1NAM

MURINE ALLOREACTIVE SCFV TCR-PEPTIDE-MHC CLASS I MOLECULE COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

CDR3 loop flexibility contributes to the degeneracy of TCR recognition

Reiser, J.-B.Darnault, C.Gregoire, C.Mosser, T.Mazza, G.Kearnay, A.van der Merwe, P.A.Fontecilla-Camps, J.C.Housset, D.Malissen, B.

(2003) Nat.Immunol. 4: 241-247

  • DOI: 10.1038/ni891
  • Primary Citation of Related Structures:  1NAN
  • Also Cited By: 2CLV, 2CLZ

  • PubMed Abstract: 
  • T cell receptor (TCR) binding degeneracy lies at the heart of several physiological and pathological phenomena, yet its structural basis is poorly understood. We determined the crystal structure of a complex involving the BM3.3 TCR and an octapeptide ...

    T cell receptor (TCR) binding degeneracy lies at the heart of several physiological and pathological phenomena, yet its structural basis is poorly understood. We determined the crystal structure of a complex involving the BM3.3 TCR and an octapeptide (VSV8) bound to the H-2K(b) major histocompatibility complex molecule at a 2.7 A resolution, and compared it with the BM3.3 TCR bound to the H-2K(b) molecule loaded with a peptide that has no primary sequence identity with VSV8. Comparison of these structures showed that the BM3.3 TCR complementarity-determining region (CDR) 3alpha could undergo rearrangements to adapt to structurally different peptide residues. Therefore, CDR3 loop flexibility helps explain TCR binding cross-reactivity.


    Related Citations: 
    • Crystal structure of a T cell receptor bound to an allogeneic MHC molecule
      Reiser, J.-B.,Darnault, C.,Guimezanes, A.,Gregoire, C.,Mosser, T.,Schmitt-Verhulst, A.-M.,Fontecilla-Camps, J.C.,Malissen, B.,Housset, D.,Mazza, G.
      (2000) Nat.Immunol. 1: 291
    • Crystal Structures of Two Viral Peptides in Complex with Murine MHC Class I H-2Kb
      Fremont, D.H.,Matsumura, M.,Stura, E.A.,Peterson, P.A.,Wilson, I.A.
      (1992) Science 257: 919
    • A T-Cell Receptor CDR3Beta Loop Undergoes Conformational Changes of Unprecedented Magnitude Upon Binding to a Peptide/MHC Class I Complex
      Reiser, J.-B.,Gregoire, C.,Darnault, C.,Mosser, T.,Guimezanes, A.,Schmitt-Verhulst, A.-M.,Fontecilla-Camps, J.C.,Mazza, G.,Malissen, B.,Housset, D.
      (2002) Immunity 16: 345


    Organizational Affiliation

    Laboratoire de Cristallographie et Cristallogenèse des Protéines, Institut de Biologie Structurale J.-P. Ebel, CEA-CNRS-UJF, 41 rue Jules Horowitz, F-38027 Grenoble Cedex 1, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BM3.3 T Cell Receptor alpha-Chain
A
116Mus musculusGene Names: TRADV16D (TRAV16)
Find proteins for Q5R1F1 (Mus musculus)
Go to UniProtKB:  Q5R1F1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BM3.3 T Cell Receptor beta-Chain
B
113Mus musculusN/A
Find proteins for P04214 (Mus musculus)
Go to UniProtKB:  P04214
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
H-2 class I histocompatibility antigen, K-B alpha chain precursor
H
275Mus musculusGene Names: H2-K1 (H2-K)
Find proteins for P01901 (Mus musculus)
Go to UniProtKB:  P01901
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Nucleocapsid
P
8Vesicular stomatitis Indiana virus (strain Glasgow)Gene Names: N
Find proteins for P11212 (Vesicular stomatitis Indiana virus (strain Glasgow))
Go to UniProtKB:  P11212
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Beta-2-microglobulin
L
100Mus musculusGene Names: B2m
Find proteins for P01887 (Mus musculus)
Go to UniProtKB:  P01887
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.230 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 101.860α = 90.00
b = 101.860β = 90.00
c = 201.360γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
AMoREphasing
REFMACrefinement
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-03-11
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance