ArticleBMC genomics2015
Genome analysis and in vivo virulence of porcine extraintestinal pathogenic Escherichia coli strain PCN033.
Article in BMC genomics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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Who cites it
51 citing papers in PubMed.
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- De novo nucleotide biosynthesis and its dynamic regulation are crucial for systemic infection by extraintestinal Escherichia coli.PLoS pathogens · 2026Article
- Protegrin-1 Combats Multidrug-Resistant Porcine ExPEC: Potent Bactericidal Activity and Multimodal Immunometabolic Regulation In Vitro and in a Murine Model.Veterinary sciences · 2025Article
- CK2 derived from brain microvascular endothelial cells induces astrocyte inflammatory response in Escherichia coli-induced meningitis.PLoS pathogens · 2025Article
- Interferon lambda 4 is a gut antimicrobial protein.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Horizontal transfer characterization of ColV plasmids in blaPoultry science · 2024Article
- Antibacterial activity of the antimicrobial peptide PMAP-36 in combination with tetracycline against porcine extraintestinal pathogenic Escherichia coli in vitro and in vivo.Veterinary research · 2024Article
- Pathogenomes and virulence profiles of representative big six non-O157 serogroup Shiga toxin-producingFrontiers in microbiology · 2024Article
- Genome-wide identification of genes critical forVirulence · 2023Article
- Baicalin Weakens the Porcine ExPEC-Induced Inflammatory Response in 3D4/21 Cells by Inhibiting the Expression of NF-Microorganisms · 2023Article
- A Novel Antimicrobial Peptide Derived from Bony Fish IFN1 Exerts Potent Antimicrobial and Anti-Inflammatory Activity in Mammals.Microbiology spectrum · 2022Article
- The Rcs System Contributes to the Motility Defects of the Twin-Arginine Translocation System Mutant of Extraintestinal Pathogenic Escherichia coli.Journal of bacteriology · 2022Article
- Long Non-coding Antisense RNA DDIT4-AS1 Regulates Meningitic Escherichia coli-Induced Neuroinflammation by Promoting DDIT4 mRNA Stability.Molecular neurobiology · 2022Article
- Long non-coding RNA lncC11orf54-1 modulates neuroinflammatory responses by activating NF-κB signaling during meningitic Escherichia coli infection.Molecular brain · 2022Article
- MeningiticFrontiers in cellular neuroscience · 2022Article
- Impact ofVeterinary and animal science · 2021Article
- miR-155 and miR-146a collectively regulate meningitic Escherichia coli infection-mediated neuroinflammatory responses.Journal of neuroinflammation · 2021Article
- Characterisation of Phage Susceptibility Variation inMicroorganisms · 2021Article
- ExploringFrontiers in microbiology · 2021Article
- Lower Funneling Pathways inFrontiers in microbiology · 2021Article
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundStrains of extraintestinal pathogenic Escherichia coli (ExPEC) can invade and colonize extraintestinal sites and cause a wide range of infections. Genomic analysis of ExPEC has mainly focused on isolates of human and avian origins, with porcine ExPEC isolates yet to be sequenced. To better understand the genomic attributes underlying the pathogenicity of porcine ExPEC, we isolated two E. coli strains PCN033 and PCN061 from pigs, assessed their in vivo virulence, and completed and compared their genomes.
resultsAnimal experiments demonstrated that strain PCN033, but not PCN061, was pathogenic in a pig model. The chromosome of PCN033 was 384 kb larger than that of PCN061. Among the PCN033-specific sequences, genes encoding adhesins, unique lipopolysaccharide, unique capsular polysaccharide, iron acquisition and transport systems, and metabolism were identified. Additionally, a large plasmid PCN033p3 harboring many typical ExPEC virulence factors was identified in PCN033. Based on the genetic variation between PCN033 and PCN061, corresponding phenotypic differences in flagellum-dependent swarming motility and metabolism were verified. Furthermore, the comparative genomic analyses showed that the PCN033 genome shared many similarities with genomic sequences of human ExPEC strains. Additionally, comparison of PCN033 genome with other nine characteristic E. coli genomes revealed 425 PCN033-special coding sequences. Genes of this subset included those encoding type I restriction-modification (R-M) system, type VI secretion system (T6SS) and membrane-associated proteins.
conclusionsThe genetic and phenotypic differences between PCN033 and PCN061 could partially explain their differences in virulence, and also provide insight towards the molecular mechanisms of porcine ExPEC infections. Additionally, the similarities between the genomes of PCN033 and human ExPEC strains suggest that some connections between porcine and human ExPEC strains exist. The first completed genomic sequence for porcine ExPEC and the genomic differences identified by comparative analyses provide a baseline understanding of porcine ExPEC genetics and lay the foundation for their further study.
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