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1lp9

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[[Image:1lp9.gif|left|200px]]
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{{Seed}}
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{{STRUCTURE_1lp9| PDB=1lp9 | SCENE= }}
{{STRUCTURE_1lp9| PDB=1lp9 | SCENE= }}
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'''Xenoreactive complex AHIII 12.2 TCR bound to p1049/HLA-A2.1'''
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===Xenoreactive complex AHIII 12.2 TCR bound to p1049/HLA-A2.1===
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==Overview==
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T cell receptors (TCR) adopt a similar orientation when binding with major histocompatibility complex (MHC) molecules, yet the biological mechanism that generates this similar TCR orientation remains obscure. We show here the cocrystallographic structure of a mouse TCR bound to a human MHC molecule not seen by the TCR during thymic development. The orientation of this xenoreactive murine TCR atop human MHC deviates from the typical orientation more than any previously determined TCR/MHC structure. This unique orientation is solely due to the placement of the TCR Valpha domain on the MHC. In light of new information provided by this structure, we have reanalyzed the existing TCR/MHC cocrystal structures and discovered unique features of TCR Valpha domain position on class I MHC that correlate with CD8 dependence. Finally, we propose that the orientation seen in TCR recognition of MHC is a consequence of selection during T cell development.
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The line below this paragraph, {{ABSTRACT_PUBMED_14563323}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 14563323 is the PubMed ID number.
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{{ABSTRACT_PUBMED_14563323}}
==Disease==
==Disease==
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[[Category: Class i mhc:tcr co-crystal]]
[[Category: Class i mhc:tcr co-crystal]]
[[Category: Immunoregulatory complex]]
[[Category: Immunoregulatory complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:08:34 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 21:42:24 2008''

Revision as of 18:42, 2 July 2008

Image:1lp9.png

Template:STRUCTURE 1lp9

Contents

Xenoreactive complex AHIII 12.2 TCR bound to p1049/HLA-A2.1

Template:ABSTRACT PUBMED 14563323

Disease

Known disease associated with this structure: Hypoproteinemia, hypercatabolic OMIM:[109700]

About this Structure

1LP9 is a Protein complex structure of sequences from Homo sapiens and Mus musculus. Full crystallographic information is available from OCA.

Reference

A correlation between TCR Valpha docking on MHC and CD8 dependence: implications for T cell selection., Buslepp J, Wang H, Biddison WE, Appella E, Collins EJ, Immunity. 2003 Oct;19(4):595-606. PMID:14563323

Page seeded by OCA on Wed Jul 2 21:42:24 2008

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