The human UBASH3B gene encodes for STS-1 phosphatase (suppressor of T-cell receptor signaling 1), the high expression of which has been correlated with the p190BCR-ABL1 form in acute lymphoblastic leukemia (ALL) patients’ samples [27], but is usually considered a BCR-ABL1 interactor [28,29]. This evidence concerns the gene ABL1 and acute lymphoblastic leukemia.