1I1R

CRYSTAL STRUCTURE OF A CYTOKINE/RECEPTOR COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of an extracellular gp130 cytokine receptor signaling complex.

Chow, D.He, X.Snow, A.L.Rose-John, S.Garcia, K.C.

(2001) Science 291: 2150-2150

  • DOI: 10.1126/science.1058308

  • PubMed Abstract: 
  • The activation of gp130, a shared signal-transducing receptor for a family of cytokines, is initiated by recognition of ligand followed by oligomerization into a higher order signaling complex. Kaposi's sarcoma-associated herpesvirus encodes a functi ...

    The activation of gp130, a shared signal-transducing receptor for a family of cytokines, is initiated by recognition of ligand followed by oligomerization into a higher order signaling complex. Kaposi's sarcoma-associated herpesvirus encodes a functional homolog of human interleukin-6 (IL-6) that activates human gp130. In the 2.4 angstrom crystal structure of the extracellular signaling assembly between viral IL-6 and human gp130, two complexes are cross-linked into a tetramer through direct interactions between the immunoglobulin domain of gp130 and site III of viral IL-6, which is necessary for receptor activation. Unlike human IL-6 (which uses many hydrophilic residues), the viral cytokine largely uses hydrophobic amino acids to contact gp130, which enhances the complementarity of the viral IL-6-gp130 binding interfaces. The cross-reactivity of gp130 is apparently due to a chemical plasticity evident in the amphipathic gp130 cytokine-binding sites.


    Organizational Affiliation

    Department of Microbiology and Immunology, Stanford University School of Medicine, Fairchild D319, 299 Campus Drive, Stanford, CA 94305, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTERLEUKIN-6 RECEPTOR BETA CHAIN
A
303Homo sapiensMutation(s): 0 
Gene Names: IL6ST
Find proteins for P40189 (Homo sapiens)
Go to Gene View: IL6ST
Go to UniProtKB:  P40189
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
VIRAL IL-6
B
181Human herpesvirus 8Mutation(s): 0 
Gene Names: vIL-6
Find proteins for Q98823 (Human herpesvirus 8)
Go to UniProtKB:  Q98823
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.213 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 103.000α = 90.00
b = 123.310β = 112.03
c = 76.790γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
MOLREPphasing
SCALAdata scaling
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-03-28
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance