... wfikkn_hu_2), the < /b> Kunitz domain of WFIKKNRP of the < /b> amphioxus Branchiostoma belcheri (WFIKKN_BRABE), and the < /b> Kunitz domains of bovine pancreatictrypsin inhibitor (bpt1_bovin), human bikunin (ambp _human_ 1, ... analyses The < /b> amino acid sequences of human WFIKKN protein(AAL18839), human WFIKKNRP protein (AAL77058),bovine pancreatic trypsin inhibitor (bpt1_bovin, P00974), human bikunin (ambp _human, P02760), human ... kallikrein, Gly in < /b> human plasmin, Gln in< /b> human thrombin, Pro in < /b> human lung tryptase), raising the< /b> possibility that the < /b> inability of WFIKKN-KU2 to inhibitthese proteases is partly due to the < /b> lack...