Figure 5From: PpiD is a player in the network of periplasmic chaperones in Escherichia coliThe PpiD and PpiDΔParv proteins exhibit chaperone activity in vitro. Thermal aggregation of citrate synthase (0.15 μM monomer) at 43°C in the presence of SurA (positive control), Chymotrypsinogen A (negative control), and the soluble PpiD and PpiDΔParv proteins was observed by light scattering at 500 nm.Back to article page