Team:Peking S/project/nonb

Non-Boolean Dynamics

Synthesizing a Modular Comparator Using Small Regulatory RNAs

Introduction Our ‘chemical wire’ toolbox is not only applicable to Boolean logic gene networks, but also amenable to non-Boolean population dynamics, for instance, the microbial population density balancer mentioned above. In such a dynamical network, we need to construct a comparator device that can integrate two environmental signals. We managed to fulfill the task with the simplest elements and types of interactions of gene regulation, i.e., the inducible promoters, mRNAs and regulatory small RNAs that silence them. We will demonstrate that simply by combining these three types of genetic components, a comparator module can be implemented and thus to work in population balancer system to verify the feasibility of our "chemical wire" toolkit for non-Boolean population dynamic.