Engineering of Synthetic, Stress-responsive Yeast Promoters
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Advances in synthetic biology and our understanding of the rules of promoter architecture have led to the development of diverse synthetic constitutive and inducible promoters in eukaryotes and prokaryotes. However, the design of promoters inducible by specific endogenous or environmental conditions is still rarely undertaken. In this study, we engineered and characterized a set of strong, synthetic promoters for budding yeast Saccharomyces cerevisiae that are inducible under acidic conditions (pH ≤ 3). Using available expression and transcription factor binding data, literature on transcriptional regulation, and known rules of promoter architecture we improved the low-pH performance of the YGP1 promoter by modifying transcription factor binding sites in its upstream activation sequence. The engineering strategy outlined for the YGP1 promoter was subsequently applied to create a response to low pH in the unrelated CCW14 promoter. We applied our best promoter variants to low-pH fermentations, enabling ten-fold increased production of lactic acid compared to titres obtained with the commonly used, native TEF1 promoter. Our findings outline and validate a general strategy to iteratively design and engineer synthetic yeast promoters inducible to environmental conditions or stresses of interest.
Advances in the dynamic control of metabolic pathways in .
Xiao C, Pan Y, Huang M Eng Microbiol. 2024; 3(4):100103.
PMID: 39628908 PMC: 11610979. DOI: 10.1016/j.engmic.2023.100103.
Improving the Z3EV promoter system to create the strongest yeast promoter.
Higuchi R, Fujita Y, Namba S, Moriya H FEMS Yeast Res. 2024; 24.
PMID: 39424601 PMC: 11523633. DOI: 10.1093/femsyr/foae032.
QPromoters: sequence based prediction of promoter strength in .
Haresh Liya D, Elanchezhian M, Pahari M, Anand N, Suresh S, Balaji N All Life. 2024; 16(1):2168304.
PMID: 39416423 PMC: 11478184. DOI: 10.1080/26895293.2023.2168304.
Synthetic Promoter Design and Functional Evaluation in Saccharomyces cerevisiae.
Xiao C, Liu X, Huang M Methods Mol Biol. 2024; 2844:97-108.
PMID: 39068334 DOI: 10.1007/978-1-0716-4063-0_6.
Zeng D, Yang Y, Wang Q, Zhang F, Zhang M, Liao S Appl Microbiol Biotechnol. 2024; 108(1):293.
PMID: 38592508 PMC: 11003901. DOI: 10.1007/s00253-024-13097-3.