After identifying the palmitoylation motif of PD-L1 and PD-1, Yao et al. synthesized peptides that were derived from PD-L1 (MMDVKKCGIQDTNS-GFP) and PD-1 (Flag-AVICSRAARG-GFP), and these peptides exhibited a successful inhibitory effect that involved PD-1/PD-L1 palmitoylation and slowed tumor progression.297,298 Future studies are necessary to develop more selective PAT inhibitors. Here, CD274 is linked to neoplasm.