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We have examined DNA rearrangements within a 120 kb cloned region of the human T cell receptor J delta-C delta/J alpha-C alpha locus. Three types of pattern emerge from an analysis of T cell lines and clones. Firstly, cells with two rearrangements within J delta-C delta; secondly, cells with one rearrangement within J delta-C delta and one or more J alpha rearrangements, and finally, cells with rearrangements within J alpha and consequential deletion of the delta locus. Further analysis by cloning of rearrangements within the J alpha locus show that, in addition to V alpha-J alpha joins, J alpha-J alpha aberrant recombinations occur and rearrangement data indicate that such events are frequent. A model is presented to account for such recombinations.


Journal article



Publication Date





1661 - 1668


Amino Acid Sequence, Base Sequence, Cell Line, Genes, Humans, Leukemia, Molecular Sequence Data, Receptors, Antigen, T-Cell, Receptors, Antigen, T-Cell, alpha-beta, Receptors, Antigen, T-Cell, gamma-delta, Recombination, Genetic, T-Lymphocytes, Tumor Cells, Cultured