lactase (kluyveromyces lactis beta-galactosidase) enzyme. lactose digesting protein from yeast that is used to prepare

pdb3ob8 lactase galactosidase betagalactosidase kluyveromyces lactis galactose enzyme digestion food milk yeast processing lactose free lactosefree hydrolysis disaccharide glucose structure peptide protein amino acid molecule polypeptide polymer atoms science scientific disease health molecular model 3d rendering illustration