Preproenzyme

A '''preproenzyme''' is an enzyme with two additional characteristics: "pre" refers to a signal sequence (signal peptide) which directs the enzyme to a specific organelle or subcellular localization; "pro" indicates that the enzyme is present in an inactive form and requires modification (e.g. cleavage) for activation.<ref>{{cite journal |pmid=9642203|pmc=107305|title=Secretion of elastinolytic enzymes and their propeptides by Pseudomonas aeruginosa|vauthors=Braun P, de Groot A, Bitter W, Tommassen J |year=1988|journal=J. Bacteriol.|volume=180|issue=13|pages=3467–3469|doi=10.1128/JB.180.13.3467-3469.1998 }}</ref>

==See also== * Protein precursor * Zymogen

==References== {{Reflist}}

Category:Enzymes Category:Precursor proteins