Abstract
The increase in population-related and environmental issues has emphasized the need for more efficient and sustainable production strategies for foods and chemicals. Carbohydrates are macronutrients sourced from crops and undergone transformation into various products ranging from foods to chemicals. Continuous efforts have led to the identification of a promising hybrid system that couples the electrochemical reduction of CO2 to intermediates containing one to three carbons (C1–3) with the transformation of the intermediates using engineered microorganisms into valuable products. Here we use yeast to transform C1–3 substrates into glucose and structurally tailored glucose derivatives, such as the sugar alcohol myo-inositol, the amino monosaccharide glucosamine, the disaccharide sucrose and the polysaccharide starch. By metabolic rewiring and mitigation of glucose repression, the titre of glucose and sucrose reached dozens of grams per litre. These results provide directions for microbial sugar-derived foods and chemicals production from renewable reduced CO2-based feedstocks.
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Acknowledgements
This work was financially supported by the National Key Research and Development Program of China (grant no. 2020YFA0907800 to T.Y.), the National Natural Science Foundation of China (grant no. 32071416 to T.Y. and 22308369 to W.C.), the Shenzhen Institute of Synthetic Biology Scientific Research Program (grant no. JCHZ20200003 to T.Y.), Shenzhen Key Laboratory for the Intelligent Microbial Manufacturing of Medicines (grant no. ZDSYS20210623091810032 to T.Y.), Key-Area Research and Development Program of Guangdong Province (grant no. 2022B1111080005 to T.Y.), the Strategic Priority Research Program of the Chinese Academy of Sciences (grant no. XDB0480000 to T.Y.), the National Key Research and Development Program of China (grant no. 2021YFA0911000 to T.Y.), CAS Project for Young Scientists in Basic Research (YSBR-051 to J.Z.), the China Postdoctoral Science Foundation (grant no. 2020M682973 to S.G.) and Guangdong Basic and Applied Basic Research Foundation (grant no. 2020A1515110927 to S.G.). We acknowledge the related fundings supported by China Merchants Research Institute of Advanced Technology Company Limited and China BlueChemical Ltd. We acknowledge the Shenzhen Infrastructure for Synthetic Biology for instrument support and technical assistance with plasmid construction. We thank X. Zhang and L. Xia for critical discussion, and the SIAT Mass Spectrometry Infrastructure for assistance with metabolite analysis.
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T.Y. and J.D.K. conceived this study. H.T., L.W. and S.G. designed and performed most of the experiments, analysed the data and drafted the manuscript. W.M., X.W. and J.S. assisted with the experiments and products detection. W.C. assisted with data analysis and interpretation. M.W., Q.Z., X.L. and J.Z. contributed to the manuscript revision. T.Y., J.D.K. and M.H. revised the manuscript. All authors revised and approved the manuscript.
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J.D.K. has a financial interest in Amyris, Lygos, Demetrix, Napigen, Maple Bio, Apertor Labs, Zero Acre Farms, Berkeley Yeast and Ansa Biotechnology. X.L. has a financial interest in Demetrix and Synceres. All other authors declare no competing interests.
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Tang, H., Wu, L., Guo, S. et al. Metabolic engineering of yeast for the production of carbohydrate-derived foods and chemicals from C1–3 molecules. Nat Catal 7, 21–34 (2024). https://doi.org/10.1038/s41929-023-01063-7
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DOI: https://doi.org/10.1038/s41929-023-01063-7