Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Evaluation of gene expression and protein structural modeling involved in persister cell formation in Salmonella Typhimurium

Thu Aug 11 16:35:40 2022

(2020) Evaluation of gene expression and protein structural modeling involved in persister cell formation in Salmonella Typhimurium. Brazilian Journal of Microbiology. p. 11. ISSN 1517-8382

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Abstract

Persisters are phenotypic variants of the bacterial population that survive against lethal doses of bactericidal antibiotics.These phenotypes are created in numerous bacterial species, including those of clinical significance, such as Salmonella Typhimurium. Since persister cells are associated with the failure of antibiotic treatment and infection recurrence, it is crucial to identify the mechanisms that influence the formation of these cells. The aim of this study is to investigate the persister cell formation and expression analysis as well as to predict the 3D structure of the genes involved in the production of persister cells. The presence of persisters in S. Typhimurium was determined by time dependent killing of different types of bactericidal antibiotics and expression of genes associated with persister cell formation which was assessed five hours after the addition of antibiotics by the qRT-PCR. Indeed, the 3D structural model of the proteins studied was predicted by performing several computational methods of retrieved primary protein sequences. The results of the study showed that the S. Typhimurium produced high levels of persister cells in the exposure of bactericidal antibiotics. Furthermore, qRT-PCR resulted in the fact that the expression of related genes was different depending on the type of antibiotic. Overall, this study provides information on the creation of persister cells and the role of different genes in the formation of these cells and structure of proteins involved in the production of persister cells in S. Typhimurium.

Item Type: Article
Creators:
CreatorsEmail
Narimisa, N.UNSPECIFIED
Amraei, F.UNSPECIFIED
Kalani, B. S.UNSPECIFIED
Jazi, F. M.UNSPECIFIED
Keywords: Salmonella Typhimurium qRT-PCR Persister cell 3D structure toxin-antitoxin systems antibiotic tolerance growth arrest bacterial resistance salmonella prediction stress infections multidrug Microbiology
Divisions:
Page Range: p. 11
Journal or Publication Title: Brazilian Journal of Microbiology
Journal Index: ISI
Identification Number: https://doi.org/10.1007/s42770-020-00388-w
ISSN: 1517-8382
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/3179

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