8B7W

Complex IL-17A/anti-IL-17A-76


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Two Epitope Regions Revealed in the Complex of IL-17A and Anti-IL-17A V H H Domain.

Kostareva, O.Svoeglazova, A.Kolyadenko, I.Nikulin, A.Evdokimov, S.Dzhus, U.Gabdulkhakov, A.Tishchenko, S.

(2022) Int J Mol Sci 23

  • DOI: https://doi.org/10.3390/ijms232314904
  • Primary Citation of Related Structures:  
    8B7W

  • PubMed Abstract: 

    Interleukin-17 (IL-17) is a cytokine produced by the Th17 cells. It is involved in chronic inflammation in patients with autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, multiple sclerosis, and psoriasis. The antibodies targeting IL-17 and/or IL-17R are therapy tools for these diseases. Netakimab is an IL-17A-specific antibody containing a Lama glama V H H derivative domain and a VL variable domain. We have determined the crystal structure of the IL-17A-specific V H H domain in complex with IL-17A at 2.85 Å resolution. Certain amino acid residues of the three complementary-determining regions of the V H H domain form a network of solvent-inaccessible hydrogen bonds with two epitope regions of IL-17A. The β-turn of IL-17A, which forms the so-called epitope-1, appears to be the main region of IL-17A interaction with the antibody. Contacts formed by the IL-17A mobile C-terminal region residues (epitope-2) further stabilize the antibody-antigen complex.


  • Organizational Affiliation

    Institute of Protein Research, Russian Academy of Sciences, Institutskaya, 4, 142290 Pushchino, Russia.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
anti-IL-17A-76A [auth H]125Lama glamaMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-17AB [auth C]122Homo sapiensMutation(s): 2 
Gene Names: IL17ACTLA8IL17
UniProt & NIH Common Fund Data Resources
Find proteins for Q16552 (Homo sapiens)
Explore Q16552 
Go to UniProtKB:  Q16552
PHAROS:  Q16552
GTEx:  ENSG00000112115 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16552
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.05α = 90
b = 71.05β = 90
c = 106.04γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2022-12-28
    Type: Initial release
  • Version 1.1: 2024-01-31
    Changes: Data collection, Refinement description
  • Version 1.2: 2024-11-13
    Changes: Structure summary