Anti-CMTR1 antibodies are used in the immunodetection of the protein cap methyltransferase 1. In humans, the canonical protein has a reported length of 835 amino acid residues and a mass of 95.3 kDa. Its subcellular localization is in the nucleus. It is notably widely expressed in many tissue types. CMTR1 is reported to be a S-adenosyl-L-methionine-dependent methyltransferase that mediates mRNA cap1 2'-O-ribose methylation to the 5'-cap structure of mRNAs. Synonyms for this target antigen include KIAA0082, MTr1, hMTr1, cap-specific mRNA (nucleoside-2'-O-)-methyltransferase 1, FtsJ methyltransferase domain containing 2, and FTSJD2. CMTR1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some CMTR1 antibodies may have been used in research and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.