The SKP1A/p19 Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can monitor SKP1A/p19 protein expression profile in cells. The kit can be used for measuring the relative amounts of SKP1A/p19 in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on SKP1A/p19.