Crystal Structure of extracellular domain of mouse NKR-P1A

Experimental Data Snapshot

  • Resolution: 1.70 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

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Molecular architecture of mouse activating NKR-P1 receptors.

Kolenko, P.Rozbesky, D.Vanek, O.Kopecky, V.Hofbauerova, K.Novak, P.Pompach, P.Hasek, J.Skalova, T.Bezouska, K.Dohnalek, J.

(2011) J Struct Biol 175: 434-441

  • DOI: https://doi.org/10.1016/j.jsb.2011.05.001
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Receptors belonging to NKR-P1 family and their specific Clr ligands form an alternative missing self recognition system critical in immunity against tumors and viruses, elimination of tumor cells subjected to genotoxic stress, activation of T cell dependent immune response, and hypertension. The three-dimensional structure of the extracellular domain of the mouse natural killer (NK) cell receptor mNKR-P1Aex has been determined by X-ray diffraction. The core of the C-type lectin domain (CTLD) is homologous to the other CTLD receptors whereas one quarter of the domain forms an extended loop interacting tightly with a neighboring loop in the crystal. This domain swapping mechanism results in a compact interaction interface. A second dimerization interface resembles the known arrangement of other CTLD NK receptors. A functional dimeric form of the receptor is suggested, with the loop, evolutionarily conserved within this family, proposed to participate in interactions with ligands.

  • Organizational Affiliation

    Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovského náměstí 2, 16206 Prague 6, Czech Republic.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Killer cell lectin-like receptor subfamily B member 1A139Mus musculusMutation(s): 2 
Gene Names: Klrb1aLy55Ly55aNkrp1a
Find proteins for P27811 (Mus musculus)
Explore P27811 
Go to UniProtKB:  P27811
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27811
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on PO4

Download Ideal Coordinates CCD File 
O4 P
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.912α = 90
b = 59.912β = 90
c = 159.303γ = 90
Software Package:
Software NamePurpose
MxCuBEdata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-04-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2015-02-18
    Changes: Database references
  • Version 1.3: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description