PPP4C and uveal melanoma: Except for mesothelioma (MESO) and uveal melanoma (UVM), which lacked normal tissue data, PPP4C transcripts were significantly increased in most (27/31) tumor types and decreased in acute myeloid leukemia (LAML), while no statistical difference was observed in kidney chromophobe (KICH), pheochromocytoma and paraganglioma (PCPG), or sarcoma (SARC) (Fig. S2a).