Publication Date:
1988-08-26
Description:
The rearrangement of T cell antigen receptor beta- and gamma-chain gene segments was studied in transgenic mice that bear a functional beta-chain gene. Virtually all CD3-positive T cells derived from transgenic mice express beta chains containing the transgene-encoded V beta 8.2 variable region on their surfaces and do not express endogenous beta-chain variable regions. Expression of endogenous V beta genes is inhibited at the level of somatic recombination during thymic ontogeny. Furthermore, rearrangements of the TCR gamma-chain genes are also markedly inhibited in these transgenic animals. Hence expression of the TCR beta transgene has led to allelic exclusion of alpha beta receptors and isotypic exclusion of gamma delta T cell receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fenton, R G -- Marrack, P -- Kappler, J W -- Kanagawa, O -- Seidman, J G -- New York, N.Y. -- Science. 1988 Aug 26;241(4869):1089-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2970670" target="_blank"〉PubMed〈/a〉
Keywords:
Alleles
;
Animals
;
Antibodies, Monoclonal
;
Bacteriophage lambda/genetics
;
Cloning, Molecular
;
DNA, Recombinant
;
Enhancer Elements, Genetic
;
Gene Expression Regulation
;
Genes, Immunoglobulin
;
Immunoassay
;
Immunoglobulin Heavy Chains/genetics
;
Liver/analysis
;
Mice
;
Mice, Transgenic
;
Ovalbumin/immunology
;
Receptors, Antigen, T-Cell/*genetics
;
Recombination, Genetic
;
T-Lymphocytes/metabolism
;
Thymus Gland/analysis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink