1KB5

MURINE T-CELL RECEPTOR VARIABLE DOMAIN/FAB COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The three-dimensional structure of a T-cell antigen receptor V alpha V beta heterodimer reveals a novel arrangement of the V beta domain.

Housset, D.Mazza, G.Gregoire, C.Piras, C.Malissen, B.Fontecilla-Camps, J.C.

(1997) EMBO J. 16: 4205-4216


  • PubMed Abstract: 
  • The crystal structure of a mouse T-cell antigen receptor (TCR) Fv fragment complexed to the Fab fragment of a specific anti-clonotypic antibody has been determined to 2.6 A resolution. The polypeptide backbone of the TCR V alpha domain is very simila ...

    The crystal structure of a mouse T-cell antigen receptor (TCR) Fv fragment complexed to the Fab fragment of a specific anti-clonotypic antibody has been determined to 2.6 A resolution. The polypeptide backbone of the TCR V alpha domain is very similar to those of other crystallographically determined V alphas, whereas the V beta structure is so far unique among TCR V beta domains in that it displays a switch of the c" strand from the inner to the outer beta-sheet. The beta chain variable region of this TCR antigen-binding site is characterized by a rather elongated third complementarity-determining region (CDR3beta) that packs tightly against the CDR3 loop of the alpha chain, without leaving any intervening hydrophobic pocket. Thus, the conformation of the CDR loops with the highest potential diversity distinguishes the structure of this TCR antigen-binding site from those for which crystallographic data are available. On the basis of all these results, we infer that a significant conformational change of the CDR3beta loop found in our TCR is required for binding to its cognate peptide-MHC ligand.


    Related Citations: 
    • Engineered Secreted T-Cell Receptor Alpha Beta Heterodimers
      Gregoire, C.,Rebai, N.,Schweisguth, F.,Necker, A.,Mazza, G.,Auphan, N.,Millward, A.,Schmitt-Verhulst, A.M.,Malissen, B.
      (1991) Proc.Natl.Acad.Sci.USA 88: 8077
    • Crystal Structure of the Beta Chain of a T Cell Antigen Receptor
      Bentley, G.A.,Boulot, G.,Karjalainen, K.,Mariuzza, R.A.
      (1995) Science 267: 1984
    • An Alphabeta T Cell Receptor Structure at 2.5 A and its Orientation in the Tcr-Mhc Complex
      Garcia, K.C.,Degano, M.,Stanfield, R.L.,Brunmark, A.,Jackson, M.R.,Peterson, P.A.,Teyton, L.,Wilson, I.A.
      (1996) Science 274: 209
    • Crystal Structure of the V Alpha Domain of a T Cell Antigen Receptor
      Fields, B.A.,Ober, B.,Malchiodi, E.L.,Lebedeva, M.I.,Braden, B.C.,Ysern, X.,Kim, J.K.,Shao, X.,Ward, E.S.,Mariuzza, R.A.
      (1995) Science 270: 1821
    • Structure of the Complex between Human T-Cell Receptor, Viral Peptide and Hla-A2
      Garboczi, D.N.,Ghosh, P.,Utz, U.,Fan, Q.R.,Biddison, W.E.,Wiley, D.C.
      (1996) Nature 384: 134


    Organizational Affiliation

    Laboratoire de Cristallographie et Cristallogénèse des Protéines, Institut de Biologie Structurale Jean-Pierre Ebel CEA-CNRS, Grenoble, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
KB5-C20 T-CELL ANTIGEN RECEPTOR
A
115N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
KB5-C20 T-CELL ANTIGEN RECEPTOR
B
117Mus musculusN/A
Find proteins for P04214 (Mus musculus)
Go to UniProtKB:  P04214
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
ANTIBODY DESIRE-1
L
214Mus musculusN/A
Find proteins for P01837 (Mus musculus)
Go to UniProtKB:  P01837
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
ANTIBODY DESIRE-1
H
219Mus musculusGene Names: Igh-1a
Find proteins for P01865 (Mus musculus)
Go to UniProtKB:  P01865
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.219 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 187.310α = 90.00
b = 80.950β = 90.00
c = 52.080γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
XSCALEdata scaling
REFMACrefinement
XDSdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-04-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance