Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp.
Shigella causes millions of cases and hundreds of thousands of deaths annually, mainly affecting children in impoverished countries. Shigellosis outbreaks have been linked to waterborne transmission, and chlorination is commonly used to disinfect water. However, the emergence of chlorine-resistant S...
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01015.pdf |
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| author | Selvam Dharshini Mohd Ismail Nor Ismaliza Ng Michelle Y. T. |
| author_facet | Selvam Dharshini Mohd Ismail Nor Ismaliza Ng Michelle Y. T. |
| author_sort | Selvam Dharshini |
| collection | DOAJ |
| description | Shigella causes millions of cases and hundreds of thousands of deaths annually, mainly affecting children in impoverished countries. Shigellosis outbreaks have been linked to waterborne transmission, and chlorination is commonly used to disinfect water. However, the emergence of chlorine-resistant Shigella spp. is a concern. Therefore, it is imperative to develop an alternative antibacterial agent such as endolysin against the Shigella spp. In this study, the Escherichia phage KW1E_UTAR gene encoding for endolysin was successfully cloned and expressed in Escherichia coli pET-28a. The purified endolysin was characterized, and its antibacterial activity was determined. The purified endolysin remained stable between pH 4 and 9, and at a broad range of temperature (4°C–75°C). The endolysin's storage stability was tested for one week, one month, and three months at different temperatures (4°C, −20°C, and −80°C). Despite over 50% drop in the lytic activity, the purified endolysin outperformed the commercial lysozyme. Besides, all four Shigella spp. tested were susceptible to the purified endolysin, with Shigella flexneri being the most prominent. Subsequently, the purified endolysin’s effectiveness in removing S. flexneri from spiked water samples was evaluated. After an hour of treatment, the number of viable bacteria in the water samples was reduced by 99.9%. Therefore, endolysin could be effective at eradicating Shigella spp. in various water sources. |
| format | Article |
| id | doaj-art-158a395d1dae4b7a922dac46302fe647 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
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| series | E3S Web of Conferences |
| spelling | doaj-art-158a395d1dae4b7a922dac46302fe6472025-02-05T10:47:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016030101510.1051/e3sconf/202560301015e3sconf_isgst2024_01015Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp.Selvam Dharshini0Mohd Ismail Nor Ismaliza1Ng Michelle Y. T.2Department of Biological Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Baru BaratDepartment of Biological Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Baru BaratDepartment of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Baru BaratShigella causes millions of cases and hundreds of thousands of deaths annually, mainly affecting children in impoverished countries. Shigellosis outbreaks have been linked to waterborne transmission, and chlorination is commonly used to disinfect water. However, the emergence of chlorine-resistant Shigella spp. is a concern. Therefore, it is imperative to develop an alternative antibacterial agent such as endolysin against the Shigella spp. In this study, the Escherichia phage KW1E_UTAR gene encoding for endolysin was successfully cloned and expressed in Escherichia coli pET-28a. The purified endolysin was characterized, and its antibacterial activity was determined. The purified endolysin remained stable between pH 4 and 9, and at a broad range of temperature (4°C–75°C). The endolysin's storage stability was tested for one week, one month, and three months at different temperatures (4°C, −20°C, and −80°C). Despite over 50% drop in the lytic activity, the purified endolysin outperformed the commercial lysozyme. Besides, all four Shigella spp. tested were susceptible to the purified endolysin, with Shigella flexneri being the most prominent. Subsequently, the purified endolysin’s effectiveness in removing S. flexneri from spiked water samples was evaluated. After an hour of treatment, the number of viable bacteria in the water samples was reduced by 99.9%. Therefore, endolysin could be effective at eradicating Shigella spp. in various water sources.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01015.pdf |
| spellingShingle | Selvam Dharshini Mohd Ismail Nor Ismaliza Ng Michelle Y. T. Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp. E3S Web of Conferences |
| title | Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp. |
| title_full | Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp. |
| title_fullStr | Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp. |
| title_full_unstemmed | Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp. |
| title_short | Potential of a novel and thermostable recombinant phage endolysin of Escherichia phage KW1E_UTAR against Shigella spp. |
| title_sort | potential of a novel and thermostable recombinant phage endolysin of escherichia phage kw1e utar against shigella spp |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01015.pdf |
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