. "This group of beta-galactosidase enzymes belong to the glycosylhydrolase 42 family. The enzyme catalyses the hydrolysis of terminal, non-reducing terminal beta-D-galactosidase residues. " . "Glyco_hydro_42" . "Beta-galactosidase" . "Mian N, Bateman A" . "Family" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .