Evidence map›Paper›PMID 16186487›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2005

A bacterial group II intron-encoded reverse transcriptase localizes to cellular poles.

Junhua Zhao, Alan M Lambowitz

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. mSphere · 2023
    Article
  2. bioRxiv : the preprint server for biology · 2023
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Enhanced group II intron retrohoming in magnesium-deficient Escherichia coli via selection of mutations in the ribozyme core.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. The selective value of bacterial shape.Microbiology and molecular biology reviews : MMBR · 2006
    Review
  13. Profile of Alan M. Lambowitz.Proceedings of the National Academy of Sciences of the United States of America · 2006
    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

2 authors at 1 institution in 1 country.

Junhua ZhaoInstitute for Cellular and Molecular Biology, Department of Chemistry and Biochemistry, and Section of Molecular Genetics and Microbiology, University of Texas, Austin, TX 78712, USA.
Alan M Lambowitz
The University of Texas at Austin · US

Funding

RETROPLASMID AND GROUP II INTRON REVERSE TRANSCRIPTASESR01GM037949 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI LAMBOWITZ, ALAN M. · 1986 to 2019
$8.6M
NIGMS NIH HHS GM37949NIGMS NIH HHS R01 GM037949
6 · The paper itself

Abstract

The Lactococcus lactis Ll.LtrB group II intron encodes a reverse transcriptase (LtrA protein) that binds the intron RNA to promote RNA splicing and intron mobility. Here, we used LtrA-GFP fusions and immunofluorescence microscopy to show that LtrA localizes to cellular poles in Escherichia coli and Lactococcus lactis. This polar localization occurs with or without coexpression of Ll.LtrB intron RNA, is observed over a wide range of cellular growth rates and expression levels, and is independent of replication origin function. The same localization pattern was found for three nonoverlapping LtrA subsegments, possibly reflecting dependence on common redundant signals and/or protein physical properties. When coexpressed in E. coli, LtrA interferes with the polar localization of the Shigella IcsA protein, which mediates polarized actin tail assembly, suggesting competition for a common localization determinant. The polar localization of LtrA could account for the preferential insertion of the Ll.LtrB intron in the origin and terminus regions of the E. coli chromosome, may facilitate access to exposed DNA in these regions, and could potentially link group II intron mobility to the host DNA replication and/or cell division machinery.

Indexed as

Bacterial ProteinsDNA-Binding ProteinsDNA ReplicationEscherichia coliGreen Fluorescent ProteinsIntronsLactococcus lactisMicroscopy, FluorescenceRecombinant Fusion ProteinsRNA-Directed DNA PolymeraseTranscription FactorsBacterial ProteinsDNA-Binding ProteinsGreen Fluorescent ProteinsLtrA protein, Lactococcus lactisRecombinant Fusion ProteinsRNA-Directed DNA PolymeraseTranscription FactorsvirG protein, Shigella flexneri

Identifiers

PMID16186487
PMCPMC1283441
OpenAlexW2168960929

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.