Porphyromonas gingivalis
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ABSTRACT:
PROVIDER: PRJNA106395 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The role of ECF sigma factors PG0162, PG01660 were involved in virulence regulationin Porphyromonas gingivalis was published Yuetan Dou, Devon Osbourne, Rachelle McKenzie, Hansel M Fletcher. (2010) Involvement of extracytoplasmic function sigma factors in virulence regulation in Porphyromonas gingivalis W83. FEMS Microbiology Letter, 312(1):24-32.
2017-09-14 | GSE103739 | GEO
Project description:To investigate the comprehensive function of trkA in Porphyromonas gingivalis W83, we established isogenic trkA deletion strain via homologous recombination and compared the transcriptional alteration between mutant and wild type group through RNA sequencing.
2022-11-07 | GSE210663 | GEO
Project description:The aim of this study is to investigate the alterations in gene expression in Porphyromonas gingivalis W83 after inoculation in rat oral cavity. P.gingivalis W83 inoculation in rat oral cavity caused inflammatory responses in gingival tissues and destroyed host alveolar bone. Microarray analysis revealed that 42 genes were upregulated, and 22 genes were downregulated in the detected 1786 genes in the inoculated P.gingivalis W83. Products of these upregulated and downregulated genes are mainly related to transposon functions, cell transmembrane transportation, protein and nucleic acid metabolism, energy metabolism, cell division and bacterial pathogenicity.P.gingivalis W83 has a pathogenic effect on host oral cavity. Meanwhile, inflammatory oral environment alters P.gingivalis W83 gene expression profile. These changes in gene expression may limit the proliferation and weaken the pathogenicity of P.gingivalis W83, and favor themselves to adapt local environment for survival.
2015-04-07 | GSE67608 | GEO
Project description:To study the expression profile of ECF sigma factor PG1660 mutant under anaerobic conditions and hydrogen peroxide stress conditions compared to the wild-type W83 by using DNA-microarray. The role of ECF sigma factor PG1660 involved in oxidative stress was published Yuetan Dou, Devon Osbourne, Rachelle McKenzie, Hansel M Fletcher. (2010) Involvement of extracytoplasmic function sigma factors in virulence regulation in Porphyromonas gingivalis W83. FEMS Microbiology Letter, 312(1):24-32.
2017-09-14 | GSE103838 | GEO
Project description:Porphyromonas gingivalis (P. gingivalis) W83 cultures in early exponential phase were supplemented with 0.1% galactose or vehicle control. The cultures were then permitted to grow anaerobically at 37°C for 3 hours, which corresponds to approximately one doubling of P. gingivalis. At this point, RNA extraction was performed using the cultures, and these samples were processed and submitted for RNA sequencing using an Illumina platform. Modest changes in gene expression were observed between cultures grown with or without galactose, and the majority of changes were associated with processes occurring at the cell membrane.
2018-12-21 | GSE124206 | GEO
Project description:The aim of the study was to identify the role of flavodoxin gene in the virulence of P. gingivalis W83.The mRNA profiles of P. gingivalis W83 and flavodoxin mutant strain were generated by deep sequencing, in triplicate, using Illumina sequencing platform. Differential expression analysis of two groups (Three biological replicates per group) was performed using the DESeq R package. In total, 376 genes met the DEGs criteria (194 upregulated genes and 182 down-regulated genes). The KEGG pathway analysis indicated the DEGs were significantly enriched in three KEGG pathways, comprising pathways associated with Peroxisome, Two-component system and Quorum sensing.Importantly, we found that the flavodoxin gene can regulate the type IX secretion system and oxidative stress system in P. gingivalis W83. The knowledge obtained will help us to deeply understand the role of flavodoxin gene in the P. gingivalis W83 genome.
2021-10-24 | GSE186376 | GEO
Project description:Porphyromonas gingivalis: Control (Wild-type W83) vs. its htrA mutant
| PRJNA108583 | ENA
Project description:Genotyping studies suggest that there is genetic variability among P. gingivalis strains, however the extent of variability remains unclear, and the regions of variability have only partially been identified. We previously used heteroduplex analysis of the ribosomal operon intergenic spacer region (ISR) to type P. gingivalis strains in several diverse populations, identifying 6 predominant heteroduplex types and many minor ones. In addition we used ISR sequence analysis to determine the relatedness of P. gingivalis strains to one another, and demonstrated a link between ISR sequence phylogeny and the disease-associated phenotype of P. gingivalis strains. The availability of whole genome microarrays based on the genomic sequence of strain W83 has allowed a more comprehensive analysis of P. gingivalis strain variability, using the entire genome. The objectives of this study were to define the phylogeny of P. gingivalis strains using the entire genome, to compare the phylogeny based on genome content to the phylogeny based on a single locus (ISR), and to identify genes that are associated with the strongly disease-associated strain W83 that could be important for virulence. Keywords: Comparative genomic hybridization Comparative genomic analysis of 7 clinically prevalent P. gingivalis strains was performed, using whole genome microarrays based on the sequence of strain W83. Strain W83 was the reference strains and there were 6 test strains. Flip-dye replicates were performed.
2010-05-18 | E-GEOD-13128 | biostudies-arrayexpress
Project description:Wild type Porphyromonas gingivalis strain ATCC33277 (V3176) and PG1626 - deficient mutant (V3177) were grown in iron replete conditions was used to compare to Porphyromonas gingivalis strains grown in iron chelated conditions.
2023-06-08 | GSE174493 | GEO
Project description:Porphyromonas gingivalis (P. gingivalis) 381 and W83 growing in motility condition (i.e. stabbed in soft agar culture) and on surface of solid agar culture (Biofilm) were prepared. Applied medium was BAPHK supplemented with hemin and menadione . The cultures were then permitted to grow anaerobically at 37°C for 24 hours, which corresponds to initial stages of surface translocation by P. gingivalis. At this point, RNA extraction was performed using the cultures, and these samples were processed and submitted for RNA sequencing using an Illumina platform. Significant changes in gene expression were observed in cells growing in motility and biofilm modes , and the majority of changes were associated with cell surface proteins, membrane proteins, biosynthesis of folates and bioenergetic pathways.
2019-03-31 | GSE128025 | GEO