3W13

Insulin receptor ectodomain construct comprising domains L1-CR in complex with high-affinity insulin analogue [D-PRO-B26]-DTI-NH2, alphact peptide(693-719) and FAB 83-7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.303 Å
  • R-Value Free: 0.335 
  • R-Value Work: 0.289 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

How insulin engages its primary binding site on the insulin receptor

Menting, J.G.Whittaker, J.Margetts, M.B.Whittaker, L.J.Kong, G.K.-W.Smith, B.J.Watson, C.J.Zakova, L.Kletvikova, E.Jiracek, J.Chan, S.J.Steiner, D.F.Dodson, G.G.Brzozowski, A.M.Weiss, M.A.Ward, C.W.Lawrence, M.C.

(2013) Nature 493: 241-245

  • DOI: 10.1038/nature11781
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Insulin receptor signalling has a central role in mammalian biology, regulating cellular metabolism, growth, division, differentiation and survival. Insulin resistance contributes to the pathogenesis of type 2 diabetes mellitus and the onset of Alzhe ...

    Insulin receptor signalling has a central role in mammalian biology, regulating cellular metabolism, growth, division, differentiation and survival. Insulin resistance contributes to the pathogenesis of type 2 diabetes mellitus and the onset of Alzheimer's disease; aberrant signalling occurs in diverse cancers, exacerbated by cross-talk with the homologous type 1 insulin-like growth factor receptor (IGF1R). Despite more than three decades of investigation, the three-dimensional structure of the insulin-insulin receptor complex has proved elusive, confounded by the complexity of producing the receptor protein. Here we present the first view, to our knowledge, of the interaction of insulin with its primary binding site on the insulin receptor, on the basis of four crystal structures of insulin bound to truncated insulin receptor constructs. The direct interaction of insulin with the first leucine-rich-repeat domain (L1) of insulin receptor is seen to be sparse, the hormone instead engaging the insulin receptor carboxy-terminal α-chain (αCT) segment, which is itself remodelled on the face of L1 upon insulin binding. Contact between insulin and L1 is restricted to insulin B-chain residues. The αCT segment displaces the B-chain C-terminal β-strand away from the hormone core, revealing the mechanism of a long-proposed conformational switch in insulin upon receptor engagement. This mode of hormone-receptor recognition is novel within the broader family of receptor tyrosine kinases. We support these findings by photo-crosslinking data that place the suggested interactions into the context of the holoreceptor and by isothermal titration calorimetry data that dissect the hormone-insulin receptor interface. Together, our findings provide an explanation for a wealth of biochemical data from the insulin receptor and IGF1R systems relevant to the design of therapeutic insulin analogues.


    Organizational Affiliation

    Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Insulin receptor domains L1-CR
E
310Homo 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: 2
MoleculeChainsSequence LengthOrganismDetails
monoclonal antibody fab 83-7 fragment - heavy chain
C
116N/AMutation(s): 0 
N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
monoclonal antibody fab 83-7 fragment - light chain
D
114N/AMutation(s): 0 
N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Insulin A chain
A
21Homo sapiensMutation(s): 0 
Gene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Insulin B chain
B
26Homo sapiensMutation(s): 0 
Gene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Insulin receptor alphact peptide
F
23Homo 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
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAN
Query on MAN

Download SDF File 
Download CCD File 
E
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-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
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PR9
Query on PR9
B
D-PEPTIDE LINKINGC5 H10 N2 OPRO
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.303 Å
  • R-Value Free: 0.335 
  • R-Value Work: 0.289 
  • Space Group: P 2 3
Unit Cell:
Length (Å)Angle (°)
a = 169.228α = 90.00
b = 169.228β = 90.00
c = 169.228γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-09
    Type: Initial release
  • Version 1.1: 2013-01-16
    Type: Database references
  • Version 1.2: 2013-09-04
    Type: Database references