Scaffolded Antigens in Yeast Cell Particle Vaccines Provide Protection against Systemic Polyoma Virus Infection

Figure 2

The pGUL2-VP1-GFP expression vector showing the expression cassette and its induction by galactose-induced expression of Gal4p, augmented by overexpression from the GAL1 UAS-driven GAL4 gene inserted at TRP1 in the strain PAP1502 chromosome.