Protein arginine methyltransferase 1 (PRMT1) methylates SARS-CoV-2 nucleoprotein on two arginines (R95 and R177). This modification is required for its RNA binding capacity, since treatment with a type I PRMT inhibitor (MS023) or substitution of R95K or R177K inhibited interaction with the 5’-UTR of the SARS-CoV-2 genomic RNA. Pre-treatment of VeroE6 cells with MS023 significantly reduced SARS-CoV-2 replication (Cai et al, 2021).
Richard, S, Liang, C, Wang, Z, Yu, Z, Cai, T
protein-arginine omega-N asymmetric methyltransferase activity of PRMT1 [cytosol]
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