Anti-MEI1 antibodies are used in the immunodetection of the protein meiotic double-stranded break formation protein 1. In humans, the canonical protein has a reported length of 1274 amino acid residues and a mass of 141.2 kDa. Up to 7 different isoforms have been reported for this protein. It is reported to be highly expressed in the testis. MEI1 is reported to be required for normal meiotic chromosome synapsis. The MEI1 gene has been associated with the disease, Hydatidiform mole. Synonyms for this target antigen include meiosis defective 1, meiosis defective protein 1, meiosis inhibitor 1, spermatogenesis associated 38, and meiosis inhibitor protein 1. MEI1 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some MEI1 antibodies may have been used in research and have associated citations. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.