Evidence map›Paper›PMID 12486060›Full record

ArticleJournal of bacteriology2003

Multiple promoter inversions generate surface antigenic variation in Mycoplasma penetrans.

Atsuko Horino, Yuko Sasaki, Tsuguo Sasaki, Tsuyoshi Kenri

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

18 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Unveiling the stealthy tactics: mycoplasma's immune evasion strategies.Frontiers in cellular and infection microbiology · 2023
    Review
  4. Article
  5. Review
  6. TheAntibiotics (Basel, Switzerland) · 2021
    Article
  7. Article
  8. Molecular Mechanisms ofJournal of bacteriology · 2019
    Article
  9. Article
  10. Phase Variation ofMicrobiology spectrum · 2019
    Article
  11. Article
  12. Article
  13. Binding of IgA by Mycoplasma penetrans.Current microbiology · 2009
    Article
  14. Genome of Mycoplasma arthritidis.Infection and immunity · 2008
    Article
  15. Article
  16. Review
  17. Article
  18. Phase and antigenic variation in bacteria.Clinical microbiology reviews · 2004
    Review
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

4 authors at 1 institution in 1 country.

Atsuko HorinoDepartment of Bacterial Pathogenesis and Infection Control, National Institute of Infectious Diseases, Tokyo 208-0011, Japan.
Yuko Sasaki
Tsuguo Sasaki
Tsuyoshi Kenri
National Institute of Infectious Diseases · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mycoplasma penetrans is a newly identified species of the genus MYCOPLASMA: It was first isolated from a urine sample from a human immunodeficiency virus (HIV)-infected patient. M. penetrans changes its surface antigen profile with high frequency. The changes originate from ON<==>OFF phase variations of the P35 family of surface membrane lipoproteins. The P35 family lipoproteins are major antigens recognized by the human immune system during M. penetrans infection and are encoded by the mpl genes. Phase variations of P35 family lipoproteins occur at the transcriptional level of mpl genes; however, the precise genetic mechanisms are unknown. In this study, the molecular mechanisms of surface antigen profile change in M. penetrans were investigated. The focus was on the 46-kDa protein that is present in M. penetrans strain HF-2 but not in the type strain, GTU. The 46-kDa protein was the product of a previously reported mpl gene, pepIMP13, with an amino-terminal sequence identical to that of the P35 family lipoproteins. Nucleotide sequencing analysis of the pepIMP13 gene region revealed that the promoter-containing 135-bp DNA of this gene had the structure of an invertible element that functioned as a switch for gene expression. In addition, all of the mpl genes of M. penetrans HF-2 were identified using the whole-genome sequence data that has recently become available for this bacterium. There are at least 38 mpl genes in the M. penetrans HF-2 genome. Interestingly, most of these mpl genes possess invertible promoter-like sequences, similar to those of the pepIMP13 gene promoter. A model for the generation of surface antigenic variation by multiple promoter inversions is proposed.

Indexed as

Chromosome InversionPromoter Regions, GeneticAmino Acid SequenceAnimalsAntibodies, BacterialAntigenic VariationAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsBase SequenceGene Expression Regulation, BacterialHumansLipoproteinsMiceMolecular Sequence DataMycoplasma InfectionsAntibodies, BacterialAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsLipoproteinsP35 protein, bacteriaP42 protein, Mycoplasma penetrans

Identifiers

PMID12486060
PMCPMC141813
OpenAlexW2113567929

What OpenQuestion holds

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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.