5J13

Structural basis for TSLP antagonism by the therapeutic antibody Tezepelumab (MEDI9929 / AMG-157)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.190 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


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: https://doi.org/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. 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

    VIB-UGent Center for Inflammation Research, Zwijnaarde, Ghent 9052, Belgium.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Thymic stromal lymphopoietin147Homo 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
GTEx:  ENSG00000145777 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ969D9
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
anti-TSLP Fab-fragment, light chain245Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
anti-TSLP Fab-fragment, heavy chain263Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.190 
  • Space Group: P 32 1 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.726α = 90
b = 51.726β = 90
c = 370.028γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
PHASERphasing
Cootmodel building

Structure Validation

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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: 2024-01-10
    Changes: Data collection, Database references, Refinement description