ArticleJournal of bacteriology2002
Pal lipoprotein of Escherichia coli plays a major role in outer membrane integrity.
Article in Journal of bacteriology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 162 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
162 citing papers in PubMed, 289 citations in OpenAlex.
- Bacterial Outer Membrane Vesicles: Research Advances from Biogenesis Mechanisms to Engineered Applications.Membranes · 2026Review
- A periplasmic layer formed by an outer membrane lipoprotein governs the cell-envelope integrity and stiffness of Leptospira interrogans.Communications biology · 2026Article
- Bacterial extracellular vesicles indirectly destabilize a human stem cell-derived blood-brain barrier on-chip through pro-inflammatory stimulation of immune cells.Lab on a chip · 2026Article
- Helicobacter pylori-derived outer membrane vesicles: Pathogenic roles, microbiota interactions, and biomedical applications.Journal of advanced research · 2026Review
- Frontiers in bacterial outer membrane vesicles: From basic characteristics to cancer therapy.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2026Article
- Liganded LolCDE structures reveal a common substrate-LolE interaction guiding bacterial lipoprotein transport.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Bacterial extracellular vesicles indirectly destabilize a human stem cell-derived blood-brain barrier on-chip through pro-inflammatory stimulation of immune cells.bioRxiv : the preprint server for biology · 2026Article
- Length matters: the disordered N-terminus of Pal coordinates Lpp exclusion for outer membrane constriction inJournal of bacteriology · 2026Article
- Outer membrane vesicles as a versatile nanoplatform for advanced vaccine development and immunotherapy.Frontiers in immunology · 2026Review
- Involvement of hcp2 on maintaining cell wall integrity and pathogenicity of Vibrio alginolyticus by modulating Sec pathway.The Biochemical journal · 2025Article
- Wbm0152, an outer membrane lipoprotein of the Wolbachia endosymbiont of Brugia malayi, inhibits yeast ESCRT complex activity.PLoS pathogens · 2025Article
- Rapid key gene discovery for bacterial shape: a cross-species machine learning approach.BMC microbiology · 2025Article
- Advances in Small Molecule Inhibitors Targeting the Bacterial Lipoprotein Transport System (Lol) in Gram-Negative Bacteria.Chemistry, an Asian journal · 2025Review
- Bacterial Extracellular Vesicles: Emerging Regulators in the Gut-Organ Axis and Prospective Biomedical Applications.Current microbiology · 2025Review
- Repurposing a drug to punish carbapenem-resistantProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Primary role of the Tol-Pal complex in bacterial outer membrane lipid homeostasis.Nature communications · 2025Article
- Autonomous Defense Based on Biogenic Nanoparticle Formation in Daunomycin-ProducingMicroorganisms · 2025Article
- Global quantitative proteome analysis of a multi-resistantFrontiers in microbiology · 2025Article
- Article
- The Salmonella enterica EnvE is an Outer Membrane Lipoprotein and Its Gene Expression Leads to Transcriptional Repression of the Virulence Gene msgA.Journal of microbiology (Seoul, Korea) · 2024Article
102 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Tol-Pal system of gram-negative bacteria is composed of five proteins. TolA, TolQ, and TolR are inner membrane proteins, TolB is a periplasmic protein, and Pal, the peptidoglycan-associated lipoprotein, is anchored to the outer membrane. In this study, the roles of Pal and major lipoprotein Lpp were compared in Escherichia coli. lpp and tol-pal mutations have previously been found to perturb the outer membrane permeability barrier and to cause the release of periplasmic proteins and the formation of outer membrane vesicles. In this study, we showed that the overproduction of Pal is able to restore the outer membrane integrity of an lpp strain but that overproduced Lpp has no effect in a pal strain. Together with the previously reported observation that overproduced TolA complements an lpp but not a pal strain, these results indicate that the cell envelope integrity is efficiently stabilized by an epistatic Tol-Pal system linking inner and outer membranes. The density of Pal was measured and found to be lower than that of Lpp. However, Pal was present in larger amounts compared to TolA and TolR proteins. The oligomeric state of Pal was determined and a new interaction between Pal and Lpp was demonstrated.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.