3.4.21.99 | hydrolyses arginyl bonds, preferably with Pro in the P2 position |
the enzyme from the ascidian -Prochordate- Halocynthia roretzi is localised in the sperm head, and released during sperm activation. A proline-rich region is involved in binding to the vitelline coat of the egg. Belongs in peptidase family S1, trypsin family |
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