Abstract：
:The T-cell receptor has been studied intensely over the past 10 years in an effort to understand the molecular basis for major histocompatibility complex (MHC) restricted antigen recognition. The use of anti-receptor monoclonal antibodies to isolate and characterize the receptor from human and murine T-cell clones has shown that the protein consists of two disulphide-linked glycopeptides, alpha and beta, distinct from known immunoglobulin light and heavy chains. Like immunoglobulin light and heavy chains, however, both the alpha- and beta-chains are composed of variable and constant regions. Molecular cloning has revealed that the beta-chain is evolutionarily related to immunoglobulins, and is encoded in separate V (variable), D (diversity), J (joining) and C (constant) segments that are rearranged in T cells to produce a functional gene. We report here cDNA clones encoding the alpha-chain of the receptor of the human T-cell leukaemia line HPB-MLT. Using these cDNA probes, we find that expression of alpha-chain mRNA and rearrangement of an alpha-chain V-gene segment occur only in T cells. The protein sequence predicted by these cDNAs is homologous to T-cell receptor beta-chains and to immunoglobulin heavy and light chains, particularly in the V and J segments.
journal_name
Naturejournal_title
Natureauthors
Sim GK,Yagüe J,Nelson J,Marrack P,Palmer E,Augustin A,Kappler Jdoi
10.1038/312771a0subject
Has Abstractpub_date
1984-12-20 00:00:00pages
771-5issue
5996eissn
0028-0836issn
1476-4687journal_volume
312pub_type
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