Fig. 2From: High serum levels of pregenomic RNA reflect frequently failing reverse transcription in hepatitis B virus particlesHBV RNA in serum was present in particles with similar properties as HBV virions. a) Quantification of HBV DNA, HBV RNA and HBsAg in Nycodenz gradient fractions from HBV positive serum. b) A parallel experiment in which the serum was treated with the detergent Tween-80 before fractionationBack to article page