Evidence map›Paper›PMID 17712020›Full record

ArticleGenome research2007

Identification and analysis of internal promoters in Caenorhabditis elegans operons.

Peiming Huang, Erin D Pleasance, Jason S Maydan, Rebecca Hunt-Newbury, Nigel J O'Neil, Allan Mah, David L Baillie, Marco A Marra, Donald G Moerman, Steven J M Jones

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed, 42 citations in OpenAlex.

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  6. TheGenetics · 2019
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  12. Transcriptional regulation of gene expression in C. elegans.WormBook : the online review of C. elegans biology · 2013
    Review
  13. Article
  14. Article
  15. Trans-splicing and operons in C. elegans.WormBook : the online review of C. elegans biology · 2012
    Review
  16. Article
  17. 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

10 authors at 3 institutions in 1 country.

Peiming HuangGenome Sciences Centre, BC Cancer Agency, Vancouver, British Columbia V5Z 1L3, Canada.
Erin D Pleasance
Jason S Maydan
Rebecca Hunt-Newbury
Nigel J O'Neil
Allan Mah
David L Baillie
Marco A Marra
Donald G Moerman
Steven J M Jones
BC Cancer Agency · CAUniversity of British Columbia · CASimon Fraser University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The current Caenorhabditis elegans genomic annotation has many genes organized in operons. Using directionally stitched promoterGFP methodology, we have conducted the largest survey to date on the regulatory regions of annotated C. elegans operons and identified 65, over 25% of those studied, with internal promoters. We have termed these operons "hybrid operons." GFP expression patterns driven from internal promoters differ in tissue specificity from expression of operon promoters, and serial analysis of gene expression data reveals that there is a lack of expression correlation between genes in many hybrid operons. The average length of intergenic regions with putative promoter activity in hybrid operons is larger than previous estimates for operons as a whole. Genes with internal promoters are more commonly involved in gene duplications and have a significantly lower incidence of alternative splicing than genes without internal promoters, although we have observed almost all trans-splicing patterns in these two distinct groups. Finally, internal promoter constructs are able to rescue lethal knockout phenotypes, demonstrating their necessity in gene regulation and survival. Our work suggests that hybrid operons are common in the C. elegans genome and that internal promoters influence not only gene organization and expression but also operon evolution.

Indexed as

OperonPromoter Regions, GeneticAlternative SplicingAnimalsAnimals, Genetically ModifiedCaenorhabditis elegansEvolution, MolecularGene DuplicationGene Expression ProfilingGenes, HelminthGenes, ReporterGenome, HelminthGenomicsGreen Fluorescent ProteinsRecombinant ProteinsGreen Fluorescent ProteinsRecombinant Proteins

Identifiers

PMID17712020
PMCPMC1987351
OpenAlexW2029643021

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.