Genes involved in pathways of apoptosis/survival and reported in association with mastocytosis, such as the BCL2 member myeloid cell leukemia 1 (MCL1) and the pro-apoptotic BCL-2 interacting mediator of cell death (BCL2L11, also known as BIM), were among other differentially expressed genes with fold change >1.2 or <-1.2, and with FDR<0.05, in the comparison of HMC-1.3 versus HMC-1.2 cells (Supplementary Figure 3A). The gene discussed is BCL2; the disease is mastocytosis.