ArticleThe Journal of biological chemistry
The PorX/PorY system is a virulence factor of Porphyromonas gingivalis and mediates the activation of the type IX secretion system.
Article in The Journal of biological chemistry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 12 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
- The survival status ofJournal of oral microbiology · 2026Review
- Porphyromonas gingivalis Type 9 Secretion System Promotes Dysregulation of Vascular Smooth Muscle Cell Plasticity With Perturbed TGF-β/Smad Signaling.MicrobiologyOpen · 2025Article
- PorA of the Type IX Secretion Is a Ligand of the PorXY Two-Component Regulatory System in Porphyromonas gingivalis.Molecular microbiology · 2025Article
- Advances in the type IX secretion system: an exploration focusing onCurrent research in microbial sciences · 2025Review
- Unveiling the molecular mechanisms of the type IX secretion system's response regulator: Structural and functional insights.PNAS nexus · 2024Article
- Structure-function analysis of PorXScientific reports · 2024Article
- Response regulator PorX coordinates oligonucleotide signalling and gene expression to control the secretion of virulence factors.Nucleic acids research · 2022Article
- Purification, crystallization and crystallographic analysis of the PorX response regulator associated with the type IX secretion system.Acta crystallographica. Section F, Structural biology communications · 2022Article
- A PorX/PorY and σmSphere · 2021Article
Corrections and comments
- Erratum issued
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
PorX/PorY is a two-component system (TCS) of Porphyromonas gingivalis that governs transcription of numerous genes including those encoding a type IX secretion system (T9SS) for gingipain secretion and heme accumulation. Here, an in vitro analysis showed that the response regulator PorX specifically bound to two regions in the promoter of porT, a known PorX-regulated T9SS gene, thus demonstrating that PorX/PorY can directly regulate specific target genes. A truncated PorX protein containing the N-terminal receiver and effector domains retained a wild-type ability in both transcription regulation and heme accumulation, ruling out the role of the C-terminal ALP domain in gene regulation. The PorX/PorY system was the only TCS essential for heme accumulation and concomitantly responded to hemin to stimulate transcription of several known PorX-dependent genes in a concentration-dependent manner. We found that PorX/PorY activated the sigH gene, which encodes a sigma factor known for P. gingivalis adaptation to hydrogen peroxide (H
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.