Hepatitis B BV 二十面体核衣壳 小表面蛋白 icosahedral core (C) Small surface protein(S) P表面蛋白 Medium surface protein (S Pre S2) 大表面蛋白 Large surface protein (S +PreS2 +PreS1) DNA Polyme 聚合酶 Hepatitis B Dane virus (2002 James A PerkinsHepatitis B (HBV) Dane