3.4.23.50	0.13	-	2-aminobenzoyl-Ala-Thr-His-Gln-Val-Tyr-Phe(NO2)-Val-Arg-Lys-Ala	pH 5.0, 25°C, 13000 Da C-terminally truncated enzyme form	646018	
3.4.23.50	0.8	-	Lys-Ala-Arg-Val-Tyr-Phe(NO2)-Glu-Ala-Nle-NH2	pH 4.5, 18200 Da enzyme form	646017	
3.4.23.50	1.37	-	2-aminobenzoyl-Ala-Thr-His-Gln-Val-Tyr-Phe(NO2)-Val-Arg-Lys-Ala	pH 5.0, 25°C, 18000 Da enzyme form	646018	
3.4.23.50	2.1	-	Lys-Ala-Arg-Val-Tyr-Phe(NO2)-Glu-Ala-Nle-NH2	pH 4.5, 11600 Da core domain	646017