The Keratin 19 Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can monitor Keratin 19 protein expression profile in cells. The kit can be used for measuring the relative amounts of Keratin 19 in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on Keratin 19.