2JON

Solution structure of the C-terminal domain Ole e 9


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

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This is version 1.1 of the entry. See complete history


Literature

Solution structure of the C-terminal domain of Ole e 9, a major allergen of olive pollen

Trevino, M.A.Palomares, O.Castrillo, I.Villalba, M.Rodriguez, R.Rico, M.Santoro, J.Bruix, M.

(2008) Protein Sci 17: 371-376

  • DOI: 10.1110/ps.073230008
  • Primary Citation of Related Structures:  
    2JON

  • PubMed Abstract: 
  • Ole e 9 is an olive pollen allergen belonging to group 2 of pathogenesis-related proteins. The protein is composed of two immunological independent domains: an N-terminal domain (NtD) with 1,3-beta-glucanase activity, and a C-terminal domain (CtD) that b ...

    Ole e 9 is an olive pollen allergen belonging to group 2 of pathogenesis-related proteins. The protein is composed of two immunological independent domains: an N-terminal domain (NtD) with 1,3-beta-glucanase activity, and a C-terminal domain (CtD) that binds 1,3-beta-glucans. We have determined the three-dimensional structure of CtD-Ole e 9 (101 amino acids), which consists of two parallel alpha-helices forming an angle of approximately 55 degrees , a small antiparallel beta-sheet with two short strands, and a 3-10 helix turn, all connected by long coil segments, resembling a novel type of folding among allergens. Two regions surrounded by aromatic residues (F49, Y60, F96, Y91 and Y31, H68, Y65, F78) have been localized on the protein surface, and a role for sugar binding is suggested. The epitope mapping of CtD-Ole e 9 shows that B-cell epitopes are mainly located on loops, although some of them are contained in secondary structural elements. Interestingly, the IgG and IgE epitopes are contiguous or overlapped, rather than coincident. The three-dimensional structure of CtD-Ole e 9 might help to understand the underlying mechanism of its biochemical function and to determine possible structure-allergenicity relationships.


    Organizational Affiliation

    Departamento de Espectroscopía y Estructura Molecular, Instituto de Química Física Rocasolano, CSIC, 28006 Madrid, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-1,3-glucanase A101Olea europaeaMutation(s): 0 
Gene Names: OLE9
EC: 3.2.1.39
Find proteins for Q94G86 (Olea europaea)
Explore Q94G86 
Go to UniProtKB:  Q94G86
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2JON Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-01-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance