“Proprotein convertases (PPCs) are a family of proteins that activate other proteins. Many proteins are inactive when they are first synthesized, because they c

“Proprotein convertases (PPCs) are a family of proteins that activate other proteins. Many proteins are inactive when they are first synthesized, because they contain chains of amino acids that block their activity. Proprotein convertases remove those chains and activate the protein” [1]. [1] https://en.wikipedia.org/wiki/Proprotein_convertase https://en.wikipedia.org/wiki/Proprotein_convertase