X-ray Structure Of Der P 2, The Major House Dust Mite Allergen

Experimental Data Snapshot

  • Resolution: 2.15 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.210 

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The crystal structure of a major dust mite allergen Der p 2, and its biological implications.

Derewenda, U.Li, J.Derewenda, Z.Dauter, Z.Mueller, G.A.Rule, G.S.Benjamin, D.C.

(2002) J Mol Biol 318: 189-197

  • DOI: https://doi.org/10.1016/S0022-2836(02)00027-X
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The crystal structure of the common house mite (Dermatophagoides sp.) Der p 2 allergen was solved at 2.15 A resolution using the MAD phasing technique, and refined to an R-factor of 0.209. The refined atomic model, which reveals an immunoglobulin-like tertiary fold, differs in important ways from the previously described NMR structure, because the two beta-sheets are significantly further apart and create an internal cavity, which is occupied by a hydrophobic ligand. This interaction is structurally reminiscent of the binding of a prenyl group by a regulatory protein, the Rho guanine nucleotide exchange inhibitor. The crystal structure suggests that binding of non-polar molecules may be essential to the physiological function of the Der p 2 protein.

  • Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA. ud3a@virginia.edu

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
129Dermatophagoides pteronyssinusMutation(s): 1 
Membrane Entity: Yes 
Find proteins for P49278 (Dermatophagoides pteronyssinus)
Explore P49278 
Go to UniProtKB:  P49278
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49278
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.15 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.210 
  • Space Group: P 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.692α = 90
b = 108.747β = 90
c = 91.971γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-05-15
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-10-27
    Changes: Data collection, Database references