INCENP Mouse Monoclonal Antibody

In mammalian cells, 2 broad groups of centromere-interacting proteins have been described: constitutively binding centromere proteins and 'passenger, ' or transiently interacting, proteins (reviewed by Choo, 1997) . The constitutive proteins include CENPA (centromere protein A; MIM 117139), CENPB (MIM 117140), CENPC1 (MIM 117141), and CENPD (MIM 117142) . The term 'passenger proteins' encompasses a broad collection of proteins that localize to the centromere during specific stages of the cell cycle (Earnshaw and Mackay, 1994 [PubMed 8088460]) . These include CENPE (MIM 117143) ; MCAK (MIM 604538) ; KID (MIM 603213) ; cytoplasmic dynein (e.g., MIM 600112) ; CliPs (e.g., MIM 179838) ; and CENPF/mitosin (MIM 600236) . The inner centromere proteins (INCENPs) (Earnshaw and Cooke, 1991 [PubMed 1860899]), the initial members of the passenger protein group, display a broad localization along chromosomes in the early stages of mitosis but gradually become concentrated at centromeres as the cell cycle progresses into mid-metaphase. During telophase, the proteins are located within the midbody in the intercellular bridge, where they are discarded after cytokinesis