We observed that the ratio of GOLIM4‐L isoform was higher in the tumor samples compared with the control samples (Figure S1B, Supporting Information), consistent with the higher PSI observed in NPC tumors (Figure 1C), which were further validated in another independent collection of NPC (n = 20) and noncancerous (n = 19) samples (Figure 1E,F; Figure S1C, Supporting Information). Here, GOLIM4 is linked to nasopharyngeal carcinoma.