Figure 5.

Multiple alignments of distinct predicted antitoxin families containing ribbon-helix-helix (RHH) domains. A. RHH domain of COG1753 family. B. RHH domain in MJ1172 family. C. RHH domain in COG5304/COG3514. D. RHH domain fused to HEPN domain (paREP 1 subfamily). Designations are as in Figure 2.