1J7V

HUMAN IL-10 / IL-10R1 COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.231 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Crystal structure of the IL-10/IL-10R1 complex reveals a shared receptor binding site.

Josephson, K.Logsdon, N.J.Walter, M.R.

(2001) Immunity 15: 35-46

  • DOI: https://doi.org/10.1016/s1074-7613(01)00169-8
  • Primary Citation of Related Structures:  
    1J7V

  • PubMed Abstract: 

    Interleukin 10 (IL-10) is a dimeric cytokine that plays a central role in suppressing inflammatory responses. These activities are dependent on the interaction of IL-10 with its high-affinity receptor (IL-10R1). This intermediate complex must subsequently recruit the low-affinity IL-10R2 chain before cell signaling can occur. Here we report the 2.9 A crystal structure of IL-10 bound to a soluble form of IL-10R1 (sIL-10R1). The complex consists of two IL-10s and four sIL-10R1 molecules. Several residues in the IL-10/sIL-10R1 interface are conserved in all IL-10 homologs and their receptors. The data suggests that formation of the active IL-10 signaling complex occurs by a novel molecular recognition paradigm where IL-10R1 and IL-10R2 both recognize the same binding site on IL-10.


  • Organizational Affiliation

    Center for Macromolecular Crystallography, University of Alabama at Birmingham, Birmingham, AL 35294, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
INTERLEUKIN-10A [auth L]160Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P22301 (Homo sapiens)
Explore P22301 
Go to UniProtKB:  P22301
PHAROS:  P22301
GTEx:  ENSG00000136634 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP22301
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
INTERLEUKIN-10 RECEPTOR ALPHA CHAINB [auth R]214Homo sapiensMutation(s): 6 
UniProt & NIH Common Fund Data Resources
Find proteins for Q13651 (Homo sapiens)
Explore Q13651 
Go to UniProtKB:  Q13651
PHAROS:  Q13651
GTEx:  ENSG00000110324 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ13651
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.231 
  • Space Group: P 32 1 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.23α = 90
b = 46.23β = 90
c = 307.78γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing
MLPHAREphasing
DMmodel building
CNSrefinement
CCP4data scaling
DMphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-09-19
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-10-27
    Changes: Database references
  • Version 1.4: 2024-10-30
    Changes: Data collection, Structure summary