5MZV

IL-23:IL-23R:Nb22E11 complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

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This is version 2.0 of the entry. See complete history. 


Literature

Structural Activation of Pro-inflammatory Human Cytokine IL-23 by Cognate IL-23 Receptor Enables Recruitment of the Shared Receptor IL-12R beta 1.

Bloch, Y., Bouchareychas, L., Merceron, R., Skladanowska, K., Van den Bossche, L., Detry, S., Govindarajan, S., Elewaut, D., Haerynck, F., Dullaers, M., Adamopoulos, I.E., Savvides, S.N.

(2018) Immunity 48: 45-58.e6

  • DOI: 10.1016/j.immuni.2017.12.008
  • Primary Citation of Related Structures:  
    5MXA, 5MZV, 5N2K, 5NJD

  • PubMed Abstract: 

    • Interleukin-23 (IL-23), an IL-12 family cytokine, plays pivotal roles in pro-inflammatory T helper 17 cell responses linked to autoimmune and inflammatory diseases. Despite intense therapeutic targeting, structural and mechanistic insights into receptor complexes mediated by IL-23, and by IL-12 family members in general, have remained elusive ...

    Interleukin-23 (IL-23), an IL-12 family cytokine, plays pivotal roles in pro-inflammatory T helper 17 cell responses linked to autoimmune and inflammatory diseases. Despite intense therapeutic targeting, structural and mechanistic insights into receptor complexes mediated by IL-23, and by IL-12 family members in general, have remained elusive. We determined a crystal structure of human IL-23 in complex with its cognate receptor, IL-23R, and revealed that IL-23R bound to IL-23 exclusively via its N-terminal immunoglobulin domain. The structural and functional hotspot of this interaction partially restructured the helical IL-23p19 subunit of IL-23 and restrained its IL-12p40 subunit to cooperatively bind the shared receptor IL-12Rβ1 with high affinity. Together with structural insights from the interaction of IL-23 with the inhibitory antibody briakinumab and by leveraging additional IL-23:antibody complexes, we propose a mechanistic paradigm for IL-23 and IL-12 whereby cognate receptor binding to the helical cytokine subunits primes recruitment of the shared receptors via the IL-12p40 subunit.

    Organizational Affiliation: 

    Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium. Electronic address: savvas.savvides@ugent.be.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-12 subunit betaA328Homo sapiensMutation(s): 0 
Gene Names: IL12B, NKSF2
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
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-23 subunit alphaB198Homo sapiensMutation(s): 0 
Gene Names: IL23A, SGRF, UNQ2498/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  
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UniProt GroupQ9NPF7
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-23 receptorC330Homo sapiensMutation(s): 0 
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  
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UniProt GroupQ5VWK5
Protein Feature View
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Nanobody 22E11D156Lama glamaMutation(s): 0 
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Oligosaccharides

Help

Entity ID: 5
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseE 7N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G07617FP
GlyCosmos:  G07617FP
GlyGen:  G07617FP
Entity ID: 6
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseF, H, I 2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Entity ID: 7
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseG 3N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G15407YE
GlyCosmos:  G15407YE
GlyGen:  G15407YE
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG
Download Ideal Coordinates CCD File 
N [auth C],
O [auth C]		2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N		 Ligand Interaction
CL
Query on CL
Download Ideal Coordinates CCD File 
J [auth A],
L [auth C],
M [auth C]		CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M		 Ligand Interaction
NA
Query on NA
Download Ideal Coordinates CCD File 
K [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.219α = 90
b = 112.19β = 106.24
c = 109.87γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
BUSTERrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
VLAIOBelgium--

Revision History  (Full details and data files)

  • Version 1.0: 2018-01-03
    Type: Initial release
  • Version 1.1: 2018-01-10
    Changes: Database references
  • Version 1.2: 2018-01-31
    Changes: Database references
  • Version 1.3: 2018-02-07
    Changes: Structure summary
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary