1C16

CRYSTAL STRUCTURE ANALYSIS OF THE GAMMA/DELTA T CELL LIGAND T22


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.334 
  • R-Value Work: 0.284 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of a gammadelta T cell receptor ligand T22: a truncated MHC-like fold.

Wingren, C.Crowley, M.P.Degano, M.Chien, Y.Wilson, I.A.

(2000) Science 287: 310-314


  • PubMed Abstract: 
  • Murine T10 and T22 are highly related nonclassical major histocompatibility complex (MHC) class Ib proteins that bind to certain gammadelta T cell receptors (TCRs) in the absence of other components. The crystal structure of T22b at 3.1 angstroms rev ...

    Murine T10 and T22 are highly related nonclassical major histocompatibility complex (MHC) class Ib proteins that bind to certain gammadelta T cell receptors (TCRs) in the absence of other components. The crystal structure of T22b at 3.1 angstroms reveals similarities to MHC class I molecules, but one side of the normal peptide-binding groove is severely truncated, which allows direct access to the beta-sheet floor. Potential gammadelta TCR-binding sites can be inferred from functional mapping of T10 and T22 point mutants and allelic variants. Thus, T22 represents an unusual variant of the MHC-like fold and indicates that gammadelta and alphabeta TCRs interact differently with their respective MHC ligands.


    Organizational Affiliation

    Department of Molecular Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MHC-LIKE PROTEIN T22
A, C, E, G
260Mus musculusGene Names: H2-T22
Find proteins for Q31615 (Mus musculus)
Go to UniProtKB:  Q31615
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (BETA-2-MICROGLOBULIN)
B, D, F, H
99Homo sapiensGene Names: B2M
Find proteins for P61769 (Homo sapiens)
Go to Gene View: B2M
Go to UniProtKB:  P61769
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.334 
  • R-Value Work: 0.284 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 167.110α = 90.00
b = 91.470β = 90.00
c = 122.470γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-01-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance