Evidence map›Paper›PMID 15375122›Full record

ArticleJournal of bacteriology2004

patS minigenes inhibit heterocyst development of Anabaena sp. strain PCC 7120.

Xiaoqiang Wu, Duan Liu, Martin H Lee, James W Golden

Abstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. An amidase is required for proper intercellular communication in the filamentous cyanobacteriumProceedings of the National Academy of Sciences of the United States of America · 2017
    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. Article
  12. Structures of complexes comprised of Fischerella transcription factor HetR with Anabaena DNA targets.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Cyanobacterial heterocysts.Cold Spring Harbor perspectives in biology · 2010
    Review
  18. Review
  19. Genetic and cytological evidence that heterocyst patterning is regulated by inhibitor gradients that promote activator decay.Proceedings of the National Academy of Sciences of the United States of America · 2009
    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

4 authors.

Xiaoqiang WuDepartment of Biology, Texas A&M University, College Station, Texas 77843-3258, USA.
Duan Liu
Martin H Lee
James W Golden

Funding

Regulation of Cyanobacterial Multicellular DevelopmentR01GM036890 · NIGMS · TEXAS A&M UNIVERSITY SYSTEM · PI GOLDEN, JAMES WILLIAM · 1986 to 2007
$2.0M
NIGMS NIH HHS GM36890NIGMS NIH HHS R01 GM036890
6 · The paper itself

Abstract

The patS gene encodes a small peptide that is required for normal heterocyst pattern formation in the cyanobacterium Anabaena sp. strain PCC 7120. PatS is proposed to control the heterocyst pattern by lateral inhibition. patS minigenes were constructed and expressed by different developmentally regulated promoters to gain further insight into PatS signaling. patS minigenes patS4 to patS8 encode PatS C-terminal 4 (GSGR) to 8 (CDERGSGR) oligopeptides. When expressed by P(petE), P(patS), or P(rbcL) promoters, patS5 to patS8 inhibited heterocyst formation but patS4 did not. In contrast to the full-length patS gene, P(hepA)-patS5 failed to restore a wild-type pattern in a patS null mutant, indicating that PatS-5 cannot function in cell-to-cell signaling if it is expressed in proheterocysts. To establish the location of the PatS receptor, PatS-5 was confined within the cytoplasm as a gfp-patS5 fusion. The green fluorescent protein GFP-PatS-5 fusion protein inhibited heterocyst formation. Similarly, full-length PatS with a C-terminal hexahistidine tag inhibited heterocyst formation. These data indicate that the PatS receptor is located in the cytoplasm, which is consistent with recently published data indicating that HetR is a PatS target. We speculated that overexpression of other Anabaena strain PCC 7120 RGSGR-encoding genes might show heterocyst inhibition activity. In addition to patS and hetN, open reading frame (ORF) all3290 and an unannotated ORF, orf77, encode an RGSGR motif. Overexpression of all3290 and orf77 under the control of the petE promoter inhibited heterocyst formation, indicating that the RGSGR motif can inhibit heterocyst development in a variety of contexts.

Indexed as

Amino Acid MotifsAnabaenaBacterial ProteinsCopperPromoter Regions, GeneticBacterial ProteinsCopperPatS protein, Anabaena

Identifiers

PMID15375122
PMCPMC516582

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.