5J11

Structure of human TSLP in complex with TSLPR and IL-7Ralpha


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.193 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Structure and antagonism of the receptor complex mediated by human TSLP in allergy and asthma.

Verstraete, K.Peelman, F.Braun, H.Lopez, J.Van Rompaey, D.Dansercoer, A.Vandenberghe, I.Pauwels, K.Tavernier, J.Lambrecht, B.N.Hammad, H.De Winter, H.Beyaert, R.Lippens, G.Savvides, S.N.

(2017) Nat Commun 8: 14937-14937

  • DOI: 10.1038/ncomms14937
  • Primary Citation of Related Structures:  
    5J11, 5J13

  • PubMed Abstract: 
  • The pro-inflammatory cytokine thymic stromal lymphopoietin (TSLP) is pivotal to the pathophysiology of widespread allergic diseases mediated by type 2 helper T cell (Th2) responses, including asthma and atopic dermatitis. The emergence of human TSLP as a clinical target against asthma calls for maximally harnessing its therapeutic potential via structural and mechanistic considerations ...

    The pro-inflammatory cytokine thymic stromal lymphopoietin (TSLP) is pivotal to the pathophysiology of widespread allergic diseases mediated by type 2 helper T cell (Th2) responses, including asthma and atopic dermatitis. The emergence of human TSLP as a clinical target against asthma calls for maximally harnessing its therapeutic potential via structural and mechanistic considerations. Here we employ an integrative experimental approach focusing on productive and antagonized TSLP complexes and free cytokine. We reveal how cognate receptor TSLPR allosterically activates TSLP to potentiate the recruitment of the shared interleukin 7 receptor α-chain (IL-7Rα) by leveraging the flexibility, conformational heterogeneity and electrostatics of the cytokine. We further show that the monoclonal antibody Tezepelumab partly exploits these principles to neutralize TSLP activity. Finally, we introduce a fusion protein comprising a tandem of the TSLPR and IL-7Rα extracellular domains, which harnesses the mechanistic intricacies of the TSLP-driven receptor complex to manifest high antagonistic potency.


    Organizational Affiliation

    Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, Ghent 9000, Belgium.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thymic stromal lymphopoietinA147Homo sapiensMutation(s): 0 
Gene Names: TSLP
UniProt & NIH Common Fund Data Resources
Find proteins for Q969D9 (Homo sapiens)
Explore Q969D9 
Go to UniProtKB:  Q969D9
PHAROS:  Q969D9
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-7 receptor subunit alphaB240Homo sapiensMutation(s): 0 
Gene Names: IL7R
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Find proteins for P16871 (Homo sapiens)
Explore P16871 
Go to UniProtKB:  P16871
PHAROS:  P16871
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Cytokine receptor-like factor 2C230Homo sapiensMutation(s): 0 
Gene Names: CRLF2CRL2ILXRTSLPR
UniProt & NIH Common Fund Data Resources
Find proteins for Q9HC73 (Homo sapiens)
Explore Q9HC73 
Go to UniProtKB:  Q9HC73
PHAROS:  Q9HC73
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
E [auth C], F [auth C]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
PGE
Query on PGE

Download Ideal Coordinates CCD File 
D [auth C]TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.193 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 135.783α = 90
b = 66.644β = 109.2
c = 91.971γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
PHASERphasing
Cootmodel building

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-04-05
    Type: Initial release
  • Version 1.1: 2017-04-19
    Changes: Database references
  • Version 1.2: 2018-02-28
    Changes: Source and taxonomy
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary