post-proline dipeptidyl aminopeptidase , in contrast to the endopeptidase post-proline cleaving enzyme [ 9,10 ] ( walter r. ( 1976 ) biochim . biophys . acta 422 , 138-158 , and koida , m. and walter , r. ( 1976 ) j. biol . chem . 251 , 7593-7599 ) exhibits no endopeptidase activity .
C0030946
endopeptidase
C0014442
enzyme