TABLE 2.

Substrate specificity of native Sc-SP-1

Substrate	Activity
	unitsa
N-Succinyl-Ala-Ala-Pro-Phe-pNA	218
N-Methoxyl-Ala-Ala-Pro-Met-pNA	198
N-Succinyl-Ala-Ala-Pro-Leu-pNA	52
N-Benzoyl-Phe-Val-Arg-pNA	39
N-Succinyl-Gly-Gly-Arg-pNA	0
Nα-Benzoyl-l-arginine 4-NA	0
N-Succinyl-Gly-Phe-pNA	0
N-Benzoyl-Pro-Phe-Arg-pNA	0

^a One unit of protease activity was defined as micromoles of nitroaniline released per min under the assay conditions.