Figure 3From: Production of FMDV virus-like particles by a SUMO fusion protein approach in Escherichia coliThe VP0-VP1-VP3 protein complexes form round VPLs in vitro. Negative-staining electron microscopy images of the purified VP0-VP1-VP3 proteins (A-C) and the His6-Smt3-VP0/His6-Smt3-VP1/His6-Smt3-VP3 ternary complexes (D). Scale bars (in black) are 50, 100 or 200 nm as indicated.Back to article page