cathepsin b ( ec 3.4.22.1 ) from bovine spleen and the analogous enzyme from rat liver were investigated at 25 degrees c at i0.1 in acidic media by kinetic study of ( a ) the reactions of their catalytic-site thiol groups towards the two-protonic-state reactivity probe 2,2'-dipyridyl disulphide and ( b ) their catalysis of the hydrolysis of n-alpha-benzyloxycarbonyl-l-arginyl-l-arginine 2-naphthylamide .
C0699919
cathepsin b
C0020291
hydrolysis