PRMT7

Protein arginine methyltransferase 7 (PRMT7) is a protein that in humans is encoded by the PRMT7 gene. Arginine methylation is an apparently irreversible protein modification catalyzed by arginine methyltransferases, such as PRMT7, using S-adenosylmethionine (AdoMet) as the methyl donor. Arginine methylation is implicated in signal transduction, RNA transport, and RNA splicing.

PRMT7 was initially identified as a Type II protein lysine methyltransferase, indicating its role in the symmetric dimethylation of arginine residues. However, it was later reclassified as a Type III protein lysine methyltransferase, meaning it facilitates the mono-methylation of arginine residues. As of 2023, PRMT7 remains the sole member of the Type III PRMT category.