Moreover, for each patient, we found that the CLL cells at SC2 had significantly higher levels of BCL2L1 and BCL-XL protein than the CLL cells at SC1 (p = 0.009 and p = 0.01, respectively) (Fig. 1E–G, Supplementary Table S2). The gene discussed is BCL2L1; the disease is B-cell chronic lymphocytic leukemia.