4QIP

Crystal Structure of Major Birch Pollen Allergen Bet v 1 isoform a in complex with Sodium Dodecyl Sulfate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.245 
  • R-Value Observed: 0.247 

Starting Model: experimental
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Literature

Ligand binding modulates the structural dynamics and compactness of the major birch pollen allergen

Grutsch, S.Fuchs, J.E.Freier, R.Kofler, S.Bibi, M.Asam, C.Wallner, M.Ferreira, F.Brandstetter, H.Liedl, K.R.Tollinger, M.

(2014) Biophys J 107: 2963-2972

  • DOI: https://doi.org/10.1016/j.bpj.2014.10.062
  • Primary Citation of Related Structures:  
    4QIP

  • PubMed Abstract: 

    Pathogenesis-related plant proteins of class-10 (PR-10) are essential for storage and transport of small molecules. A prominent member of the PR-10 family, the major birch pollen allergen Bet v 1, is the main cause of spring pollinosis in the temperate climate zone of the northern hemisphere. Bet v 1 binds various ligand molecules to its internal cavity, and immunologic effects of the presence of ligand have been discussed. However, the mechanism of binding has remained elusive. In this study, we show that in solution Bet v 1.0101 is conformationally heterogeneous and cannot be represented by a single structure. NMR relaxation data suggest that structural dynamics are fundamental for ligand access to the protein interior. Complex formation then leads to significant rigidification of the protein along with a compaction of its 3D structure. The data presented herein provide a structural basis for understanding the immunogenic and allergenic potential of ligand binding to Bet v 1 allergens.


  • Organizational Affiliation

    Institute of Organic Chemistry, University of Innsbruck, Innsbruck, Austria.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Major pollen allergen Bet v 1-A159Betula pendulaMutation(s): 0 
Gene Names: BETVIABETVI
UniProt
Find proteins for P15494 (Betula pendula)
Explore P15494 
Go to UniProtKB:  P15494
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP15494
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.245 
  • R-Value Observed: 0.247 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 32.71α = 90
b = 55.59β = 93.71
c = 37.91γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
MxCuBEdata collection

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description