... of activities, including endopeptidases,aminopeptidases, dipeptidyl peptidases and enzymes with both exo- and endopeptidase activity. Members of ... protozoa, plants and mammals. The proteins are typically lysosomal or secreted, and proteolytic cleavage of the propeptide is ... -terminal propeptide regions. The activation process of these enzymes includes the removal of propeptide regions, which serve a ...