Source : Pichia pastoris.
Recombinant HBsAg adw antigen was mutated by replacing the Glutamine residue at position 129 with Histidine.
HBsAg is the surface antigen of the Hepatitis-B-Virus (HBV). The capsid of a virus has different surface proteins from the rest of the virus. The antigen is a protein that binds specifically on one of these surface proteins. It is commonly referred to as the Australian Antigen.