Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.

Multidrug resistance in Pseudomonas aeruginosa, a high-priority pathogen per the World Health Organization, poses a global threat due to carbapenem resistance and limited antibiotic treatments. Using the bioinformatic tools CRISPRCasFinder, CRISPRCasTyper, CRISPRloci, and CRISPRImmunity, we analyzed...

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Main Authors: Javier Alejandro Delgado-Nungaray, Luis Joel Figueroa-Yáñez, Eire Reynaga-Delgado, Ana Montserrat Corona-España, Orfil Gonzalez-Reynoso
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0312783
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author Javier Alejandro Delgado-Nungaray
Luis Joel Figueroa-Yáñez
Eire Reynaga-Delgado
Ana Montserrat Corona-España
Orfil Gonzalez-Reynoso
author_facet Javier Alejandro Delgado-Nungaray
Luis Joel Figueroa-Yáñez
Eire Reynaga-Delgado
Ana Montserrat Corona-España
Orfil Gonzalez-Reynoso
author_sort Javier Alejandro Delgado-Nungaray
collection DOAJ
description Multidrug resistance in Pseudomonas aeruginosa, a high-priority pathogen per the World Health Organization, poses a global threat due to carbapenem resistance and limited antibiotic treatments. Using the bioinformatic tools CRISPRCasFinder, CRISPRCasTyper, CRISPRloci, and CRISPRImmunity, we analyzed the genome of P. aeruginosa PAO1 and revealed an orphan CRISPR system, suggesting it may be a remnant of a type IV system due to the presence of the DinG protein. This system comprises two CRISPR arrays and noteworthy DinG and Cas3 proteins, supporting recent evidence about the association between type IV and I CRISPR systems. Additionally, we demonstrated a co-evolutionary relationship between the orphan CRISPR system in P. aeruginosa PAO1 and the mobile genetic element and prophages identified. One self-targeting spacer was identified, often associated with bacterial evolution and autoimmunity, and no Acr proteins. This research opens avenues for studying how these CRISPR arrays regulate pathogenicity and for developing alternative strategies using its endogenous orphan CRISPR system against carbapenem-resistant P. aeruginosa strains.
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publishDate 2024-01-01
publisher Public Library of Science (PLoS)
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spelling doaj-art-b8d9dff16c7542e0883e3a837456780b2025-01-08T05:32:13ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011912e031278310.1371/journal.pone.0312783Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.Javier Alejandro Delgado-NungarayLuis Joel Figueroa-YáñezEire Reynaga-DelgadoAna Montserrat Corona-EspañaOrfil Gonzalez-ReynosoMultidrug resistance in Pseudomonas aeruginosa, a high-priority pathogen per the World Health Organization, poses a global threat due to carbapenem resistance and limited antibiotic treatments. Using the bioinformatic tools CRISPRCasFinder, CRISPRCasTyper, CRISPRloci, and CRISPRImmunity, we analyzed the genome of P. aeruginosa PAO1 and revealed an orphan CRISPR system, suggesting it may be a remnant of a type IV system due to the presence of the DinG protein. This system comprises two CRISPR arrays and noteworthy DinG and Cas3 proteins, supporting recent evidence about the association between type IV and I CRISPR systems. Additionally, we demonstrated a co-evolutionary relationship between the orphan CRISPR system in P. aeruginosa PAO1 and the mobile genetic element and prophages identified. One self-targeting spacer was identified, often associated with bacterial evolution and autoimmunity, and no Acr proteins. This research opens avenues for studying how these CRISPR arrays regulate pathogenicity and for developing alternative strategies using its endogenous orphan CRISPR system against carbapenem-resistant P. aeruginosa strains.https://doi.org/10.1371/journal.pone.0312783
spellingShingle Javier Alejandro Delgado-Nungaray
Luis Joel Figueroa-Yáñez
Eire Reynaga-Delgado
Ana Montserrat Corona-España
Orfil Gonzalez-Reynoso
Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.
PLoS ONE
title Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.
title_full Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.
title_fullStr Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.
title_full_unstemmed Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.
title_short Unveiling the endogenous CRISPR-Cas system in Pseudomonas aeruginosa PAO1.
title_sort unveiling the endogenous crispr cas system in pseudomonas aeruginosa pao1
url https://doi.org/10.1371/journal.pone.0312783
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