6WEO

IL-22 Signaling Complex with IL-22R1 and IL-10Rbeta


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

The tissue protective functions of interleukin-22 can be decoupled from pro-inflammatory actions through structure-based design.

Saxton, R.A.Henneberg, L.T.Calafiore, M.Su, L.Jude, K.M.Hanash, A.M.Garcia, K.C.

(2021) Immunity 54: 660-672.e9

  • DOI: 10.1016/j.immuni.2021.03.008
  • Primary Citation of Related Structures:  
    6WEO

  • PubMed Abstract: 
  • Interleukin-22 (IL-22) acts on epithelial cells to promote tissue protection and regeneration, but can also elicit pro-inflammatory effects, contributing to disease pathology. Here, we engineered a high-affinity IL-22 super-agonist that enabled the structure determination of the IL-22-IL-22Rα-IL-10Rβ ternary complex to a resolution of 2 ...

    Interleukin-22 (IL-22) acts on epithelial cells to promote tissue protection and regeneration, but can also elicit pro-inflammatory effects, contributing to disease pathology. Here, we engineered a high-affinity IL-22 super-agonist that enabled the structure determination of the IL-22-IL-22Rα-IL-10Rβ ternary complex to a resolution of 2.6 Å. Using structure-based design, we systematically destabilized the IL-22-IL-10Rβ binding interface to create partial agonist analogs that decoupled downstream STAT1 and STAT3 signaling. The extent of STAT bias elicited by a single ligand varied across tissues, ranging from full STAT3-biased agonism to STAT1/3 antagonism, correlating with IL-10Rβ expression levels. In vivo, this tissue-selective signaling drove tissue protection in the pancreas and gastrointestinal tract without inducing local or systemic inflammation, thereby uncoupling these opposing effects of IL-22 signaling. Our findings provide insight into the mechanisms underlying the cytokine pleiotropy and illustrate how differential receptor expression levels and STAT response thresholds can be synthetically exploited to endow pleiotropic cytokines with enhanced functional specificity.


    Organizational Affiliation

    Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford University School of Medicine, 279 Campus Drive, Stanford, CA 94305, USA; Department of Structural Biology, Stanford University School of Medicine, 299 Campus Drive, Stanford, CA 94305, USA. Electronic address: kcgarcia@stanford.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-10 receptor subunit beta204Mus musculusMutation(s): 0 
Gene Names: Il10rbCrfb4
Find proteins for Q61190 (Mus musculus)
Explore Q61190 
Go to UniProtKB:  Q61190
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-22 receptor subunit alpha-1204Mus musculusMutation(s): 0 
Gene Names: Il22ra1
Find proteins for Q80XZ4 (Mus musculus)
Explore Q80XZ4 
Go to UniProtKB:  Q80XZ4
NIH Common Fund Data Resources
IMPC:  MGI:2663588
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-22149Mus musculusMutation(s): 0 
Gene Names: Il22Il22aIltifIltifa
Find proteins for Q9JJY9 (Mus musculus)
Explore Q9JJY9 
Go to UniProtKB:  Q9JJY9
Protein Feature View
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 4
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranoseKA [auth a], MA [auth c], XA [auth n]4 N-Glycosylation Oligosaccharides Interaction
Entity ID: 5
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranoseCB [auth s], LA [auth b], OA [auth e], SA [auth i], TA [auth j], VA [auth l], WA [auth m]3 N-Glycosylation Oligosaccharides Interaction
Entity ID: 6
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranoseBB [auth r], DB [auth t], EB [auth u], FB [auth v], NA [auth d], YA [auth o], ZA [auth p]2 N-Glycosylation Oligosaccharides Interaction
Entity ID: 7
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-L-fucopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranosePA [auth f]2 N-Glycosylation Oligosaccharides Interaction
Entity ID: 8
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseQA [auth g]3 N-Glycosylation Oligosaccharides Interaction
Entity ID: 9
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranoseRA [auth h], UA [auth k]5 N-Glycosylation Oligosaccharides Interaction
Entity ID: 10
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseAB [auth q]2 N-Glycosylation Oligosaccharides Interaction
Entity ID: 11
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-L-fucopyranose-(1-3)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranoseGB [auth w]3 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 134.487α = 71.062
b = 145.219β = 81.836
c = 152.038γ = 62.475
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR37-AI51321

Revision History  (Full details and data files)

  • Version 1.0: 2021-04-28
    Type: Initial release