ArticleMolecular oral microbiology2020
Role of the RprY response regulator in P. gingivalis community development and virulence.
Article in Molecular oral microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 16 citations in OpenAlex.
- Structural and mechanistic basis of ubiquitous bacterial kinase signaling identifies PorX as a noncanonical substrate in Porphyromonas gingivalis.The Journal of biological chemistry · 2026Article
- Tyrosine phosphorylation coupling of one-carbon metabolism and virulence in an endogenous pathogen.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- Giving a signal: how protein phosphorylation helps Bacillus navigate through different life stages.FEMS microbiology reviews · 2023Review
- Modulatory Mechanisms of Pathogenicity inMicroorganisms · 2022Review
- A quantitative framework reveals traditional laboratory growth is a highly accurate model of human oral infection.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- TrkA serves as a virulence modulator inFrontiers in cellular and infection microbiology · 2022Article
- Phosphorylation of major Porphyromonas gingivalis virulence factors is crucial for their processing and secretion.Molecular oral microbiology · 2021Article
- Identification and characterization of a UbK family kinase in Porphyromonas gingivalis that phosphorylates the RprY response regulator.Molecular oral microbiology · 2021Article
- Contribution of NmSystems · 2021Article
- Protein Tyrosine and Serine/Threonine Phosphorylation in Oral Bacterial Dysbiosis and Bacteria-Host Interaction.Frontiers in cellular and infection microbiology · 2021Review
- Post-translational Modifications in Oral Bacteria and Their Functional Impact.Frontiers in microbiology · 2021Review
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
Porphyromonas gingivalis expresses a limited number of two-component systems, including RprY, an orphan response regulator which lacks a cognate sensor kinase. In this study, we examined cross-phosphorylation of RprY on tyrosine residues and its importance for RprY function. We show that RprY reacts with phosphotyrosine antibodies, and found that the tyrosine (Y) residue at position 41 is predicted to be solvent accessible. Loss of RprY increased the level of heterotypic community development with Streptococcus gordonii, and the community-suppressive function of RprY required Y41. Expression of the Mfa1 fimbrial adhesin was increased in the rprY mutant and in the mutant complemented with rprY containing a Y41F mutation. In a microscale thermophoresis assay, recombinant RprY protein bound to the promoter region of mfa1, and binding was diminished with RprY containing the Y41F substitution. RprY was required for virulence of P. gingivalis in a murine model of alveolar bone loss. Transcriptional profiling indicated that RprY can control the expression of genes encoding the type IX secretion system (T9SS) machinery and virulence factors secreted through the T9SS, including the gingipain proteases and peptidylarginine deiminase (PPAD). Collectively, these results establish the RprY response regulator as a component of the tyrosine phosphorylation regulon in P. gingivalis, which can independently control heterotypic community development through the Mfa1 fimbriae and virulence through the T9SS.
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