Evidence map›Paper›PMID 20622060›Full record

ArticleJournal of bacteriology2010

Transcriptional regulation of the heterocyst patterning gene patA from Anabaena sp. strain PCC 7120.

Shirley S Young-Robbins, Douglas D Risser, Jennifer R Moran, Robert Haselkorn, Sean M Callahan

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

14 citing papers in PubMed, 33 citations in OpenAlex.

  1. Distinct cell division features inJournal of bacteriology · 2025
    Review
  2. Article
  3. A proteolytic pathway coordinates cell division and heterocyst differentiation in the cyanobacteriumProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Journal of bacteriology · 2019
    Article
  9. Formation and maintenance of nitrogen-fixing cell patterns in filamentous cyanobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  10. Article
  11. Biased inheritance of the protein PatN frees vegetative cells to initiate patterned heterocyst differentiation.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  12. Article
  13. Article
  14. 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 2 institutions in 1 country.

Shirley S Young-RobbinsDepartment of Microbiology, University of Hawaii, Honolulu, Hawaii 96822, USA.
Douglas D Risser
Jennifer R Moran
Robert Haselkorn
Sean M Callahan
University of Hawaii System · USUniversity of Chicago · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The filamentous cyanobacterium Anabaena sp. strain PCC 7120 forms a periodic pattern of nitrogen-fixing heterocysts when grown in the absence of combined nitrogen. PatA is necessary for proper patterning of heterocysts along filaments. In this study, apparent transcriptional start points (tsps) were identified at nucleotides -305, -614, and -645 relative to the translational start site (-305, -614, and -645 tsps). Transcriptional reporter fusions were used to show that transcription from the -305 tsp was induced in all cells of filaments in response to nitrogen deprivation, required hetR for induction, and increased in a patA mutant. Transcription from -614/-645 tsp reporter fusions was spatially regulated and occurred primarily in cells that would become heterocysts. Complementation of a patA mutant strain by alleles encoding substitutions in, or deletion of, the putative phosphoacceptor C-terminal domain indicates that the PATAN domain can function independently of the C-terminal domain of PatA. Localization of a ring of PatA-GFP at sites of cell division, as well as the formation of enlarged cells with altered cell morphology when patA was overexpressed, suggests that PatA may participate in cell division.

Indexed as

Gene Expression Regulation, BacterialAnabaenaBacterial ProteinsNucleic Acid Amplification TechniquesPolymerase Chain ReactionPromoter Regions, GeneticTranscription, GeneticBacterial ProteinsPatA protein, Anabaena

Identifiers

PMID20622060
PMCPMC2937400
OpenAlexW2023665556

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.