ID 3.4.21.3 DE metridin. AN Metridium proteinase A. AN sea anemone protease A. CA Preferential cleavage: Tyr-|-Xaa, Phe-|-Xaa, Leu-|-Xaa. Little action on CA Trp-|-Xaa. CC -!- Digestive enzyme from the sea anemone Metridium senile. //