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Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis

BACKGROUND: The holin-endolysin lysis system plays an essential role in the phage life cycle. Endolysins are promising alternatives to antibiotics, and have been successfully used against Gram-positive bacteria. However, a few endolysins can externally lyse Gram-negative bacteria, due to the inacces...

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Autores principales: Wang, Xinrui, Han, Lili, Rong, Jiaqing, Ren, Huiying, Liu, Wenhua, Zhang, Can
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9677904/
https://www.ncbi.nlm.nih.gov/pubmed/36411417
http://dx.doi.org/10.1186/s12917-022-03514-y
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author Wang, Xinrui
Han, Lili
Rong, Jiaqing
Ren, Huiying
Liu, Wenhua
Zhang, Can
author_facet Wang, Xinrui
Han, Lili
Rong, Jiaqing
Ren, Huiying
Liu, Wenhua
Zhang, Can
author_sort Wang, Xinrui
collection PubMed
description BACKGROUND: The holin-endolysin lysis system plays an essential role in the phage life cycle. Endolysins are promising alternatives to antibiotics, and have been successfully used against Gram-positive bacteria. However, a few endolysins can externally lyse Gram-negative bacteria, due to the inaccessible peptidoglycan layer covered by the envelope. RESULTS: This study investigated the lysis system of a new Siphoviridae bacteriophage vB_Sal-S-S10 (S10), which, that was isolated from broiler farms, was found to be able to infect 51.4% (37/72) of tested S. enteritidis strains. Phage S10 genome had a classic holin-endolysin lysis system, except that one holin and one endolysin gene were functionally annotated. The orf 22 adjacent to the lysis cassette was identified as a new endolysin gene. Antibacterial activity assays showed that holin had an intracellular penetrating activity against S. enteritidis 35; both endolysins acted on the cell envelope of S. enteritidis 35 and showed a natural extracellular antibacterial activity, leading to a ~ 1 log titer decrease in 30 min. Protein characterization of lysin1 and lysin2 revealed that the majority of the N-terminus and the C-terminus were hydrophobic amino acids or positively charged. CONCLUSION: In this study, a new Salmonella phage vB_Sal-S-S10 (S10) was characterized and showed an ideal development prospect. Phage S10 has a classic holin-endolysin lysis system, carrying an overlapping holin-lysin gene and a novel lysin gene. Both endolysins coded by lysin genes could externally lyse S. enteritidis. The natural extracellular antibacterial character of endolysins would provide necessary information for the development of engineering endolysin as the antibiotic alternative against the infection with multidrug-resistant gram-negative bacteria. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12917-022-03514-y.
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spelling pubmed-96779042022-11-22 Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis Wang, Xinrui Han, Lili Rong, Jiaqing Ren, Huiying Liu, Wenhua Zhang, Can BMC Vet Res Research BACKGROUND: The holin-endolysin lysis system plays an essential role in the phage life cycle. Endolysins are promising alternatives to antibiotics, and have been successfully used against Gram-positive bacteria. However, a few endolysins can externally lyse Gram-negative bacteria, due to the inaccessible peptidoglycan layer covered by the envelope. RESULTS: This study investigated the lysis system of a new Siphoviridae bacteriophage vB_Sal-S-S10 (S10), which, that was isolated from broiler farms, was found to be able to infect 51.4% (37/72) of tested S. enteritidis strains. Phage S10 genome had a classic holin-endolysin lysis system, except that one holin and one endolysin gene were functionally annotated. The orf 22 adjacent to the lysis cassette was identified as a new endolysin gene. Antibacterial activity assays showed that holin had an intracellular penetrating activity against S. enteritidis 35; both endolysins acted on the cell envelope of S. enteritidis 35 and showed a natural extracellular antibacterial activity, leading to a ~ 1 log titer decrease in 30 min. Protein characterization of lysin1 and lysin2 revealed that the majority of the N-terminus and the C-terminus were hydrophobic amino acids or positively charged. CONCLUSION: In this study, a new Salmonella phage vB_Sal-S-S10 (S10) was characterized and showed an ideal development prospect. Phage S10 has a classic holin-endolysin lysis system, carrying an overlapping holin-lysin gene and a novel lysin gene. Both endolysins coded by lysin genes could externally lyse S. enteritidis. The natural extracellular antibacterial character of endolysins would provide necessary information for the development of engineering endolysin as the antibiotic alternative against the infection with multidrug-resistant gram-negative bacteria. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12917-022-03514-y. BioMed Central 2022-11-21 /pmc/articles/PMC9677904/ /pubmed/36411417 http://dx.doi.org/10.1186/s12917-022-03514-y Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Wang, Xinrui
Han, Lili
Rong, Jiaqing
Ren, Huiying
Liu, Wenhua
Zhang, Can
Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
title Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
title_full Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
title_fullStr Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
title_full_unstemmed Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
title_short Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
title_sort endolysins of bacteriophage vb_sal-s-s10 can naturally lyse salmonella enteritidis
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9677904/
https://www.ncbi.nlm.nih.gov/pubmed/36411417
http://dx.doi.org/10.1186/s12917-022-03514-y
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