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. The gene discussed is MIR15A; the disease is B-cell chronic lymphocytic leukemia.