1J7V

HUMAN IL-10 / IL-10R1 COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.231 

wwPDB Validation 3D Report Full Report


This is version 1.2 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


  • 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 subsequ ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTERLEUKIN-10
L
160Homo sapiensMutation(s): 0 
Gene Names: IL10
Find proteins for P22301 (Homo sapiens)
Go to Gene View: IL10
Go to UniProtKB:  P22301
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
INTERLEUKIN-10 RECEPTOR ALPHA CHAIN
R
214Homo sapiensMutation(s): 6 
Gene Names: IL10RA (IL10R)
Find proteins for Q13651 (Homo sapiens)
Go to Gene View: IL10RA
Go to UniProtKB:  Q13651
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.231 
  • Space Group: P 32 1 2
Unit Cell:
Length (Å)Angle (°)
a = 46.230α = 90.00
b = 46.230β = 90.00
c = 307.780γ = 120.00
Software Package:
Software NamePurpose
AMoREphasing
DMmodel building
SCALAdata scaling
CNSrefinement
MOSFLMdata reduction
MLPHAREphasing
CCP4data scaling
DMphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-09-19
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance