FIRRM and sarcoma: In searching the M6A2Target database (http://m6a2target.canceromics.org), C1orf112 is shown as one of the target gene of HNRNPA2B1. Further analysis of TCGA database revealed that the expression of HNRNPA2B1is strongly and positively correlated with that of C1orf112 in sarcoma (Fig. S5F).