The above‐described observations are reminiscent of reported germline TRB expression from the hypomethylated TRB locus in human B‐cell non‐Hodgkin's lymphoma cell lines [19] and precursor type acute B lymphocytic leukaemia (B‐ALL) [20] arising from incompletely committed B cell precursors. This evidence concerns the gene THRB and acute lymphoblastic leukemia.