3.4.21.B42	amidinophenylmethansulfonylfluorid	complete inhibition at 2.5 microM	
3.4.21.B42	Aprotinin	30% inhibition at 2.5 mM	
3.4.21.B42	benzamidine	40% inhibition at 2.5 mM	
3.4.21.B42	Phenylmethylsulfonylfluoride	20 mM