automated analyses were used to determine the effect of retinol on the activity of the following proteolytic enzymes : ficin ( ec 3.4.4.12 ) , bromelain ( ec 3.4.4 . 24 ) , trypsin ( ec 3.4.4.4 . ) , chymotrypsin a ( ec 3.4.4.5 ) , papain ( ec 3.4.4.10 ) , clostridiopeptidase a ( ec 3.4.4.19 ) , pepsin ( ec 3.4.4.1 ) , cathepsin d ( ec 3.4.4 . 23 ) from rat-liver and rat-kidney lysosomes and the nonspecific proteolytic enzyme , pronase .
C0007427
cathepsin d
C0024369
lysosomes