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. 2021 Jul 6;13(2):e1681. doi: 10.1002/wrna.1681

TABLE 1.

Human m6A RNA methyltransferases and their identified methylated RNAs

m6A methyltransferase Validated RNA methylome
METTL3/METTL14 mRNAs, ncRNAs, microRNAs, circRNAs
METTL16 U6 snRNA, MAT2A pre‐mRNA
METTL5 18S rRNA
ZCCHC4 28S rRNA