HBsAg ayw Mutant G-145-R Recombinant Shipping:Ice Packs Introduction 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. Description Recombinant HBsAg ayw antigen was mutated by replacing the Glycine residue at position 145 with Arginine. Source Pichia pastoris. Physical Appearance Sterile Filtered clear solution. Formulation Sterile Filtered solution containing 20mM Na2HPO4, 0.03M NaCl and 0.001% Thimerosal, pH-7.4. Purity Greater than 85.0% as determined by SDS-PAGE Coomassie staining. Stability HBsAg Should be stored at 4°C. Usage Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals. >