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Tyramine biosynthesis in Enterococcus durans is transcriptionally regulated by the extracellular pH and tyrosine concentration
Abstract
Summary: The microbial decarboxylation of some amino acids leads to the undesirable presence of biogenic amines in foods. One of the most abundant and frequent biogenic amines found in fermented foods is tyramine, which is produced by the decarboxylation of tyrosine. In the present work, transcriptional analysis of tyramine biosynthesis in Enterococcus durans IPLA655, a strain isolated from cheese, was studied. The gene coding for the tyrosine decarboxylase ( tdcA ) and that coding for the tyrosine‐tyramine antiporter ( tyrP ) form an operon transcribed from the promoter P tdcA , the expression of which is regulated by the extracellular pH and tyrosine concentration. Quantification of gene expression during the log phase of growth showed high concentrations of tyrosine and acidic pH conditions to induce tdcA ‐ tyrP polycistronic messenger transcription.
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Cited by
Biogenic Amine Production by Lactic Acid Bacteria: A Review
Barbieri, F., Montanari, C., Gardini, F., & Tabanelli, G. (2019) · Foods · doi:10.3390/foods8010017 · Cited by 528
Portune, K. J., Beaumont, M., Davila, A.-M., Tomé, D., Blachier, F., & Sanz, Y. (2016) · Trends in Food Science & Technology · doi:10.1016/j.tifs.2016.08.011 · Cited by 356
Beyond the gut: decoding the gut–immune–brain axis in health and disease
Park, J. C., Chang, L., Kwon, H.-K., & Im, S.-H. (2025) · Cellular & Molecular Immunology · doi:10.1038/s41423-025-01333-3 · Cited by 149
Metadata
- Authors
- Linares, D. M., Fernández, M., Martín, M. C., & Álvarez, M. A.
- Venue
- Microbial Biotechnology
- Publisher
- Wiley
- Published
- 2009-10-20
- Volume
- 2
- Issue
- 6
- Pages
- 625-633
- ISSN
- 1751-7915
- Cited by
- 58
- References
- 1
- Language
- en
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- Linares, D. M., Fernández, M., Martín, M. C., & Álvarez, M. A. (2009). Tyramine biosynthesis in Enterococcus durans is transcriptionally regulated by the extracellular pH and tyrosine concentration. Microbial Biotechnology. https://doi.org/10.1111/j.1751-7915.2009.00117.x
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