toxin-antitoxin complex A bacterial protein complex that neutralises its own toxin by complexing the toxin with the antitoxin. The antitoxin can be either a protein or an RNA. The neutralising toxin-antitoxin complex also acts as a transcriptional repressor of the toxin-antitoxin operon. An example is YoeB (P69348) in Escherichia coli in PMID:16109374 (inferred by direct evidence). GO:0110001 IntAct:EBI-10919614 IntAct:EBI-13949147 IntAct:EBI-13949218 IntAct:EBI-13949593 IntAct:EBI-13949715 IntAct:EBI-13949851 cellular_component kmv toxin-antitoxin system system