The 13q14.2 region partially overlaps with the most commonly deleted region in B-cell chronic lymphocytic leukemia (B-CLL)34–36 and contains RB1, KCNRG, TRIM13, DLEU1/2, MIR16-1, and MIR15A genes. Here, DLEU1 is linked to B-cell chronic lymphocytic leukemia.