Anti-FOXM1 antibodies are used in the immunodetection of the protein forkhead box M1. In humans, the canonical protein has a reported length of 763 amino acid residues and a mass of 84.3 kDa. Its subcellular localization is in the nucleus. Up to 3 different isoforms have been reported for this protein. It is reported to be expressed in thymus, testis, small intestine, colon followed by ovary. FOXM1 is reported to be a transcription factor regulating the expression of cell cycle genes essential for DNA replication and mitosis. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include FOXM1A, FOXM1B, FOXM1C, HFH-11, HFH11, HNF-3, INS-1, and FKHL16. FOXM1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish and chimpanzee species.