CMTR2 is a symbol for the gene, Cap methyltransferase 2, in humans. Other names include: nucleoside-2'-O-)-methyltransferase 2; Cap2 2'O-ribose methyltransferase 2; HMTr2; FtsJ methyltransferase domain-containing protein 1; Protein adrift homolog; Cap-specific mRNA; -methyltransferase 2 ; adrift homolog (Drosophila); AFT; FTSJD1. The encoded protein is an enzyme with an amino acid length of 770 and a mass of 88.1 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog.