Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

Human T cell clones and a cDNA probe specific for constant regions of the beta subunit of the antigen/major histocompatibility complex (MHC) receptor, TiC beta 1 and TiC beta 2, were employed to determine whether these genes were differentially used by functional classes of T lymphocytes. DNA from 10 interleukin-2-dependent T cell clones including class I and class II MHC-specific cytotoxic T lymphocytes (n = 6), T4+ inducer T lymphocytes (n = 2), and T8+ suppressor T lymphocytes (n = 2) showed rearrangement of the TiC beta 1 gene on Southern blot analysis with or without deletion of the other TiC beta 1 allele. In contrast, TiC beta 2 always remained in germline configuration. Moreover, the finding that one additional suppressor clone deleted both TiC beta 1 alleles, maintained a germline TiC beta 2 configuration, and yet actively transcribed TiC beta 2 message suggested that TiC beta 2 is not a pseudogene. Rather, it appeared to be used less frequently than the TiC beta 1 gene and in the absence of detectable DNA rearrangements. Together, these results demonstrate that the functional repertoire (or isotype) of a given subclass of T cells is not encoded within the Ti beta genes.

Type

Journal article

Journal

J Exp Med

Publication Date

01/09/1984

Volume

160

Pages

947 - 952

Keywords

Clone Cells, DNA, Genes, MHC Class II, Genetic Code, HLA Antigens, Humans, Immunoglobulin Allotypes, Immunoglobulin Constant Regions, Immunoglobulins, Interleukin-2, Receptors, Antigen, T-Cell, T-Lymphocytes