Selection of variable-joining region combinations in the α chain of the T cell receptor

Matthew E. Roth, Michael J. Lacy, Leslie Klis Mcneil, David M Kranz

Research output: Contribution to journalArticle

Abstract

Most T lymphocytes express an antigen-specific receptor composed of two subunits, α and β, each of which can exhibit structural variability. A complex selection process operates on T cells during development in the thymus such that cells expressing only particular αβ-receptors migrate to the periphery. The α-chain repertoire was dissected at different stages of the selection process by using the polymerase chain reaction (PCR) technique to amplify only those transcripts of a particular variable region gene (V 58). Sequences from these V58 cDNAs reveal the predominant expression of four joining (J) segments by T cells in the adult thymus, suggesting that molecular or cellular processes select particular V αJα combinations during development. T cells expressing one of these V58Jα chains appear to have been negatively selected at a later stage, since these transcripts were present in the spleen at approximately one-tenth the level in the thymus. Results also indicate that residues present at the VαJα junction may be important in an early selection process.

Original languageEnglish (US)
Pages (from-to)1354-1358
Number of pages5
JournalScience
Volume241
Issue number4871
DOIs
StatePublished - Jan 1 1988

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T-Cell Antigen Receptor
Thymus Gland
T-Lymphocytes
Antigen Receptors
Spleen
Complementary DNA
Polymerase Chain Reaction
Genes

ASJC Scopus subject areas

  • General

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Selection of variable-joining region combinations in the α chain of the T cell receptor. / Roth, Matthew E.; Lacy, Michael J.; Mcneil, Leslie Klis; Kranz, David M.

In: Science, Vol. 241, No. 4871, 01.01.1988, p. 1354-1358.

Research output: Contribution to journalArticle

Roth, Matthew E. ; Lacy, Michael J. ; Mcneil, Leslie Klis ; Kranz, David M. / Selection of variable-joining region combinations in the α chain of the T cell receptor. In: Science. 1988 ; Vol. 241, No. 4871. pp. 1354-1358.
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