Figure 2From: Construction and immunogenicity of a DNA vaccine coexpressing GP3 and GP5 of genotype-I porcine reproductive and respiratory syndrome virusIdentification of expression of foreign proteins in vitro. The expression of GP3 and GP5 of PRRSV were confirmed by an indirect immunofluorescence assay (IFA) following incubation with anti-PRRSV GP3 or GP5 protein antibody in BHK-21 cells (A). RT-PCR was performed to detect expression of the GP3 and GP5 mRNAs (B).Back to article page