Figure 3From: Live virus-free or die: coupling of antivirus immunity and programmed suicide or dormancy in prokaryotesThe immunity-dormancy/suicide coupling hypothesis: Route 1 – toxin action before immunity activation. The coupling between dormancy-suicide and immunity is specifically illustrated by the CRISPR-Cas system that is hypothesized to adapt by inserting a cognate spacer during a dormancy-like phase induced by the action of the toxin (typically, Cas2).Back to article page