no cross-reactivity was observed either between contrapsin and antiserum specific for alpha-1-antitrypsin or between alpha-1-antitrypsin and antiserum specific for contrapsin . alpha-1-antitrypsin inhibited three serine proteases tested , i.e . porcine elastase , bovine trypsin , and chymotrypsin , whereas contrapsin inhibited only trypsin , but not the other two .
C0036734
serine proteases
C0041236
trypsin