A semi-invariant Vα10+ T cell antigen receptor defines a population of natural killer T cells with distinct glycolipid antigen–recognition properties

Type I natural killer T cells are characterized by an invariant V α 14-J α 18 T cell antigen receptor α-chain. Godfrey and colleagues describe a population of CD1d-restricted natural killer T cells that express a previously unidentified canonical V α 10-J α 50 α-chain. Type I natural killer T cells...

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Veröffentlicht in:Nature immunology 2011-06, Vol.12 (7), p.616-623
Hauptverfasser: Uldrich, Adam P, Patel, Onisha, Cameron, Garth, Pellicci, Daniel G, Day, E Bridie, Sullivan, Lucy C, Kyparissoudis, Konstantinos, Kjer-Nielsen, Lars, Vivian, Julian P, Cao, Benjamin, Brooks, Andrew G, Williams, Spencer J, Illarionov, Petr, Besra, Gurdyal S, Turner, Stephen J, Porcelli, Steven A, McCluskey, James, Smyth, Mark J, Rossjohn, Jamie, Godfrey, Dale I
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container_end_page 623
container_issue 7
container_start_page 616
container_title Nature immunology
container_volume 12
creator Uldrich, Adam P
Patel, Onisha
Cameron, Garth
Pellicci, Daniel G
Day, E Bridie
Sullivan, Lucy C
Kyparissoudis, Konstantinos
Kjer-Nielsen, Lars
Vivian, Julian P
Cao, Benjamin
Brooks, Andrew G
Williams, Spencer J
Illarionov, Petr
Besra, Gurdyal S
Turner, Stephen J
Porcelli, Steven A
McCluskey, James
Smyth, Mark J
Rossjohn, Jamie
Godfrey, Dale I
description Type I natural killer T cells are characterized by an invariant V α 14-J α 18 T cell antigen receptor α-chain. Godfrey and colleagues describe a population of CD1d-restricted natural killer T cells that express a previously unidentified canonical V α 10-J α 50 α-chain. Type I natural killer T cells (NKT cells) are characterized by an invariant variable region 14–joining region 18 (V α 14-J α 18) T cell antigen receptor (TCR) α-chain and recognition of the glycolipid α-galactosylceramide (α-GalCer) restricted to the antigen-presenting molecule CD1d. Here we describe a population of α-GalCer-reactive NKT cells that expressed a canonical V α 10-J α 50 TCR α-chain, which showed a preference for α-glucosylceramide (α-GlcCer) and bacterial α-glucuronic acid–containing glycolipid antigens. Structurally, despite very limited TCRα sequence identity, the V α 10 TCR–CD1d–α-GlcCer complex had a docking mode similar to that of type I TCR–CD1d–α-GalCer complexes, although differences at the antigen-binding interface accounted for the altered antigen specificity. Our findings provide new insight into the structural basis and evolution of glycolipid antigen recognition and have notable implications for the scope and immunological role of glycolipid-specific T cell responses.
doi_str_mv 10.1038/ni.2051
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subjects 631/250/1619/554/383
631/535
Adjuvants, Immunologic - pharmacology
Amino Acid Sequence
Animals
Antigens, Bacterial - immunology
Antigens, CD1d - immunology
Biomedical and Life Sciences
Biomedicine
Cell Line
Galactosylceramides - immunology
Galactosylceramides - pharmacology
Glucuronates - immunology
Humans
Immunology
Infectious Diseases
Mice
Mice, Mutant Strains
Molecular Sequence Data
Natural Killer T-Cells - immunology
Receptors, Antigen, T-Cell, alpha-beta - genetics
Receptors, Antigen, T-Cell, alpha-beta - immunology
title A semi-invariant Vα10+ T cell antigen receptor defines a population of natural killer T cells with distinct glycolipid antigen–recognition properties
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