(1mg/ml) 50mM Tris-HCl pH 8.5, 5mM DTT, 10mM BMe and 8M Urea.

Purified by proprietary chromatographic technique.

HBV HBe protein is >95% pure as determined by 10% PAGE (coomassie staining).

Immunoreactive with sera HBV-infected individuals.

HBV HBe protein although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.