Figure 4From: Secreted production of assembled Norovirus virus-like particles from Pichia pastoris HBGA-saliva binding assay. HBGA-binding assay. Plates were coated with A-type saliva, and incubated with different concentrations of VLP (solid line) or culture media after VLPs purification (dashed line). Anti-NoV serum was used for VLP detection. Absorbance values are shown as the mean of six independent experiments.Back to article page