Figure 4. Mutating ToxA or removing the C. elegans diphthamide modification inhibits ToxA-mediated lethality.
(A) Lifespan comparison of pmk-1(km25) mutants fed either wild-type ToxA, the catalytic mutant ToxAE575Δ, or vector control food. (B) Lifespan comparison between wild-type N2 and diphthamide synthesis mutants when fed ToxA following pmk-1 RNAi. All assays were started with L4 stage animals.