1kgc
From Proteopedia
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'''Immune Receptor''' | '''Immune Receptor''' | ||
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[[Category: Purcell, A W.]] | [[Category: Purcell, A W.]] | ||
[[Category: Rossjohn, J.]] | [[Category: Rossjohn, J.]] | ||
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| - | [[Category: | + | [[Category: T-cell receptor]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:42:49 2008'' | |
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Revision as of 19:42, 2 May 2008
Immune Receptor
Overview
Despite a potential repertoire of >10(15) alphabeta T cell receptors (TcR), the HLA B8-restricted cytolytic T cell response to a latent antigen of Epstein-Barr virus (EBV) is strikingly limited in the TcR sequences that are selected. Even in unrelated individuals this response is dominated by a single highly restricted TcR clonotype that selects identical combinations of hypervariable Valpha, Vbeta, D, J, and N region genes. We have determined the 1.5 A crystal structure of this "public" TcR, revealing that five of the six hypervariable loops adopt novel conformations providing a unique combining site that contains a deep pocket predicted to overlay the HLA B8-peptide complex. The findings suggest a structural basis for the immunodominance of this clonotype in the immune response to EBV.
About this Structure
1KGC is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The 1.5 A crystal structure of a highly selected antiviral T cell receptor provides evidence for a structural basis of immunodominance., Kjer-Nielsen L, Clements CS, Brooks AG, Purcell AW, McCluskey J, Rossjohn J, Structure. 2002 Nov;10(11):1521-32. PMID:12429093 Page seeded by OCA on Fri May 2 22:42:49 2008
