The Caspase 9 (Phospho-Ser144) Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can monitor Caspase 9 (Phospho-Ser144) protein expression profile in cells. The kit can be used for measuring the relative amounts of Caspase 9 (Phospho-Ser144) in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on Caspase 9 (Phospho-Ser144). Range: > 5000 Cells. Sensitivity: >5000 cells