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Revision as of 01:27, 20 August 2018
UBC iGEM 2018: Distributed Metabolic Pathway of Naringenin
Dividing metabolism amongst microbial communities has shown huge potential for the large-scale production of chemical products. Unfortunately, optimizing the population dynamics of the individual strain modules remains a challenge (Jones & Wang, 2018). Our goal is to improve the production of naringenin and its pharmaceutically significant derivatives, which have anti-cancer and anti-inflammatory properties, by distributing the synthesis of a naringenin derivative between two E. coli strains and optimizing their relative proportions in co-culture. One strain will produce naringenin from glucose and the second strain will create the naringenin derivative. We will regulate the ratio of the two strains using a biosensor and a toehold switch. This will couple cell growth with the concentration of naringenin, allowing the co-culture to self-optimize and increase naringenin production. Using our system, we will have demonstrated a novel way to optimize microbial polycultures for the synthesis of metabolically complex compounds.