Figure 1.

2.6 Å structure of the heterotetrameric ParD-ParE complex of C. crescentus. The ParE toxin is rendered in blue and the ParD antitoxin in red. The N-terminal ParD ribbon-helix-helix DNA binding motif (RHH) is labeled. The 4 secondary structural elements (®1, α1, α2, α3) of ParD are labeled in red on both monomers.