Among proteins involved in apoptosis, phosphatidylinositol transfer proteins beta (PITPβ) was highly expressed in ALL with t(12;21), while the casein kinase 2 alpha (CK2α) protein was weakly expressed in this group of patients (p < 0.001 and p < 0.01, respectively). Here, CSNK2A2 is linked to acute lymphoblastic leukemia.