C1QBP and melanoma: In order to identify the role of p32 in melanoma, we evaluated the expression levels of p32 in three different human melanoma SK-MEL-2, SK-MEL-28, and A375 cell lines through immunofluorescence (Supplementary Fig. 1) and further validated with western blot analysis (Supplementary Fig. 2A) and measuring transcript levels (Supplementary Fig. 2B) of p32 in these cells.