Table 1.

Potency results and n-terminal sequencing of two streptokinase preparations

Sample	Chromogenic substrate assay	Clot lysis assay	N -terminal sequence
Streptase®	97 ± 5%	101 ± 4%	I-A-G-P-E-W
Heberkinasa®	42 ± 5%	92.5 ± 2%	M-I-A-G-P-E