the explant contents of protein and two brush-border enzymes , microvillus aminopeptidase ( ec 3.4.11.2 ) and dipeptidyl peptidase iv ( ec 3.4.14.5 ) , were not significantly modified during culture compared with controls , but a moderate , continuous release of both protein and enzyme activities into the medium was observed .
C1318418
brush-border
C0026049
microvillus