6WDQ

IL23/IL23R/IL12Rb1 signaling complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 
    0.295 (Depositor), 0.300 (DCC) 
  • R-Value Work: 
    0.238 (Depositor), 0.240 (DCC) 
  • R-Value Observed: 
    0.243 (Depositor) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 

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This is version 1.4 of the entry. See complete history


Literature

Structural basis for IL-12 and IL-23 receptor sharing reveals a gateway for shaping actions on T versus NK cells.

Glassman, C.R.Mathiharan, Y.K.Jude, K.M.Su, L.Panova, O.Lupardus, P.J.Spangler, J.B.Ely, L.K.Thomas, C.Skiniotis, G.Garcia, K.C.

(2021) Cell 184: 983-999.e24

  • DOI: https://doi.org/10.1016/j.cell.2021.01.018
  • Primary Citation of Related Structures:  
    6WDP, 6WDQ

  • PubMed Abstract: 

    Interleukin-12 (IL-12) and IL-23 are heterodimeric cytokines that are produced by antigen-presenting cells to regulate the activation and differentiation of lymphocytes, and they share IL-12Rβ1 as a receptor signaling subunit. We present a crystal structure of the quaternary IL-23 (IL-23p19/p40)/IL-23R/IL-12Rβ1 complex, together with cryoelectron microscopy (cryo-EM) maps of the complete IL-12 (IL-12p35/p40)/IL-12Rβ2/IL-12Rβ1 and IL-23 receptor (IL-23R) complexes, which reveal "non-canonical" topologies where IL-12Rβ1 directly engages the common p40 subunit. We targeted the shared IL-12Rβ1/p40 interface to design a panel of IL-12 partial agonists that preserved interferon gamma (IFNγ) induction by CD8 + T cells but impaired cytokine production from natural killer (NK) cells in vitro. These cell-biased properties were recapitulated in vivo, where IL-12 partial agonists elicited anti-tumor immunity to MC-38 murine adenocarcinoma absent the NK-cell-mediated toxicity seen with wild-type IL-12. Thus, the structural mechanism of receptor sharing used by IL-12 family cytokines provides a protein interface blueprint for tuning this cytokine axis for therapeutics.


  • Organizational Affiliation

    Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA; Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-12 subunit beta308Homo sapiensMutation(s): 0 
Gene Names: IL12BNKSF2
UniProt & NIH Common Fund Data Resources
Find proteins for P29460 (Homo sapiens)
Explore P29460 
Go to UniProtKB:  P29460
PHAROS:  P29460
GTEx:  ENSG00000113302 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29460
Glycosylation
Glycosylation Sites: 2Go to GlyGen: P29460-1
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-23 subunit alpha171Homo sapiensMutation(s): 0 
Gene Names: IL23ASGRFUNQ2498/PRO5798
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NPF7 (Homo sapiens)
Explore Q9NPF7 
Go to UniProtKB:  Q9NPF7
PHAROS:  Q9NPF7
GTEx:  ENSG00000110944 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NPF7
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-23 receptor307Homo sapiensMutation(s): 1 
Gene Names: IL23R
UniProt & NIH Common Fund Data Resources
Find proteins for Q5VWK5 (Homo sapiens)
Explore Q5VWK5 
Go to UniProtKB:  Q5VWK5
PHAROS:  Q5VWK5
GTEx:  ENSG00000162594 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5VWK5
Glycosylation
Glycosylation Sites: 5Go to GlyGen: Q5VWK5-1
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-12 receptor subunit beta-1219Homo sapiensMutation(s): 0 
Gene Names: IL12RB1IL12RIL12RB
UniProt & NIH Common Fund Data Resources
Find proteins for P42701 (Homo sapiens)
Explore P42701 
Go to UniProtKB:  P42701
PHAROS:  P42701
GTEx:  ENSG00000096996 
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UniProt GroupP42701
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 5
MoleculeChains Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
E
3N-Glycosylation
Glycosylation Resources
GlyTouCan:  G15407YE
GlyCosmos:  G15407YE
GlyGen:  G15407YE
Entity ID: 6
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
F
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free:  0.295 (Depositor), 0.300 (DCC) 
  • R-Value Work:  0.238 (Depositor), 0.240 (DCC) 
  • R-Value Observed: 0.243 (Depositor) 
Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.712α = 90
b = 118.483β = 90
c = 186.151γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted NAGClick on this verticalbar to view details

Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)5R01CA177684

Revision History  (Full details and data files)

  • Version 1.0: 2021-02-24
    Type: Initial release
  • Version 1.1: 2021-03-03
    Changes: Database references
  • Version 1.2: 2021-05-05
    Changes: Database references
  • Version 1.3: 2023-10-18
    Changes: Data collection, Database references, Refinement description
  • Version 1.4: 2024-10-16
    Changes: Structure summary