3L5H

Crystal structure of the full ectodomain of human gp130: New insights into the molecular assembly of receptor complexes


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.6 Å
  • R-Value Free: 0.335 
  • R-Value Work: 0.263 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the entire ectodomain of gp130: insights into the molecular assembly of the tall cytokine receptor complexes.

Xu, Y.Kershaw, N.J.Luo, C.S.Soo, P.Pocock, M.J.Czabotar, P.E.Hilton, D.J.Nicola, N.A.Garrett, T.P.Zhang, J.G.

(2010) J.Biol.Chem. 285: 21214-21218

  • DOI: 10.1074/jbc.C110.129502
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • gp130 is the shared signal-transducing receptor subunit for the large and important family of interleukin 6-like cytokines. Previous x-ray structures of ligand-receptor complexes of this family lack the three membrane-proximal domains that are essent ...

    gp130 is the shared signal-transducing receptor subunit for the large and important family of interleukin 6-like cytokines. Previous x-ray structures of ligand-receptor complexes of this family lack the three membrane-proximal domains that are essential for signal transduction. Here we report the crystal structure of the entire extracellular portion of human gp130 (domains 1-6, D1-D6) at 3.6 A resolution, in an unliganded form, as well as a higher resolution structure of the membrane-proximal fibronectin type III domains (D4-D6) at 1.9 A. This represents the first atomic resolution structure of the complete ectodomain of any "tall" cytokine receptor. These structures show that other than a reorientation of the D1 domain, there is little structural change in gp130 upon ligand binding. They also reveal that the interface between the D4 and D5 domains forms an acute bend in the gp130 structure. Key residues at this interface are highly conserved across the entire tall receptor family, suggesting that this acute bend may be a common feature of these receptors. Importantly, this geometry positions the C termini of the membrane-proximal fibronectin type III domains of the tall cytokine receptors in close proximity within the transmembrane complex, favorable for receptor-associated Janus kinases to trans-phosphorylate and activate each other.


    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
Interleukin-6 receptor subunit beta
A
589Homo sapiensMutation(s): 0 
Gene Names: IL6ST
Find proteins for P40189 (Homo sapiens)
Go to Gene View: IL6ST
Go to UniProtKB:  P40189
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

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

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Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NDG
Query on NDG

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Download CCD File 
A
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.6 Å
  • R-Value Free: 0.335 
  • R-Value Work: 0.263 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 89.001α = 90.00
b = 51.821β = 102.17
c = 167.157γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XSCALEdata scaling
SCALAdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-05-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2017-04-05
    Type: Database references