HBVsAg adw Mutant M-133-H protein.Recombinant HBVsAg adw antigen was mutated by replacing the Methionine residue at position 133 with Histidine.HBsAg is the surface antigen of the Hepatitis-B-Virus(HBV). The capsid of a virus has different surface proteinsfrom the rest of the virus. The antigen is a protein thatbinds specifically on one of these surface proteins. It iscommonly referred to as the Australian Antigen, 50 ug