
Recombinant Hepatitis B Virus X by ProSpec Bio is a recombinant antigen expressed in E. coli (17 kDa, >95% pure). Sizes: 2 µg (hbv-273), 10 µg (hbv-273-1), 1 mg (hbv-273-2). Available from MBP, a registered vendor at leading US research institutions.


