The HNF4α Colorimetric Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can detect HNF4α protein expression profile in cells. The kit can be used for measuring the relative amounts of HNF4α in cultured cells as well as screening for the effects that variuos treatments, inhibitors (ie siRNA or chemicals), or activators have on HNF4α.