S-adenosyl-L-methionine-dependent methyltransferase that mediates mRNA cap1 2'-O-ribose methylation to the 5'-cap structure of mRNAs. Methylates the ribose of the first nucleotide of a m(7)GpppG-capped mRNA and small nuclear RNA (snRNA) to produce m(7)GpppRm (cap1). Displays a preference for cap0 transcripts. Cap1 modification is linked to higher levels of translation. May be involved in the interferon response pathway. [UniProt]
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Protein Aliases: Cap methyltransferase 1; Cap-specific mRNA (nucleoside-2'-O-)-methyltransferase 1; Cap1 2'O-ribose methyltransferase 1; FtsJ methyltransferase domain containing 2; FtsJ methyltransferase domain-containing protein 2; Interferon-stimulated gene 95 kDa protein; ISG95; MTr1; S-adenosyl-L-methionine-dependent methyltransferase FTSJD2
Gene Aliases: 1300018I05Rik; AI451264; CMTR1; FTSJD2; hMTr1; KIAA0082; mKIAA0082; MTR1