| Tissue plasminogen activator and, to a lesser degree, urokinase are serine proteases which convert plasminogen to plasmin. |
| The gelatinase activity was due to metalloproteinases and not cysteine or serine proteinases. |
| In the case of the serine proteases, they are synthesized as proenzymes, larger molecules that require modification before they become active. |
| All of the serine proteases and the zinc peptidases of pancreatic secretions are produced in the form of their respective proenzymes. |
| A protein resistant to heat and proteolysis that inhibits serine proteases was isolated from wheat leaf apoplasts. |
| Pancreatic trypsin is a member of the large and diverse serine peptidase family. |
