Process for immune defect and chromosomal translocation during early thymocyte development lacking ATM

Abstract excerpt

Immune defect in ataxia telangiectasia patients has been attributed to either the failure of V(D)J recombination or class-switch recombination, and the chromosomal translocation in their lymphoma often involves the TCR gene. The ATM-deficient mouse exhibits fewer CD4 and CD8 single-positive T cells because of a failure to develop from the CD4(+)CD8(+) double-positive phase to the single-positive phase. Although...

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