GAB2 and B-cell chronic lymphocytic leukemia: By further investigating the RPPA intensities of the antibody probes, we were able to determine through correlation comparison that eIF4G, SYK, RBM15, and GAB2 expression is higher in CLL than in healthy donor B-cells, whereas Annexin I and cleaved caspase 7 is lower in CLL compared to healthy donors (Figure 1B).