Anti-VIRMA antibodies are used in the immunodetection of the protein vir like m6A methyltransferase associated. In humans, the canonical protein has a reported length of 1812 amino acid residues and a mass of 202 kDa. Its subcellular localization is in the nucleus and cytoplasm. Alternative splicing is reported to yield 4 different isoforms for this protein. A member of a the Vir protein family, VIRMA is reported to be an associated component of the WMM complex, a complex that mediates N6-methyladenosine (m6A) methylation of RNAs, a modification that plays a role in the efficiency of mRNA splicing and RNA processing. Synonyms for this target antigen include MSTP054, fSAP121, protein virilizer homolog, functional spliceosome-associated protein 121, virilizer homolog, and KIAA1429.