“…Physiological knowledge of the pathways under investigation, choice of the right production organism, information from metabolic flux modelling and bioprocess development need to be considered and addressed in the design of the synthetic multifunctional DNA circuits to be delivered [74]. This can then be exploited for the improved production, up to fermenter scale, of protein therapeutics such as monoclonal antibodies, commodity chemicals such as vitamins or rare amino acids, valuable metabolites, biomolecules eliciting fragrances and flavors, rare natural (medicinal) compounds (such as artemisinin and taxol) or even biofuel production [74][75][76][77][78].…”