the low mw proteinase inhibitor is protein in nature and is different , in terms of specificity for enzymes , mw and sensitivity to different physical or chemical treatments , from aprotinin , a low mw proteinase inhibitor ( 6500 mw ) of bovine origin , and from the soybean trypsin inhibitor , a relatively high mw proteinase inhibitor ( 21,500 mw ) .
C0033684
protein
C0003641
aprotinin