HBV M protein, Hepatitis B virus surface antigen, Hepatitis B surface antigen, HBV surface antigen, HBV-sAg, Hepatitis B virus M protein, Major surface protein
BALB/c mice were immunized by injection of HBV particles serotype ay, purified from HBsAg-positive patient blood sera. Splenocytes from immunized mice were then fused with the Sp2/0-Ag myeloma cell line.