αβ T cell receptors that do not undergo major histocompatibility complex-specific thymic selection possess antibody-like recognition specificities.
αβ T cell receptors that do not undergo major histocompatibility complex-specific thymic selection possess antibody-like recognition specificities.
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不经历主要组织相容性复合体特异性胸腺选择的αβT细胞受体具有抗体样识别特异性。
DOI:
10.1016/j.immuni.2011.11.013
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发表时间:
2012-01-27
期刊:
影响因子:
32.4
通讯作者:
Singer A
中科院分区:
文献类型:
--
作者:
Tikhonova AN;Van Laethem F;Hanada K;Lu J;Pobezinsky LA;Hong C;Guinter TI;Jeurling SK;Bernhardt G;Park JH;Yang JC;Sun PD;Singer A
Major histocompatibility complex (MHC)-restriction is the cardinal feature of T cell antigen recognition and is thought to be intrinsic to αβ T cell receptor (TCR) structure because of germline-encoded residues which impose MHC specificity. Here, we analyzed TCRs from T cells that had not undergone MHC-specific thymic selection. Instead of recognizing peptide-MHC complexes, the two αβTCRs studied here resembled antibodies in recognizing glycosylation-dependent conformational epitopes on a native self-protein, CD155, and they did so with high affinity independently of MHC molecules. Ligand recognition was via the αβTCR combining site and involved the identical germline-encoded residues that have been thought to uniquely impose MHC specificity, demonstrating that these residues do not only promote MHC binding. Thus, this study demonstrates that, without MHC-specific thymic selection, αβTCRs can resemble antibodies in recognizing conformational epitopes on MHC-independent ligands.
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DOI:
10.1073/pnas.97.1.79
发表时间:
2000-01-04
影响因子:
11.1
作者:
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通讯作者:
Rossmann, MG
影响因子:
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作者:
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影响因子:
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作者:
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DOI:
10.1073/pnas.86.18.7159
发表时间:
1989-09-01
影响因子:
11.1
作者:
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通讯作者:
FINN, OJ