Comparing genome-scale metabolic models of the non-resistant Enterococcus faecalis ATCC 19433 and the multi-resistant Enterococcus faecalis V583.

Autor: Loghmani SB; Ruprecht-Karls University Heidelberg, Bioquant, Center for Organismal Studies, Im Neuenheimer Feld 276, Heidelberg 69120, Germany., Zitzow E; Rostock University Medical Centre, Institute of Medical Microbiology, Virology and Hygiene, Schillingallee 70, Rostock 18057, Germany., Schwarzmüller L; Ruprecht-Karls University Heidelberg, Bioquant, Center for Organismal Studies, Im Neuenheimer Feld 276, Heidelberg 69120, Germany., Humboldt Y; Rostock University Medical Centre, Institute of Medical Microbiology, Virology and Hygiene, Schillingallee 70, Rostock 18057, Germany., Eisenberg P; Rostock University Medical Centre, Institute of Medical Microbiology, Virology and Hygiene, Schillingallee 70, Rostock 18057, Germany., Kreikemeyer B; Rostock University Medical Centre, Institute of Medical Microbiology, Virology and Hygiene, Schillingallee 70, Rostock 18057, Germany., Veith N; Ruprecht-Karls University Heidelberg, Bioquant, Center for Organismal Studies, Im Neuenheimer Feld 276, Heidelberg 69120, Germany., Kummer U; Ruprecht-Karls University Heidelberg, Bioquant, Center for Organismal Studies, Im Neuenheimer Feld 276, Heidelberg 69120, Germany., Fiedler T; Rostock University Medical Centre, Institute of Medical Microbiology, Virology and Hygiene, Schillingallee 70, Rostock 18057, Germany. Electronic address: tomas.fiedler@med.uni-rostock.de.
Jazyk: angličtina
Zdroj: Journal of biotechnology [J Biotechnol] 2024 Sep 10; Vol. 392, pp. 109-117. Date of Electronic Publication: 2024 Jul 10.
DOI: 10.1016/j.jbiotec.2024.07.006
Abstrakt: Enterococcus faecalis is a versatile lactic acid bacterium with a large variety of implications for humans. While some strains of this species are pathobionts being resistant against most of the common antibiotics, other strains are regarded as biological protectants or even probiotics. Accordingly, E. faecalis strains largely differ in the size and content of their accessory genome. In this study, we describe the genome-scale metabolic network reconstruction of E. faecalis ATCC 19433, a non-resistant human-associated strain. A comparison of the genome-scale metabolic model (GSM) of E. faecalis ATCC 19433 with a previously published GSM of the multi-resistant pathobiontic E. faecalis V583 reveals high similarities in the central metabolic abilities of these two human associated strains. This is reflected, e.g., in the identical amino acid auxotrophies. The ATCC 19433 strain, however, has a 14.1 % smaller genome than V583 and lacks the multiple antibiotic resistance genes and genes involved in capsule formation. Based on the measured metabolic fluxes at different growth rates, the energy demand at zero growth was calculated to be about 40 % lower for the ATCC 19433 strain compared to V583. Furthermore, the ATCC 19433 strain seems less prone to the depletion of amino acids utilizable for energy metabolism. This might hint at a lower overall energy demand of the ATCC 19433 strain as compared to V583.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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