the activity had a linear relationship to the logarithm of kallikrein concentrations from 5 x 10 ( -9 ) m to 5 x 10 ( -6 ) m and was blocked by immunopurified anti-prekallikrein f ( ab ' ) 2 rabbit antibody and soybean trypsin inhibitor .
C0022478
kallikrein
C0033024
prekallikrein