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  • 1
    Language: English
    In: RNA Biology, 29 July 2018, p.1-7
    Description: Neisseria meningitidis , a commensal β-proteobacterium of the human nasopharynx, constitutes a worldwide leading cause of sepsis and epidemic meningitis. A recent genome-wide association study suggested an association of its type II-C CRISPR/Cas system with carriage and thus less invasive lineages. Here, we show that knock-out strains lacking the Cas9 protein are impaired in the adhesion to human nasopharyngeal cells which constitutes a central step in the pathogenesis of invasive meningococcal disease. Transcriptome sequencing data further suggest that meningococcal Cas9 does not affect the expression of surface adhesins but rather exerts its effect on cell adhesion in an indirect manner. Consequently, we speculate that the meningococcal CRISPR/Cas system exerts novel functions beyond its established role in defence against foreign DNA. Article ahead-of-print.
    Keywords: Short Communication ; Neisseria Meningitidis ; Crispr/Cas ; Cas9 ; Virulence ; Nasopharynx ; Rna-Seq ; Rip-Seq
    ISSN: 1547-6286
    E-ISSN: 1555-8584
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