Fig. 1From: Regulation of porcine circovirus type 2-like particles expressed in baculovirus expression systemConstruction of pFa-2BS. The fragment with one BS and polh was amplified from AcMNPV by BS-F (AaaI) and BS-R (CpoI). pFastbachtb and the fragment were digested and then ligated. The resulting plasmid containing two BSs was named pFa-2BSBack to article page