Engineering ergothioneine production in Yarrowia lipolytica. 2022

Steven A van der Hoek, and Matej Rusnák, and Irene Hjorth Jacobsen, and José L Martínez, and Douglas B Kell, and Irina Borodina
The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark.

Ergothioneine is a naturally occurring antioxidant that has shown potential in ameliorating neurodegenerative and cardiovascular diseases. In this study, we investigated the potential of the Crabtree-negative, oleaginous yeast Yarrowia lipolytica as an alternative host for ergothioneine production. We expressed the biosynthetic enzymes EGT1 from Neurospora crassa and EGT2 from Claviceps purpurea to obtain 158 mg·L-1 of ergothioneine in small-scale cultivation, with an additional copy of each gene improving the titer to 205 mg·L-1 . The effect of phosphate limitation on ergothioneine production was studied, and finally, a phosphate-limited fed-batch fermentation in 1 L bioreactors yielded 1.63 ± 0.04 g·L-1 ergothioneine in 220 h, corresponding to an overall volumetric productivity of 7.41 mg·L-1 ·h-1 , showing that Y. lipolytica is a promising host for ergothioneine production.

UI MeSH Term Description Entries
D010710 Phosphates Inorganic salts of phosphoric acid. Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic
D004880 Ergothioneine A naturally occurring metabolite of HISTIDINE that has antioxidant properties. Thioneine,2-Thiol-L-histidine-betaine,2 Thiol L histidine betaine
D005285 Fermentation Anaerobic degradation of GLUCOSE or other organic nutrients to gain energy in the form of ATP. End products vary depending on organisms, substrates, and enzymatic pathways. Common fermentation products include ETHANOL and LACTIC ACID. Fermentations
D060847 Metabolic Engineering Methods and techniques used to genetically modify cells' biosynthetic product output and develop conditions for growing the cells as BIOREACTORS. Engineering, Metabolic
D019149 Bioreactors Tools or devices for generating products using the synthetic or chemical conversion capacity of a biological system. They can be classical fermentors, cell culture perfusion systems, or enzyme bioreactors. For production of proteins or enzymes, recombinant microorganisms such as bacteria, mammalian cells, or insect or plant cells are usually chosen. Fermentors,Bioreactor,Fermentor
D025062 Yarrowia A genus of ascomycetous yeast in the family Dipodascaceae, order SACCHAROMYCETALES. Yarrowia lipolytica,Yarrowias

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