Evidence map›Paper›PMID 19656801›Full record

ArticleGenes & development2009

Sequence, biogenesis, and function of diverse small RNA classes bound to the Piwi family proteins of Tetrahymena thermophila.

Mary T Couvillion, Suzanne R Lee, Brandon Hogstad, Colin D Malone, Leath A Tonkin, Ravi Sachidanandam, Gregory J Hannon, Kathleen Collins

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing 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

60 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Regulation of insect behavior by non-coding RNAs.Science China. Life sciences · 2024
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. PIWI-Directed DNA Elimination for Tetrahymena Genetics.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  12. Distinct Cell-specific Roles of NOX2 and MyD88 in Epileptogenesis.Frontiers in cell and developmental biology · 2022
    Review
  13. Review
  14. Article
  15. Review
  16. Transfer RNA-Derived Small RNAs: Another Layer of Gene Regulation and Novel Targets for Disease Therapeutics.Molecular therapy : the journal of the American Society of Gene Therapy · 2020
    Review
  17. Review
  18. Review
  19. Action mechanisms and research methods of tRNA-derived small RNAs.Signal transduction and targeted therapy · 2020
    Review
  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

8 authors at 3 institutions in 1 country.

Mary T CouvillionDepartment of Molecular and Cell Biology, University of California at Berkeley, Berkeley, California 94720, USA.
Suzanne R Lee
Brandon Hogstad
Colin D Malone
Leath A Tonkin
Ravi Sachidanandam
Gregory J Hannon
Kathleen Collins
University of California, Berkeley · USCold Spring Harbor Laboratory · USHoward Hughes Medical Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PAZ/PIWI domain (PPD) proteins carrying small RNAs (sRNAs) function in gene and genome regulation. The ciliate Tetrahymena thermophila encodes numerous PPD proteins exclusively of the Piwi clade. We show that the three Tetrahymena Piwi family proteins (Twis) preferentially expressed in growing cells differ in their genetic essentiality and subcellular localization. Affinity purification of all eight distinct Twi proteins revealed unique properties of their bound sRNAs. Deep sequencing of Twi-bound and total sRNAs in strains disrupted for various silencing machinery uncovered an unanticipated diversity of 23- to 24-nt sRNA classes in growing cells, each with distinct genetic requirements for accumulation. Altogether, Twis distinguish sRNAs derived from loci of pseudogene families, three types of DNA repeats, structured RNAs, and EST-supported loci with convergent or paralogous transcripts. Most surprisingly, Twi7 binds complementary strands of unequal length, while Twi10 binds a specific permutation of the guanosine-rich telomeric repeat. These studies greatly expand the structural and functional repertoire of endogenous sRNAs and RNPs.

Indexed as

AnimalsExpressed Sequence TagsGene Expression Regulation, DevelopmentalMicroRNAsMicrosatellite RepeatsMolecular Sequence DataProtein BindingProtozoan ProteinsRNA, ProtozoanSequence Analysis, RNATetrahymena thermophilaTwist-Related Protein 1MicroRNAsProtozoan ProteinsRNA, ProtozoanTwist-Related Protein 1

Identifiers

PMID19656801
PMCPMC2751968
OpenAlexW2099766566

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.