The X-Gal Staining Kit allows to visualize Beta-gal expression through hydrolysis of the X-Gal (5-bromo-4-chloro-3-indoyl-beta-D-Galactopyranoside) substrate yielding blue precipitates. LacZ is one of the most frequently reporter gene used in transfection experiments. The LacZ encoded protein (beta-galactosidase, beta-Gal), is very stable, resistant to proteolytic degradation and easily tested. *Convenient for all LacZ transfection assays *Suitable for cultured cells and tissues *Complete kit provided with substrate and buffers *Economical