Beta galactosidase is one of the most widely used reporter enzymes in molecular biology. This stable enzyme exhibits a high turnover rate and can be used with substrates yielding both soluble and insoluble products making beta-galactosidase conjugates an excellent choice for ELISA, immunoblotting and immunocytochemical staining techniques. In addition, most tissues exhibit very low levels of endogenous enzyme activity. Rockland uses chromatographically purified Beta-galactosidase (E.coli) with activities in excess of 600 units per mg of enzyme (ONPG as a substrate). Rockland offers streptavidin and avidin conjugated to beta galactosidase. Please inquire for beta galactosidase conjugates to any other antibody or protein.