FIG. 7.

The crystal structures of DsbC (PDB:1EEJ) (A) and DsbG (PDB:1V58) (B). DsbC and DsbG are V-shaped homodimers; each arm is a monomer containing an N-terminal dimerization domain and a C-terminal thioredoxin domain. The two domains are connected by a linker helix. The yellow spheres represent the sulfurs of active-site cysteines. The dimer form of DsbG was generated by applying crystallographic symmetry (85). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article at www.liebertonline.com/ars).