Beta-D-galactosidase https://www.creativebiomart.net/therapeutic-proteins/p/26/beta-d-galactosidase/ The product is a beta-D-galactosidase obtained from Aspergillus oryzae. The beta-D-galactosidase us a large monomeric multi-domain enzyme of 985 residues that presents a catalytic (alpha/beta)8-barrel domain.