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- EMDB-71878: Insulin Receptor bound to Ins-AC-S2 -

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Basic information

Entry
Database: EMDB / ID: EMD-71878
TitleInsulin Receptor bound to Ins-AC-S2
Map data
Sample
  • Complex: Insulin Receptor-A isoform complexed with two Ins-AC-S2 molecules.
    • Protein or peptide: Isoform Long of Insulin receptor
    • Protein or peptide: Ins-AC-S2 chain A
    • Protein or peptide: Insulin chain B
KeywordsAntagonist / receptor tyrosine kinase / MEMBRANE PROTEIN
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 / male sex determination / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly / exocrine pancreas development ...regulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / male sex determination / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly / exocrine pancreas development / dendritic spine maintenance / insulin binding / adrenal gland development / cargo receptor activity / negative regulation of glycogen catabolic process / : / negative regulation of fatty acid metabolic process / PTB domain binding / Signaling by Insulin receptor / negative regulation of feeding behavior / IRS activation / Insulin processing / regulation of protein secretion / positive regulation of peptide hormone secretion / neuronal cell body membrane / negative regulation of acute inflammatory response / Regulation of gene expression in beta cells / positive regulation of respiratory burst / alpha-beta T cell activation / amyloid-beta clearance / regulation of embryonic development / insulin receptor substrate binding / positive regulation of receptor internalization / Synthesis, secretion, and deacylation of Ghrelin / epidermis development / negative regulation of protein secretion / positive regulation of dendritic spine maintenance / negative regulation of gluconeogenesis / fatty acid homeostasis / 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 / protein kinase activator activity / negative regulation of respiratory burst involved in inflammatory response / negative regulation of lipid catabolic process / positive regulation of lipid biosynthetic process / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / nitric oxide-cGMP-mediated signaling / transport across blood-brain barrier / regulation of protein localization to plasma membrane / positive regulation of nitric-oxide synthase activity / phosphatidylinositol 3-kinase binding / heart morphogenesis / transport vesicle / Insulin receptor recycling / COPI-mediated anterograde transport / positive regulation of brown fat cell differentiation / negative regulation of reactive oxygen species biosynthetic process / insulin-like growth factor receptor binding / NPAS4 regulates expression of target genes / neuron projection maintenance / positive regulation of mitotic nuclear division / endoplasmic reticulum-Golgi intermediate compartment membrane / Insulin receptor signalling cascade / receptor-mediated endocytosis / dendrite membrane / positive regulation of glycolytic process / endosome lumen / positive regulation of cytokine production / acute-phase response / positive regulation of D-glucose import across plasma membrane / insulin receptor binding / positive regulation of long-term synaptic potentiation / learning / positive regulation of protein secretion / positive regulation of cell differentiation / wound healing / Regulation of insulin secretion / hormone activity / receptor protein-tyrosine kinase / positive regulation of neuron projection development / negative regulation of protein catabolic process / caveola / receptor internalization / positive regulation of protein localization to nucleus / regulation of synaptic plasticity / Golgi lumen / male gonad development / cellular response to growth factor stimulus / cognition / vasodilation / glucose metabolic process / cellular response to insulin stimulus / memory / positive regulation of nitric oxide biosynthetic process / insulin receptor signaling pathway / protein autophosphorylation / late endosome / cell-cell signaling
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 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
Insulin / Insulin receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.64 Å
AuthorsVogel A / Hill CP / Blakely A
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)R01DK127268 United States
CitationJournal: To Be Published
Title: Structural basis of insulin receptor antagonism by bivalent site 1-site 2 ligands
Authors: Vogel A / Blakely A / Dao Y / Lin NP / Chou D / Hill CP
History
DepositionJul 31, 2025-
Header (metadata) releaseJun 10, 2026-
Map releaseJun 10, 2026-
UpdateJun 10, 2026-
Current statusJun 10, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_71878.png

Downloads & links

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Map

FileDownload / File: emd_71878.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 320 pix.
= 339.2 Å		1.06 Å/pix.
x 320 pix.
= 339.2 Å		1.06 Å/pix.
x 320 pix.
= 339.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0311
Minimum - Maximum-0.599734 - 0.6959105
Average (Standard dev.)0.00019568672 (±0.008200365)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 339.19998 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_71878_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_71878_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Insulin Receptor-A isoform complexed with two Ins-AC-S2 molecules.

EntireName: Insulin Receptor-A isoform complexed with two Ins-AC-S2 molecules.
Components
  • Complex: Insulin Receptor-A isoform complexed with two Ins-AC-S2 molecules.
    • Protein or peptide: Isoform Long of Insulin receptor
    • Protein or peptide: Ins-AC-S2 chain A
    • Protein or peptide: Insulin chain B

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Supramolecule #1: Insulin Receptor-A isoform complexed with two Ins-AC-S2 molecules.

SupramoleculeName: Insulin Receptor-A isoform complexed with two Ins-AC-S2 molecules.
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Isoform Long of Insulin receptor

MacromoleculeName: Isoform Long of Insulin receptor / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: receptor protein-tyrosine kinase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 109.477617 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: HLYPGEVCPG MDIRNNLTRL HELENCSVIE GHLQILLMFK TRPEDFRDLS FPKLIMITDY LLLFRVYGLE SLKDLFPNLT VIRGSRLFF NYALVIFEMV HLKELGLYNL MNITRGSVRI EKNNELCYLA TIDWSRILDS VEDNYIVLNK DDNEECGDIC P GTAKGKTN ...String:
HLYPGEVCPG MDIRNNLTRL HELENCSVIE GHLQILLMFK TRPEDFRDLS FPKLIMITDY LLLFRVYGLE SLKDLFPNLT VIRGSRLFF NYALVIFEMV HLKELGLYNL MNITRGSVRI EKNNELCYLA TIDWSRILDS VEDNYIVLNK DDNEECGDIC P GTAKGKTN CPATVINGQF VERCWTHSHC QKVCPTICKS HGCTAEGLCC HSECLGNCSQ PDDPTKCVAC RNFYLDGRCV ET CPPPYYH FQDWRCVNFS FCQDLHHKCK NSRRQGCHQY VIHNNKCIPE CPSGYTMNSS NLLCTPCLGP CPKVCHLLEG EKT IDSVTS AQELRGCTVI NGSLIINIRG GNNLAAELEA NLGLIEEISG YLKIRRSYAL VSLSFFRKLR LIRGETLEIG NYSF YALDN QNLRQLWDWS KHNLTITQGK LFFHYNPKLC LSEIHKMEEV SGTKGRQERN DIALKTNGDQ ASCENELLKF SYIRT SFDK ILLRWEPYWP PDFRDLLGFM LFYKEAPYQN VTEFDGQDAC GSNSWTVVDI DPPLRSNDPK SQNHPGWLMR GLKPWT QYA IFVKTLVTFS DERRTYGAKS DIIYVQTDAT NPSVPLDPIS VSNSSSQIIL KWKPPSDPNG NITHYLVFWE RQAEDSE LF ELDYCLKGLK LPSRTWSPPF ESEDSQKHNQ SEYEDSAGEC CSCPKTDSQI LKELEESSFR KTFEDYLHNV VFVPRKTS S GTGAEDPRPS RKRRSLGDVG NVTVAVPTVA AFPNTSSTSV PTSPEEHRPF EKVVNKESLV ISGLRHFTGY RIELQACNQ DTPEERCSVA AYVSARTMPE AKADDIVGPV THEIFENNVV HLMWQEPKEP NGLIVLYEVS YRRYGDEELH LCVSRKHFAL ERGCRLRGL SPGNYSVRIR ATSLAGNGSW TEPTYFYVTD YLDVPSNIAK SSGPSGSHHH HHHGSDYKDD DDKDYKDDDD K

UniProtKB: Insulin receptor

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Macromolecule #2: Ins-AC-S2 chain A

MacromoleculeName: Ins-AC-S2 chain A / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 5.52004 KDa
SequenceString:
GIVEQCCTSI CSLYQLENYC GGSLPETGGG SLEEEWAQIQ SEVWGRGCPS Y

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Macromolecule #3: Insulin chain B

MacromoleculeName: Insulin chain B / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 3.332849 KDa
SequenceString:
FVNQHLCGSH LVEALYLVCG ERGFFYTPK

UniProtKB: Insulin

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: NONE
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

7md4

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.64 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 314550
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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