The p42 MAPK Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can monitor p42 MAPK protein expression profile in cells. The kit can be used for measuring the relative amounts of p42 MAPK in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on p42 MAPK. Species Reactivity: human, mouse, rat. Range: > 5000 Cells. Sensitivity: >5000 cells