VEGAS99 RTP SLOT These are proteins that activate transcription when they land on a gene switch and thereby express the gene that was expected to operate as a memory device, allowing cell fate decisions to be chosen and maintained. Engineered systems are the result of implementation of combinations of different control mechanisms. However, with the limited understanding of cellular networks and natural circuitry, implementation of more robust schemes with more precise control and feedback is hindered. The switch is turned on by heating the culture of bacteria and turned off by addition of IPTG.|Samsung Galaxy S20