<enzyme> Precursor of EC 3.4.21.11,pancreatopeptidase ... Registry number: EC 3.4.21.- ... (26 Jun 1999) ... 
Type: Term Pronunciation: prō′ĕ-las′tās Definitions: 1. The precursor protein of elastase; formed in the pancreas (in vertebrates) and converted to elastase by the action of trypsin.