Zheng S, Shuman S. Mutational analysis of vaccinia virus mRNA cap (guanine-N7) methyltransferase reveals essential contributions of the N-terminal peptide that closes over the active site. RNA. 2008 Nov;14(11):2297–304. PMID: 18799596; PMCID: PMC2578867.
Mutational analysis of vaccinia virus mRNA cap (guanine-N7) methyltransferase reveals essential contributions of the N-terminal peptide that closes over the active site