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


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-20 AC153Homo sapiensMutation(s): 0 
Gene Names: IL20ZCYTO10UNQ852/PRO1801
Find proteins for Q9NYY1 (Homo sapiens)
Explore Q9NYY1 
Go to UniProtKB:  Q9NYY1
NIH Common Fund Data Resources
PHAROS:  Q9NYY1
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-20 receptor subunit beta BD206Homo sapiensMutation(s): 2 
Gene Names: IL20RBDIRS1UNQ557/PRO1114
Find proteins for Q6UXL0 (Homo sapiens)
Explore Q6UXL0 
Go to UniProtKB:  Q6UXL0
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PHAROS:  Q6UXL0
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-20 receptor subunit alpha ER221Homo sapiensMutation(s): 2 
Gene Names: IL20RAUNQ681/PRO1315
Find proteins for Q9UHF4 (Homo sapiens)
Explore Q9UHF4 
Go to UniProtKB:  Q9UHF4
NIH Common Fund Data Resources
PHAROS:  Q9UHF4
Protein Feature View
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  • 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



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