beta-Galactosidase

**Definition:** A group of enzymes that catalyzes the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-galactosides. Deficiency of beta-Galactosidase A1 may cause GANGLIOSIDOSIS, GM1.

**Tree numbers:** - D08.811.277.450.410.100

**Synonyms:** - beta-D-Galactosidase - beta-Galactosidases - Lactases - lac Z Protein