4XSS

Insulin-like growth factor I in complex with site 1 of a hybrid insulin receptor / Type 1 insulin-like growth factor receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Congruency of Ligand Binding to the Insulin and Insulin/Type 1 Insulin-like Growth Factor Hybrid Receptors.

Menting, J.G.Lawrence, C.F.Kong, G.K.Margetts, M.B.Ward, C.W.Lawrence, M.C.

(2015) Structure 23: 1271-1282

  • DOI: 10.1016/j.str.2015.04.016
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The homodimeric insulin and type 1 insulin-like growth factor receptors (IR and IGF-1R) share a common architecture and each can bind all three ligands within the family: insulin and insulin-like growth factors I and II (IGF-I and IFG-II). The recept ...

    The homodimeric insulin and type 1 insulin-like growth factor receptors (IR and IGF-1R) share a common architecture and each can bind all three ligands within the family: insulin and insulin-like growth factors I and II (IGF-I and IFG-II). The receptor monomers also assemble as heterodimers, the primary ligand-binding sites of which each comprise the first leucine-rich repeat domain (L1) of one receptor type and an α-chain C-terminal segment (αCT) of the second receptor type. We present here crystal structures of IGF-I bound to such a hybrid primary binding site and of a ligand-free version of an IR αCT peptide bound to an IR L1 plus cysteine-rich domain construct (IR310.T). These structures, refined at 3.0-Å resolution, prove congruent to respective existing structures of insulin-complexed IR310.T and the intact apo-IR ectodomain. As such, they provide key missing links in the emerging, but sparse, repertoire of structures defining the receptor family.


    Related Citations: 
    • PROTECTIVE HINGE IN INSULIN OPENS TO ENABLE ITS RECEPTOR ENGAGEMENT
      Menting, J.G.
      (2014) PROC.NATL.ACAD.SCI.USA 111: E3395
    • How insulin engages its primary binding site on the insulin receptor
      Menting, J.G.
      (2013) Nature 493: 241


    Organizational Affiliation

    Structural Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Insulin-like growth factor I
B
70Homo sapiensMutation(s): 0 
Gene Names: IGF1 (IBP1)
Find proteins for P05019 (Homo sapiens)
Go to Gene View: IGF1
Go to UniProtKB:  P05019
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Insulin receptor
E
317Homo sapiensMutation(s): 0 
Gene Names: INSR
EC: 2.7.10.1
Find proteins for P06213 (Homo sapiens)
Go to Gene View: INSR
Go to UniProtKB:  P06213
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Insulin-like growth factor receptor alpha-CT peptide
F
16Homo sapiensMutation(s): 0 
Gene Names: IGF1R
EC: 2.7.10.1
Find proteins for P08069 (Homo sapiens)
Go to Gene View: IGF1R
Go to UniProtKB:  P08069
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
E
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
FUC
Query on FUC

Download SDF File 
Download CCD File 
E
ALPHA-L-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
 Ligand Interaction
BMA
Query on BMA

Download SDF File 
Download CCD File 
E
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
E
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.209 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 219.160α = 90.00
b = 219.160β = 90.00
c = 121.220γ = 120.00
Software Package:
Software NamePurpose
XSCALEdata scaling
BUSTERrefinement
PDB_EXTRACTdata extraction
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (Australia)Australia1005896
National Health and Medical Research Council (Australia)Australia1058233

Revision History 

  • Version 1.0: 2015-06-10
    Type: Initial release
  • Version 1.1: 2015-07-22
    Type: Database references
  • Version 1.2: 2017-09-13
    Type: Author supporting evidence, Data collection, Database references, Derived calculations, Source and taxonomy