
Recombinant Hepatitis B Surface Antigen preS1 by ProSpec Bio is a recombinant antigen expressed in E. coli (119 aa, 12.6 kDa, >97% pure). Sizes: 10 µg (hbs-871), 50 µg (hbs-871-1), 1 mg (hbs-871-2). Available from MBP, a registered vendor at leading US research institutions.


