

X-α-Gal (Highly Pure) by Molecular Depot is a X-α-Gal, a chromogenic α-galactosidase substrate that yields a blue precipitate. Alpha-galactosidase removes a terminal galactose in the alpha configuration, an activity quite separate from the beta-galactosidase that X-Gal reports, and the two substrates differ only in the anomeric configuration of the sugar. It is used to detect α-galactosidase activity in histochemical staining and colony screening, in yeast two-hybrid reporter assays and in glycosidase research. Each unit contains 50 mg. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.