Protein arginine N-methyltransferase 9 (PRMT9)

Arginine methyltransferase that can both catalyze the formation of omega-N monomethylarginine (MMA) and symmetrical dimethylarginine (sDMA). Especially mediates the symmetrical dimethylation of SF3B2.

Involved in the regulation of alternative splicing of pre-mRNA (PubMed:25737013, PubMed:25979344). .