RPL31 and neoplasm: Moreover, we identified four putative tumor-specific cryptic peptides from ZYG11A, RPL36A-HNRNPH2, CLIC1 and RPL31 that were decreasingly presented upon MAPKi in SK-Mel-28 wt but were unaffected in SK-Mel-28 dr cells (Figures 5B–D), indicating a direct link to MAPK signaling.