GPSM1 and precursor B-cell acute lymphoblastic leukemia: In the Haferlach Leukemia dataset, the expression levels of GPSM1 in B-ALL, childhood B-ALL and Pro-B ALL were 5.09 (p = 7.08E-67), 5.051 (p = 6.33E-92) and 6.671 (p = 1.31E-40) fold higher than those in PBMCs (Figure 1C).