Evidence map›Paper›PMID 15039340›Full record

ArticleInfection and immunity2004

Cell envelope protein PPE68 contributes to Mycobacterium tuberculosis RD1 immunogenicity independently of a 10-kilodalton culture filtrate protein and ESAT-6.

Caroline Demangel, Priscille Brodin, Paul J Cockle, Roland Brosch, Laleh Majlessi, Claude Leclerc, Stewart T Cole

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 96 citations in OpenAlex.

  1. Single-cell analysis revealsScience advances · 2025
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  2. Frontiers in microbiology · 2025
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  7. mBio · 2022
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  8. Article
  9. Review
  10. Modeling Tubercular ESX-1 Secretion Using Mycobacterium marinum.Microbiology and molecular biology reviews : MMBR · 2020
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Separable roles for Mycobacterium tuberculosis ESX-3 effectors in iron acquisition and virulence.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Caroline DemangelUnité de Génétique Moléculaire Bactérienne, Institut Pasteur, 75724 Paris Cedex 15, France. demangel@pasteur.fr
Priscille Brodin
Paul J Cockle
Roland Brosch
Laleh Majlessi
Claude Leclerc
Stewart T Cole
Inserm · FRInstitut Pasteur · FRVeterinary Medicines Directorate · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The protective efficacy of Mycobacterium bovis BCG can be markedly augmented by stable integration of Mycobacterium tuberculosis genomic region RD1. BCG complemented with RD1 (BCG::RD1) encodes nine additional proteins. Among them, 10-kDa culture filtrate protein (CFP-10) and ESAT-6 (6-kDa early secreted antigenic target) are low-molecular-weight proteins that induce potent Th1 responses. Using pools of synthetic peptides, we have examined the potential immunogenicity of four other RD1 products (PE35, PPE68, Rv3878, and Rv3879c). PPE68, the protein encoded by rv3873, was the only one to elicit gamma interferon (IFN-gamma)-producing cells in C57BL/6 mice infected with M. tuberculosis. Anti-PPE68 T cells were predominantly raised against an epitope mapped in the N-terminal end of the protein. Importantly, inactivation of rv3873 in BCG::RD1 did not modify CFP-10 and ESAT-6 secretion. Moreover, the generation of IFN-gamma responses to these antigens following immunization with BCG::RD1 was independent of PPE68 expression. Taken together, these results show that PPE68 is an immunogenic product of the RD1 region, which does not interfere with the secretion and immunogenicity of CFP-10 and ESAT-6.

Indexed as

Amino Acid SequenceAnimalsAntigens, BacterialBacterial ProteinsBCG VaccineEpitope MappingEpitopes, T-LymphocyteFemaleImmunodominant EpitopesInterferon-gammaMiceMice, Inbred C57BLMice, SCIDMolecular Sequence DataMycobacterium tuberculosisTh1 CellsAntigens, BacterialBacterial ProteinsBCG VaccineCFP-10 protein, Mycobacterium tuberculosisEpitopes, T-LymphocyteESAT-6 protein, Mycobacterium tuberculosisImmunodominant EpitopesInterferon-gamma

Identifiers

PMID15039340
PMCPMC375197
OpenAlexW2080546445

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.