Figure 7From: A putative RNA-interference-based immune system in prokaryotes: computational analysis of the predicted enzymatic machinery, functional analogies with eukaryotic RNAi, and hypothetical mechanisms of actionFolding free energy distributions for the putative psiRNA precursors. (a) GC-rich psiRNA precursors compared to the corresponding shuffled sequences and miRNAs (b) AT-rich psiRNA precursors compared to the corresponding shuffled sequences and mRNAs. The X-axis: folding energy.Back to article page