the amounts of lactase ( beta-d-galactosidase , ec 3.2.1.23 ) , sucrase ( sucrose alpha-d-glucohydrolase , ec 3.2.1.48 ) , maltase ( alpha-d-glucosidase , ec 3.2.1.20 ) microvillus aminopeptidase ( ec 3.4.11.2 ) and dipeptidyl peptidase iv ( ec 3.4.14.- ) in tangentially sectioned biopsies from jejunum were studied by quantitative immunoelectrophoresis and enzymic assays .
C0002272
maltase
C0017764
glucosidase