ID 3.4.19.7 DE N-formylmethionyl-peptidase. AN (fMet)-releasing enzyme. CA Release of an N-terminal, formyl-methionyl residue from a polypeptide. CC -!- Highly specific for N-formylmethionyl-peptides. CC -!- Will not cleave methionyl peptides or N-formyl derivatives of amino CC acids other than methionine. CC -!- Isolated from liver. CC -!- Inhibited by heavy metals and activated by chloride. //