ArticleJournal of microbiology (Seoul, Korea)2022
Effects of tryptophan and phenylalanine on tryptophol production in Saccharomyces cerevisiae revealed by transcriptomic and metabolomic analyses.
Article in Journal of microbiology (Seoul, Korea), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- An unfolded protein response-inducible protein (ULI1) mediates aromatic alcohols biosynthesis through reinforcing the Ehrlich pathway inFrontiers in microbiology · 2026Article
- Lysine restriction attenuates obesity-related anxiety-like behaviors via increasing Oscillibacter ruminantium-mediated tryptophol regulation.Microbiome · 2025Article
- Human intestinal fungus Clavispora lusitaniae attenuates colitis through Pyruvate decarboxylase-derived Indole-3-ethanol.Nature communications · 2025Article
- Coordinated synthesis of aromatic amino acid derived pigments in yeast via global transcriptional engineering.Microbial cell factories · 2025Article
- Engineering the L-tryptophan metabolism for efficient de novo biosynthesis of tryptophol in Saccharomyces cerevisiae.Biotechnology for biofuels and bioproducts · 2024Article
- A comprehensive review and comparison of L-tryptophan biosynthesis inFrontiers in bioengineering and biotechnology · 2023Review
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Authors and funding
12 authors at 3 institutions in 1 country.
Funding
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Abstract
Tryptophol (TOL) is a metabolic derivative of tryptophan (Trp) and shows pleiotropic effects in humans, plants and microbes. In this study, the effect of Trp and phenylalanine (Phe) on TOL production in Saccharomyces cerevisiae was determined, and a systematic interpretation of TOL accumulation was offered by transcriptomic and metabolomic analyses. Trp significantly promoted TOL production, but the output plateaued (231.02-266.31 mg/L) at Trp concentrations ≥ 0.6 g/L. In contrast, Phe reduced the stimulatory effect of Trp, which was strongly dependent on the Phe concentration. An integrated genomic, transcriptomic, and metabolomic analysis revealed that the effect of Trp and Phe on TOL production was mainly related to the transamination and decarboxylation of the Ehrlich pathway. Additionally, other genes, including thiamine regulon genes (this), the allantoin catabolic genes dal1, dal2, dal4, and the transcriptional activator gene aro80, may play important roles. These findings were partly supported by the fact that the thi4 gene was involved in TOL production, as shown by heterologous expression analysis. To the best of our knowledge, this novel biological function of thi4 in S. cerevisiae is reported here for the first time. Overall, our findings provide insights into the mechanism of TOL production, which will contribute to TOL production using metabolic engineering strategies.
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