2QTE

Crystal Structure of Novel Immune-Type Receptor 11 Extracellular Fragment Mutant N30D


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A bony fish immunological receptor of the NITR multigene family mediates allogeneic recognition.

Cannon, J.P.Haire, R.N.Magis, A.T.Eason, D.D.Winfrey, K.N.Hernandez Prada, J.A.Bailey, K.M.Jakoncic, J.Litman, G.W.Ostrov, D.A.

(2008) Immunity 29: 228-237

  • DOI: 10.1016/j.immuni.2008.05.018
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Novel immune-type receptors (NITRs) comprise an exceptionally large, diversified family of activating and inhibitory receptors that has been identified in bony fish. Here, we characterized the structure of an activating NITR that is expressed by a cy ...

    Novel immune-type receptors (NITRs) comprise an exceptionally large, diversified family of activating and inhibitory receptors that has been identified in bony fish. Here, we characterized the structure of an activating NITR that is expressed by a cytotoxic natural killer (NK)-like cell line and that specifically binds an allogeneic B cell target. A single amino acid residue within the NITR immunoglobulin variable (V)-type domain accounts for specificity of the interaction. Structures solved by X-ray crystallography revealed that the V-type domains of NITRs form homodimers resembling rearranging antigen-binding receptor heterodimers. CDR1 elements of both subunits of NITR dimers form ligand-binding surfaces that determine specificity for the nonself target. In the evolution of immune function, it appears that a specific NK type of innate recognition may be mediated by a complex germline multigene family of V structures resembling those that are somatically diversified in adaptive immunological responses.


    Organizational Affiliation

    Department of Pediatrics, University of South Florida College of Medicine, St. Petersburg, FL 33701, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Novel immune-type receptor 11
A, B, C, D
111N/AMutation(s): 1 
Gene Names: NITR11
Find proteins for Q8UWK4 (Ictalurus punctatus)
Go to UniProtKB:  Q8UWK4
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.198 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.476α = 90
b = 68.662β = 90
c = 99.632γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
SHELXSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description