SOURCE. From human leucocytes.
Lyophilized, salt-free, soluble powder.
Store 5°C. Stable one year.
Purity greater than 95% by SDS-PAGE.
16 - 18 Units per mg of protein.
1 unit will hydrolyze 1µM Meo-Suc-Al-Al-Pro-Val-pNA( EPC No. FH237) per minute at pH 7.5 and 25°C.
This product is prepared from whole blood shown to be non-reactive for HBsAG, anti-HCV, anti-HBc and negative for anti-HIV by FDA required tests.