Type 1 Insulin-like growth factor receptor (DOMAINS 1-3)

Experimental Data Snapshot

  • Resolution: 2.60 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.237 

wwPDB Validation   3D Report Full Report

This is version 2.1 of the entry. See complete history


Crystal structure of the first three domains of the type-1 insulin-like growth factor receptor.

Garrett, T.P.McKern, N.M.Lou, M.Frenkel, M.J.Bentley, J.D.Lovrecz, G.O.Elleman, T.C.Cosgrove, L.J.Ward, C.W.

(1998) Nature 394: 395-399

  • DOI: https://doi.org/10.1038/28668
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The type-1 insulin-like growth-factor receptor (IGF-1R) and insulin receptor (IR) are closely related members of the tyrosine-kinase receptor superfamily. IR is essential for glucose homeostasis, whereas IGF-1R is involved in both normal growth and development and malignant transformation. Homologues of these receptors are found in animals as simple as cnidarians. The epidermal growth-factor receptor (EGFR) family is closely related to the IR family and has significant sequence identity to the extracellular portion we describe here. We now present the structure of the first three domains of IGF-IR (L1-Cys-rich-L2) determined to 2.6 A resolution. The L domains each consist of a single-stranded right-handed beta-helix. The Cys-rich region is composed of eight disulphide-bonded modules, seven of which form a rod-shaped domain with modules associated in an unusual manner. The three domains surround a central space of sufficient size to accommodate a ligand molecule. Although the fragment (residues 1-462) does not bind ligand, many of the determinants responsible for hormone binding and ligand specificity map to this central site. This structure therefore shows how the IR subfamily might interact with their ligands.

  • Organizational Affiliation

    Biomolecular Research Institute, Parkville, Victoria, Australia. tom.barrett@bioresi.com.au

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
INSULIN-LIKE GROWTH FACTOR RECEPTOR 1478Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P08069 (Homo sapiens)
Explore P08069 
Go to UniProtKB:  P08069
PHAROS:  P08069
GTEx:  ENSG00000140443 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08069
Sequence Annotations
  • Reference Sequence


Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
Glycosylation Resources
GlyTouCan:  G21290RB
GlyCosmos:  G21290RB
GlyGen:  G21290RB
Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
Glycosylation Resources
GlyTouCan:  G42466VF
GlyCosmos:  G42466VF
GlyGen:  G42466VF
Experimental Data & Validation

Experimental Data

  • Resolution: 2.60 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.237 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.39α = 90
b = 99.72β = 90
c = 120.29γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PROTEINmodel building
DMmodel building

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-09-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.3: 2018-04-04
    Changes: Data collection
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2023-12-27
    Changes: Data collection, Database references, Structure summary