Hepatitis B Surface Antigen ayw 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 full length is a 31kDa proteincloned from HBV 320 genome and fused to 6xHis Tag. Source Escherichia Coli. Physical Appearance Sterile Filtered clear solution. Formulation HBsAg ayw solution containing 7.5 mM phosphate buffer pH-7.2, 75 mM NaCI, 50% glycerol. Stability HBsAg Should be stored at 4°C between 3-4 weeks and for future use should be stored below -18°C. Purity Greater than 90.0% as determined by SDS-PAGE. Applications WB, ELISA, Lateral flow. 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. >