摘要
THE duck hepatitis B virus as well as the human hepatitis B virus (HBV) belong to the hepadnaviruses. The viral DNA acts as a template for the synthesis, by DNA polymerase (DNAp). This enzyme is a DNA-dependent DNAp. It is a target enzyme of anti-hepatitis drugs too. Based on Shui Qin (SQ) anti-hepatitis B virus we used DHBV DNAp as a model in