The microbial metabolite desaminotyrosine protects from influenza through type I interferon
Eat more plants for influenza resilience
Abstract
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Why some flu strains become deadly?
The current flu in Hong Kong claimed hundreds of lives, with a mortality rate of nearly 2%. The major Influenza A strain circulating in Hong Kong is characterized by a N121K amino acid substitution (1). Lysine is a positively charged basic amino acid capable of binding anions. Anions such as Cl- could be deadly to cells either acting alone or in the form of strong acids. Overrepresentation of essential amino acids is a hallmark of numerous virulent viruses (2-5). As lysine is an essential amino acid, it was previously proposed that a starch staple or plant-based diet could be beneficial against viral infections (5-6).
Yunfan Shi, 1,4 Ying Zhang, 2,4 Ling Wen, 3 Qiuyun Liu 1,*
1. Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Biomedical Center, Lab of Microbial Metabolic Engineering and Synthetic Biology, State Key Laboratory of Biocontrol, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
2. Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China.
3. Twelfth People's Hospital, Tianhe, Guangzhou 510620, China.
4. Equal contributions.
*Correspondence author.
E-mail address: [email protected] (Q. Liu)
REFERENCES
1. R Trebbien et al. J Clin Virol 94:1 (2017)
2. J. He et al. Science, (2017); http://science.sciencemag.org/content/353/6298/503/tab-e-letters
3. J. He et al. Science, (2017); http://science.sciencemag.org/content/339/6125/1287/tab-e-letters
4. J. He et al. Science, (2017); http://science.sciencemag.org/content/355/6322/238/tab-e-letters
5. M. Tang, et al., Science, (2017); http://science.sciencemag.org/content/351/6279/1339/tab-e-letters.
6. Y. Zhang, et al., Science, (2017); http://science.sciencemag.org/content/351/6279/1339/tab-e-letters.
ACKNOWLEDGMENT
Manuscript editing by Ms. Yan Shi, and support from Guangzhou Science and Technology Program (General project 2018) and NNSF are appreciated.