The Actin-_2 Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can monitor Actin-_2 protein expression profile in cells. The kit can be used for measuring the relative amounts of Actin-_2 in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on Actin-_2.