Anti-MN1 antibodies are used in the immunodetection of the protein MN1 proto-oncogene, transcriptional regulator. In humans, the canonical protein has a reported length of 1320 amino acid residues and a mass of 136 kDa. Its subcellular localization is in the nucleus. It is found to be widely expressed in fetal and adult tissues. MN1 is reported to be a transcriptional activator, which specifically regulates expression of TBX22 in the posterior region of the developing palate. Synonyms for this target antigen include MGCR, MGCR1, MGCR1-PEN, dJ353E16.2, transcriptional activator MN1, and CEBALID.