leupeptin and l-transepoxy-succinyl-leucyl-amido- ( 4-guanidino ) -butane ( e-64 ) , two peptide inhibitors of cysteine proteinases , inhibited the proteolysis of globin and caused the accumulation of undegraded erythrocyte cytoplasm in parasite food vacuoles , suggesting that a food vacuole cysteine proteinase is necessary for hemoglobin degradation .
C0597304
proteolysis
C2717970
cysteine proteinase