Gal Staining Set Application Optimized staining set detects bacterial β-Gal constructs (encoded by the lacZ gene) in transfected cells by making β-galactosidase enzyme activity visible; the product of the β-gal reaction can be seen by the naked eye or under a light microscope. It simplifies the histochemical staining of cells and tissue sections by forming a blue precipitate in the presence of the enzyme. Product Description Specificity: Bacterial β-galactosidase Stability: Stable at +2 to +8�C Contents Two specially formulated and stabilized components that (when combined) form a histochemical staining solution: X-Gal Iron Buffer