Mad-1 is an alias for the gene, MAD1 mitotic arrest deficient-like 1 (yeast), in humans. Other names include: Mitotic spindle assembly checkpoint protein MAD1; Mitotic arrest deficient 1-like protein 1; MAD1-like protein 1; Mitotic checkpoint MAD1 protein homolog; hMAD1; Tax-binding protein 181; TP53I9; TXBP181. The encoded protein has an amino acid length of 718 and a mass of 83.1 kDa. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.