Evidence map›Paper›PMID 9826362›Full record

ArticleInfection and immunity1998

Expression of the pMGA genes of Mycoplasma gallisepticum is controlled by variation in the GAA trinucleotide repeat lengths within the 5' noncoding regions.

M D Glew, N Baseggio, P F Markham, G F Browning, I D Walker

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 70 citations in OpenAlex.

  1. Immune Evasion ofInternational journal of molecular sciences · 2024
    Review
  2. Variable Lipoprotein Hemagglutinin A Gene (Infection and immunity · 2018
    Article
  3. Comparative Analysis ofFrontiers in genetics · 2018
    Article
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  5. Article
  6. Article
  7. Article
  8. Article
  9. Simple sequence repeats in prokaryotic genomes.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  10. Article
  11. Article
  12. Article
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  14. Article
  15. Article
  16. Article
  17. Transcription in Mycoplasma pneumoniae.Nucleic acids research · 2000
    Article
  18. 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

5 authors at 1 institution in 1 country.

M D GlewDepartment of Veterinary Science, The University of Melbourne, Parkville, Victoria, Australia 3052.
N Baseggio
P F Markham
G F Browning
I D Walker
University of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We analyzed the segment of DNA which contains the expressed pMGA gene from one strain of Mycoplasma gallisepticum in normal (strain S6) cells and in cells in which pMGA1.1 gene expression had ceased as a consequence of in vitro culture in the presence of pMGA1. 1-specific antibodies. Sequence analysis of isolates lacking pMGA1.1 expression revealed that this gene, which is typically expressed, exhibited sequence changes within a region 5' to its promoter. Specifically, pMGA1.1(+) cells contained a (GAA)12 motif upstream of the promoter, whereas in pMGA1.1(-) cells the corresponding region contained a (GAA)10 motif; when such cells were grown in medium no longer containing pMGA-specific antibodies, pMGA1.1 was reexpressed and the 5' (GAA)12 motif was restored. Two other genes, pMGA1.9 and pMGA1.2, were also shown to acquire a (GAA)12 motif in clones which expressed these genes. The results imply the evolution by the pMGA genes of M. gallisepticum of a novel transcriptional requirement which facilitates rapid and reversible switches in the pMGA expression pattern.

Indexed as

Gene Expression Regulation, BacterialTrinucleotide Repeat ExpansionBacterial ProteinsBase SequenceGene DosageGenes, BacterialLipoproteinsMolecular Sequence DataMycoplasmaPromoter Regions, GeneticBacterial ProteinsLipoproteinsM9 protein, Mycoplasma gallisepticum

Identifiers

PMID9826362
PMCPMC108738
OpenAlexW1949956696

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.