PDB-7md4: Insulin receptor ectodomain dimer complexed with two IRPA-3 parti... -

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Basic information

Entry
Database: PDB / ID: 7md4
TitleInsulin receptor ectodomain dimer complexed with two IRPA-3 partial agonists
Components
  • Insulin B chain
  • Insulin chain A
  • Isoform Short of Insulin receptor
  • Isoform Short of Insulin receptor subunit alpha
KeywordsPEPTIDE BINDING PROTEIN / Insulin receptor
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 / male sex determination / positive regulation of protein-containing complex disassembly / insulin-like growth factor I binding / exocrine pancreas 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 / male sex determination / positive regulation of protein-containing complex disassembly / insulin-like growth factor I binding / exocrine pancreas development / dendritic spine maintenance / cargo receptor activity / insulin binding / negative regulation of NAD(P)H oxidase activity / adrenal gland development / neuronal cell body membrane / negative regulation of glycogen catabolic process / PTB domain binding / negative regulation of feeding behavior / positive regulation of nitric oxide mediated signal transduction / negative regulation of fatty acid metabolic process / Signaling by Insulin receptor / IRS activation / Insulin processing / regulation of protein secretion / positive regulation of peptide hormone secretion / positive regulation of protein autophosphorylation / Regulation of gene expression in beta cells / positive regulation of respiratory burst / amyloid-beta clearance / negative regulation of acute inflammatory response / regulation of embryonic development / alpha-beta T cell activation / positive regulation of receptor internalization / insulin receptor substrate binding / protein kinase activator activity / positive regulation of dendritic spine maintenance / Synthesis, secretion, and deacylation of Ghrelin / negative regulation of respiratory burst involved in inflammatory response / positive regulation of insulin receptor signaling pathway / epidermis development / negative regulation of protein secretion / activation of protein kinase B activity / negative regulation of gluconeogenesis / positive regulation of glycogen biosynthetic process / fatty acid homeostasis / Signal attenuation / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / negative regulation of lipid catabolic process / positive regulation of lipid biosynthetic process / regulation of protein localization to plasma membrane / transport across blood-brain barrier / heart morphogenesis / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / phosphatidylinositol 3-kinase binding / transport vesicle / nitric oxide-cGMP-mediated signaling / COPI-mediated anterograde transport / positive regulation of nitric-oxide synthase activity / Insulin receptor recycling / negative regulation of reactive oxygen species biosynthetic process / insulin-like growth factor receptor binding / positive regulation of brown fat cell differentiation / NPAS4 regulates expression of target genes / neuron projection maintenance / endoplasmic reticulum-Golgi intermediate compartment membrane / dendrite membrane / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / insulin receptor activity / regulation of transmembrane transporter activity / receptor-mediated endocytosis / learning / positive regulation of glycolytic process / positive regulation of cytokine production / positive regulation of long-term synaptic potentiation / endosome lumen / acute-phase response / positive regulation of protein secretion / positive regulation of D-glucose import / insulin receptor binding / positive regulation of cell differentiation / Regulation of insulin secretion / wound healing / receptor protein-tyrosine kinase / negative regulation of protein catabolic process / hormone activity / regulation of synaptic plasticity / positive regulation of neuron projection development / cellular response to growth factor stimulus / receptor internalization / caveola / memory / positive regulation of protein localization to nucleus / Golgi lumen / cognition / cellular response to insulin stimulus / glucose metabolic process / male gonad development / positive regulation of nitric oxide biosynthetic process / vasodilation
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. / Insulin / Insulin family / Insulin-like / Insulin/IGF/Relaxin family / Insulin / insulin-like growth factor / relaxin family. ...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. / 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 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 / 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
Similarity search - Domain/homology
Insulin / Insulin receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.5 Å
AuthorsGomez-Llorente, Y. / Zhou, H. / Scapin, G.
CitationJournal: Nat Commun / Year: 2022
Title: Functionally selective signaling and broad metabolic benefits by novel insulin receptor partial agonists.
Authors: Margaret Wu / Ester Carballo-Jane / Haihong Zhou / Peter Zafian / Ge Dai / Mindy Liu / Julie Lao / Terri Kelly / Dan Shao / Judith Gorski / Dmitri Pissarnitski / Ahmet Kekec / Ying Chen / ...Authors: Margaret Wu / Ester Carballo-Jane / Haihong Zhou / Peter Zafian / Ge Dai / Mindy Liu / Julie Lao / Terri Kelly / Dan Shao / Judith Gorski / Dmitri Pissarnitski / Ahmet Kekec / Ying Chen / Stephen F Previs / Giovanna Scapin / Yacob Gomez-Llorente / Scott A Hollingsworth / Lin Yan / Danqing Feng / Pei Huo / Geoffrey Walford / Mark D Erion / David E Kelley / Songnian Lin / James Mu /
Abstract: Insulin analogs have been developed to treat diabetes with focus primarily on improving the time action profile without affecting ligand-receptor interaction or functional selectivity. As a result, ...Insulin analogs have been developed to treat diabetes with focus primarily on improving the time action profile without affecting ligand-receptor interaction or functional selectivity. As a result, inherent liabilities (e.g. hypoglycemia) of injectable insulin continue to limit the true therapeutic potential of related agents. Insulin dimers were synthesized to investigate whether partial agonism of the insulin receptor (IR) tyrosine kinase is achievable, and to explore the potential for tissue-selective systemic insulin pharmacology. The insulin dimers induced distinct IR conformational changes compared to native monomeric insulin and substrate phosphorylation assays demonstrated partial agonism. Structurally distinct dimers with differences in conjugation sites and linkers were prepared to deliver desirable IR partial agonist (IRPA). Systemic infusions of a B29-B29 dimer in vivo revealed sharp differences compared to native insulin. Suppression of hepatic glucose production and lipolysis were like that attained with regular insulin, albeit with a distinctly shallower dose-response. In contrast, there was highly attenuated stimulation of glucose uptake into muscle. Mechanistic studies indicated that IRPAs exploit tissue differences in receptor density and have additional distinctions pertaining to drug clearance and distribution. The hepato-adipose selective action of IRPAs is a potentially safer approach for treatment of diabetes.
History
DepositionApr 3, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 23, 2022Provider: repository / Type: Initial release
Revision 1.1Mar 2, 2022Group: Database references / Category: citation / citation_author
Item: _citation.page_first / _citation.page_last ..._citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Oct 30, 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

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Assembly

Deposited unit
N: Isoform Short of Insulin receptor subunit alpha
M: Isoform Short of Insulin receptor subunit alpha
B: Isoform Short of Insulin receptor
A: Isoform Short of Insulin receptor
U: Insulin chain A
V: Insulin B chain
S: Insulin chain A
T: Insulin B chain
Q: Insulin chain A
O: Insulin chain A
R: Insulin B chain
P: Insulin B chain


Theoretical massNumber of molelcules
Total (without water)242,47712
Polymers242,47712
Non-polymers00
Water00
1


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

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Components

#1: Protein/peptide Isoform Short of Insulin receptor subunit alpha / IR


Mass: 3459.836 Da / Num. of mol.: 2 / Fragment: C-terminal helix
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INSR / Cell line (production host): Myeloma / Production host: Mus musculus (house mouse) / References: UniProt: P06213
#2: Protein Isoform Short of Insulin receptor / IR


Mass: 106143.359 Da / Num. of mol.: 2 / Fragment: extracellular domain
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INSR / Cell line (production host): Myeloma / Production host: Mus musculus (house mouse) / References: UniProt: P06213
#3: Protein/peptide
Insulin chain A


Mass: 2383.698 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INS / Production host: Escherichia coli (E. coli) / References: UniProt: P01308
#4: Protein/peptide
Insulin B chain


Mass: 3433.953 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: INS / Production host: Escherichia coli (E. coli) / References: UniProt: P01308
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
1IR-ECD dimer complexed with two IRPA-3 partial agonistsCOMPLEXall0MULTIPLE SOURCES
2IR-ECD dimerCOMPLEX#1-#21RECOMBINANT
3IRPA-3 partial agonistCOMPLEX#3-#41RECOMBINANT
Molecular weightValue: 0.23 MDa / Experimental value: YES
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Mus musculus (house mouse)10090
23Escherichia coli (E. coli)562
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid type: Homemade
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 / Cs: 2.7 mm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 45 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM softwareName: Leginon / Category: image acquisition
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 92327 / Symmetry type: POINT

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