As mitosis is the most defining stage of cell growth, it is often used in assays to monitor cells. Active Motif's chemiluminescent and colorimetric Mitotic Assay Kits are an easy way to test the effect of various treatments on cellular division. The kits utilize the same highly specific mitosis marker antibody (histone H3S28ph (Clone HTA28)) as the fluorescent Mitotic Index Assay, but offer an alternative colorimetric or chemiluminescent readout, enabling you to choose whichever assay format best suits for your needs.