To explore whether p53EE can counteract oncogene‐induced tumorigenesis in a genetically more defined setting, we crossed p53EE animals with Eμ‐Myc mice which serve as a well‐characterized model of Burkitt‐like B‐cell lymphoma (Adams et al, 1985). The gene discussed is MYC; the disease is B-cell non-Hodgkin lymphoma.