4DOH

IL20/IL201/IL20R2 Ternary Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Structural basis for receptor sharing and activation by interleukin-20 receptor-2 (IL-20R2) binding cytokines.

Logsdon, N.J.Deshpande, A.Harris, B.D.Rajashankar, K.R.Walter, M.R.

(2012) Proc Natl Acad Sci U S A 109: 12704-12709

  • DOI: 10.1073/pnas.1117551109
  • Primary Citation of Related Structures:  
    4DOH

  • PubMed Abstract: 
  • Interleukin 20 (IL-20) is a pleotropic IL-10 family cytokine that protects epithelial surfaces from pathogens. However, dysregulated IL-20 signaling is implicated in several human pathologies including psoriasis, rheumatoid arthritis, atherosclerosis, and osteoporosis ...

    Interleukin 20 (IL-20) is a pleotropic IL-10 family cytokine that protects epithelial surfaces from pathogens. However, dysregulated IL-20 signaling is implicated in several human pathologies including psoriasis, rheumatoid arthritis, atherosclerosis, and osteoporosis. IL-20, and related cytokines IL-19 and IL-24, designated IL-20 subfamily cytokines (IL-20SFCs), induce cellular responses through an IL-20R1/IL-20R2 (type I) receptor heterodimer, whereas IL-20 and IL-24 also signal through the IL-22R1/IL-20R2 (type II) receptor complex. The crystal structure of the IL-20/IL-20R1/IL-20R2 complex reveals how type I and II complexes discriminate cognate from noncognate ligands. The structure also defines how the receptor-cytokine interfaces are affinity tuned to allow distinct signaling through a receptor complex shared by three different ligands. Our results provide unique insights into the complexity of IL-20SFC signaling that may be critical in the design of mechanistic-based inhibitors of IL-20SFC-mediated inflammatory disease.


    Organizational Affiliation

    Center for Biophysical Sciences, University of Alabama, Birmingham, AL 35294, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-20A, D [auth C]153Homo sapiensMutation(s): 0 
Gene Names: IL20ZCYTO10UNQ852/PRO1801
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NYY1 (Homo sapiens)
Explore Q9NYY1 
Go to UniProtKB:  Q9NYY1
PHAROS:  Q9NYY1
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-20 receptor subunit betaB, E [auth D]206Homo sapiensMutation(s): 2 
Gene Names: IL20RBDIRS1UNQ557/PRO1114
UniProt & NIH Common Fund Data Resources
Find proteins for Q6UXL0 (Homo sapiens)
Explore Q6UXL0 
Go to UniProtKB:  Q6UXL0
PHAROS:  Q6UXL0
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-20 receptor subunit alphaF [auth E], C [auth R]221Homo sapiensMutation(s): 2 
Gene Names: IL20RAUNQ681/PRO1315
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UHF4 (Homo sapiens)
Explore Q9UHF4 
Go to UniProtKB:  Q9UHF4
PHAROS:  Q9UHF4
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 103.115α = 90
b = 111.764β = 90
c = 136.334γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
PHENIXmodel building
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-07-18
    Type: Initial release
  • Version 1.1: 2012-08-08
    Changes: Database references
  • Version 1.2: 2013-01-02
    Changes: Database references
  • Version 1.3: 2013-10-16
    Changes: Other
  • Version 1.4: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Structure summary