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Prevotella intermedia

ABSTRACT: Causes in periodontal disease

PROVIDER: PRJNA35111 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR13820470_1.fastq.gz	Fastqsanger.gz
	SRR13820470_2.fastq.gz	Fastqsanger.gz
	SRR13820471_1.fastq.gz	Fastqsanger.gz
	SRR13820471_2.fastq.gz	Fastqsanger.gz

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Role of OxyR in Prevotella intermedia

Project description:Wild type Prevotella intermedia OMA14 strain (V3203) was used to compare to the OxyR-deficient strain (V3147).

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Complete Genome Sequence of Prevotella intermedia Strain 17-2.

Project description:Prevotella intermedia, a Gram-negative black-pigmented anaerobic rod, is frequently isolated from not only periodontal pockets but also purulent infections. We report here the complete genome sequence of P. intermedia strain 17-2, which is a non-exopolysaccharide-producing variant obtained from exopolysaccharide (EPS)-producing P. intermedia strain 17 stock culture.

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Nucleases from Prevotella intermedia can degrade neutrophil extracellular traps.

Project description:Periodontitis is an inflammatory disease caused by periodontal bacteria in subgingival plaque. These bacteria are able to colonize the periodontal region by evading the host immune response. Neutrophils, the host's first line of defense against infection, use various strategies to kill invading pathogens, including neutrophil extracellular traps (NETs). These are extracellular net-like fibers comprising DNA and antimicrobial components such as histones, LL-37, defensins, myeloperoxidase, and neutrophil elastase from neutrophils that disarm and kill bacteria extracellularly. Bacterial nuclease degrades the NETs to escape NET killing. It has now been shown that extracellular nucleases enable bacteria to evade this host antimicrobial mechanism, leading to increased pathogenicity. Here, we compared the DNA degradation activity of major Gram-negative periodontopathogenic bacteria, Porphyromonas gingivalis, Prevotella intermedia, Fusobacterium nucleatum, and Aggregatibacter actinomycetemcomitans. We found that Pr. intermedia showed the highest DNA degradation activity. A genome search of Pr. intermedia revealed the presence of two genes, nucA and nucD, putatively encoding secreted nucleases, although their enzymatic and biological activities are unknown. We cloned nucA- and nucD-encoding nucleases from Pr. intermedia ATCC 25611 and characterized their gene products. Recombinant NucA and NucD digested DNA and RNA, which required both Mg2+ and Ca2+ for optimal activity. In addition, NucA and NucD were able to degrade the DNA matrix comprising NETs.

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Project description:Uremia causes dysbiosis-mediated periodontal disease

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Project description:Prevotella intermedia ATCC 15032 and 15033 Genome sequencing

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