Look up: proenzyme

1. proenzyme
   [n] - any of a group of compounds that are inactive precursors of enzymes and require some change (such as the hydrolysis of a fragment that masks an active enzyme) to become active
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. proenzyme
   Inactive form of an enzyme which can then be converted to the active form,usually by excision of a polypeptide,e.g.trypsinogen is the zymogen of trypsin. Category: Medicine
   Found on http://www.mijnwoordenboek.nl/definition
   
   
3. proenzyme
   <biochemistry> A precursor of an enzyme that does not have full (or any) function until an inhibitory sequence has been removed. ... This usually requires hydrolysis or limited {proteolysis of an inhibiting fragment that masks an active grouping) to render it active. ... Examples include pepsi...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
4. proenzyme
   (pro-en´zīm) zymogen; an inactive precursor of an enzyme.
   Found on http://www.encyclo.co.uk/local/21001
   
   
5. proenzyme
   proenzyme The inactive form of an enzyme found within a cell, which, upon leaving the cell, is converted into the active form; such as, pepsinogen, which is converted to pepsin.
   Found on http://www.wordinfo.info/words/index/inf
   
   
6. proenzyme
   Type: Term Pronunciation: prō-en′zīm Definitions: 1. The precursor of an enzyme, requiring some change (usually the hydrolysis of an inhibiting fragment that masks an active grouping) to render it active; pepsinogen, trypsinogen, profibrolysin. Synonyms: zymogen
   Found on http://www.medilexicon.com/medicaldictio