Lactobacillus bile salt hydrolase substrate specificity governs bacterial fitness and host colonization
Foley, M. H., Sarah, O. F., Allen, G., Rivera, A. J., Stewart, A. K., Barrangou, R., & Theriot, C. M. (2021, February 1). Proceedings of the National Academy of Sciences, Vol. 118.
author keywords: Lactobacillus; Acidophilus; gasseri; bile salt hydrolase; bile acid
MeSH headings : Amidohydrolases / genetics; Amidohydrolases / metabolism; Ecosystem; Gastrointestinal Microbiome / genetics; Gastrointestinal Microbiome / physiology; Genetic Fitness / genetics; Host-Pathogen Interactions / genetics; Humans; Lactobacillus / enzymology; Lactobacillus / genetics; Probiotics / pharmacology; Substrate Specificity / genetics
topics (OpenAlex): Gut microbiota and health; Drug Transport and Resistance Mechanisms; Probiotics and Fermented Foods
TL;DR:
It is shown that BA type and BSH substrate preferences affect in vitro and in vivo growth of both species and that BSH enzymatic preferences and the intrinsic chemical features of various BAs determine the toxicity of these molecules during Lactobacillus growth.
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