This year our iGEM team established a transatlantic collaboration with the iGEM team 2016 from Lethbridge, Canada. Our joined attempt was to determine the evolutionary stability of kill switches from both, theoretical and experimental side. While we were contributing the theoretical modeling part, our colleagues in Canada worked on the experimental evidence of our drylab predictions. We worked on suitable experiment design for their hands-on part together. To help them out we had also the necessary genes for the MazF kill switch synthesized and shipped. Figure 1 shows