Fig. 3From: Immunogenicity of Leishmania-derived hepatitis B small surface antigen particles exposing highly conserved E2 epitope of hepatitis C virusOptiPrep density gradient centrifugation of recombinant particles. Seventeen fractions of 0.5 mL each were harvested from the top of the OptiPrep gradient after centrifugation. The aliquots of each fraction were analyzed by SDS-PAGE Coomassie blue staining (CB) and western-blot (WB) with anti-HBsAg Abs. The figure represents the results of fractions 8–10 where the highest amount of particles was detectedBack to article page