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Western blot of expressed proteins using anti-HCV+ (A) and anti-HBsAg+ (B) sera as detecting antibodies. M: protein molecular mass standard; lane 1: recombinant vector protein W; lane 2: chimeric protein I3S, lane 3: L3C1-I2E-L1C2-L2E; lane 4: L3C1-I2E-L1C2-L2E-I3S.
