To test whether GRK3 expression correlates with the expression of NE markers as well, we analyzed the CCLE cancer cell lines with measurable CHGA or CHGB expression (log2 transformed expression >4) and found that GRK3 expression positively correlates with CHGA (r = 0.41, P < 0.00001) and CHGB expressions (r = 0.24, P < 0.00001) (Figure 5D). Here, CHGB is linked to cancer.