2cik
From Proteopedia
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[[Image:2cik.jpg|left|200px]] | [[Image:2cik.jpg|left|200px]] | ||
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'''INSIGHTS INTO CROSSREACTIVITY IN HUMAN ALLORECOGNITION: THE STRUCTURE OF HLA-B35011 PRESENTING AN EPITOPE DERIVED FROM CYTOCHROME P450.''' | '''INSIGHTS INTO CROSSREACTIVITY IN HUMAN ALLORECOGNITION: THE STRUCTURE OF HLA-B35011 PRESENTING AN EPITOPE DERIVED FROM CYTOCHROME P450.''' | ||
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[[Category: Jones, E Y.]] | [[Category: Jones, E Y.]] | ||
[[Category: Peterson, N A.]] | [[Category: Peterson, N A.]] | ||
- | [[Category: | + | [[Category: Allo-ligand]] |
- | [[Category: | + | [[Category: Antigen/peptide complex]] |
- | [[Category: | + | [[Category: Ebv]] |
- | [[Category: | + | [[Category: Glycoprotein]] |
- | [[Category: | + | [[Category: Hla]] |
- | [[Category: | + | [[Category: Hla-b3501]] |
- | [[Category: | + | [[Category: Human]] |
- | [[Category: | + | [[Category: Immune response]] |
- | [[Category: | + | [[Category: Immunoglobulin domain]] |
- | [[Category: | + | [[Category: Major histocompatibility antigen]] |
- | [[Category: | + | [[Category: Membrane]] |
- | [[Category: | + | [[Category: Mhc]] |
- | [[Category: | + | [[Category: Mhc i]] |
- | [[Category: | + | [[Category: Polymorphism]] |
- | [[Category: | + | [[Category: Pyrrolidone carboxylic acid]] |
- | [[Category: | + | [[Category: Transmembrane]] |
- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 22:13:32 2008'' | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 19:13, 3 May 2008
INSIGHTS INTO CROSSREACTIVITY IN HUMAN ALLORECOGNITION: THE STRUCTURE OF HLA-B35011 PRESENTING AN EPITOPE DERIVED FROM CYTOCHROME P450.
Overview
Virus-specific T cell populations have been implicated in allo-recognition. The subdominant T cell receptor JL12 recognizes both HLA-B*0801 presenting the Epstein-Barr virus-derived peptide FLRGRAYGL and also HLA-B*3501 presenting the cytochrome p450 self peptide KPIVVLHGY. This cross-reactivity could promote the rejection of HLA-B*3501-positive cells in Epstein-Barr virus-exposed HLA-B*0801 recipients. LC13, the dominant TCR against the HLA-B*0801:FLRGRAYGL complex, fails to recognize HLA-B*3501:KPIVVLHGY. We report the 1.75-Angstrom resolution crystal structure of the human allo-ligand HLA-B*3501:KPIVVLHGY. Similarities between this structure and that of HLA-B*0801:FLRGRAYGL may facilitate cross-recognition by JL12. Moreover, the elevated peptide position in HLA-B*3501:KPIVVLHGY would provide steric hindrance to LC13, preventing it from interacting in the manner in which it interacts with HLA-B*0801:FLRGRAYGL. These findings are relevant to understanding the basis of T cell cross-reactivity in allo-recognition, optimal transplant donor-recipient matching and developing specific molecular inhibitors of allo-recognition.
About this Structure
2CIK is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The structure of the human allo-ligand HLA-B*3501 in complex with a cytochrome p450 peptide: steric hindrance influences TCR allo-recognition., Hourigan CS, Harkiolaki M, Peterson NA, Bell JI, Jones EY, O'Callaghan CA, Eur J Immunol. 2006 Dec;36(12):3288-93. PMID:17109469 Page seeded by OCA on Sat May 3 22:13:32 2008
Categories: Homo sapiens | Protein complex | Bell, J I. | Callaghan, C A.O. | Harkiolaki, M. | Hourigan, C S. | Jones, E Y. | Peterson, N A. | Allo-ligand | Antigen/peptide complex | Ebv | Glycoprotein | Hla | Hla-b3501 | Human | Immune response | Immunoglobulin domain | Major histocompatibility antigen | Membrane | Mhc | Mhc i | Polymorphism | Pyrrolidone carboxylic acid | Transmembrane