PMID- 17259989
OWN - NLM
STAT- MEDLINE
DCOM- 20070501
LR  - 20071108
IS  - 1529-2908 (Print)
IS  - 1529-2908 (Linking)
VI  - 8
IP  - 3
DP  - 2007 Mar
TI  - A T cell receptor flattens a bulged antigenic peptide presented by a major
      histocompatibility complex class I molecule.
PG  - 268-76
AB  - Plasticity of the T cell receptor (TCR) is a hallmark of major histocompatibility
      complex (MHC)-restricted T cell recognition. However, it is unclear whether
      interactions of TCR and peptide-MHC class I (pMHCI) always conform to this
      paradigm. Here we describe the structure of a TCR, ELS4, in its non-ligand-bound 
      form and in complex with a prominent 'bulged' Epstein-Barr virus peptide bound to
      HLA-B(*)3501. This complex was atypical of previously characterized TCR-pMHCI
      interactions in that a rigid face of the TCR crumpled the bulged antigenic
      determinant. This peptide 'bulldozing' created a more featureless pMHCI
      determinant, allowing the TCR to maximize MHC class I contacts essential for MHC 
      class I restriction of TCR recognition. Our findings represent a mechanism of
      antigen recognition whereby the plasticity of the T cell response is dictated
      mainly by adjustments in the MHC-bound peptide.
FAU - Tynan, Fleur E
AU  - Tynan FE
AD  - Protein Crystallography Unit, Department of Biochemistry and Molecular Biology,
      School of Biomedical Sciences, Monash University, Clayton, Victoria 3800,
      Australia.
FAU - Reid, Hugh H
AU  - Reid HH
FAU - Kjer-Nielsen, Lars
AU  - Kjer-Nielsen L
FAU - Miles, John J
AU  - Miles JJ
FAU - Wilce, Matthew C J
AU  - Wilce MC
FAU - Kostenko, Lyudmila
AU  - Kostenko L
FAU - Borg, Natalie A
AU  - Borg NA
FAU - Williamson, Nicholas A
AU  - Williamson NA
FAU - Beddoe, Travis
AU  - Beddoe T
FAU - Purcell, Anthony W
AU  - Purcell AW
FAU - Burrows, Scott R
AU  - Burrows SR
FAU - McCluskey, James
AU  - McCluskey J
FAU - Rossjohn, Jamie
AU  - Rossjohn J
LA  - eng
SI  - PDB/2NW2
SI  - PDB/2NW3
SI  - PDB/2NX5
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070128
PL  - United States
TA  - Nat Immunol
JT  - Nature immunology
JID - 100941354
RN  - 0 (Antigens, Viral)
RN  - 0 (Epitopes, T-Lymphocyte)
RN  - 0 (Histocompatibility Antigens Class I)
RN  - 0 (Receptors, Antigen, T-Cell)
SB  - IM
MH  - Animals
MH  - Antigen Presentation/*immunology
MH  - Antigens, Viral/*chemistry/immunology
MH  - Epitopes, T-Lymphocyte/*chemistry/immunology
MH  - Flow Cytometry
MH  - Histocompatibility Antigens Class I/*chemistry/immunology
MH  - Humans
MH  - Protein Structure, Quaternary
MH  - Receptors, Antigen, T-Cell/*chemistry/immunology
EDAT- 2007/01/30 09:00
MHDA- 2007/05/02 09:00
CRDT- 2007/01/30 09:00
PHST- 2006/10/05 00:00 [received]
PHST- 2006/12/20 00:00 [accepted]
PHST- 2007/01/30 09:00 [pubmed]
PHST- 2007/05/02 09:00 [medline]
PHST- 2007/01/30 09:00 [entrez]
AID - ni1432 [pii]
AID - 10.1038/ni1432 [doi]
PST - ppublish
SO  - Nat Immunol. 2007 Mar;8(3):268-76. doi: 10.1038/ni1432. Epub 2007 Jan 28.