3.4.22.10	preferential cleavage with hydrophobic residues at P2, P1 and P1'	-	-	
3.4.22.10	preferential cleavage with hydrophobic residues at P2, P1 and P1'	catalytic residue Cys192	667311	
3.4.22.10	preferential cleavage with hydrophobic residues at P2, P1 and P1'	the catalytic residue is His195 forming an ion pair with the single Cys47 residue	668772