Anti-RAMAC antibodies are used in the immunodetection of the protein RNA guanine-7 methyltransferase activating subunit. In humans, the canonical protein has a reported length of 118 amino acid residues and a mass of 14.4 kDa. Its subcellular localization is in the nucleus. It is notably widely expressed in many tissue types. A member of the RAM protein family, RAMAC is a regulatory subunit of the mRNA-capping methyltransferase RNMT:RAMAC complex that methylates the N7 position of the added guanosine to the 5'-cap structure of mRNAs. Synonyms for this target antigen include RNMT activating mRNA cap methyltransferase subunit, RNMT-activating mini protein, family with sequence similarity 103 member A1, protein FAM103A1, and RNA guanine-N7 methyltransferase activating subunit. RAMAC gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some RAMAC antibodies may have been used in research and have associated citations. Immunocytochemistry is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.