Evidence map›Paper›PMID 19762559›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2010

Caenorhabditis elegans P5B-type ATPase CATP-5 operates in polyamine transport and is crucial for norspermidine-mediated suppression of RNA interference.

Alexander Heinick, Katja Urban, Stefan Roth, Danica Spies, Frank Nunes, Otto Phanstiel, Eva Liebau, Kai Lüersen

Open access · bronzeAbstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

26 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Polyamine homeostasisbioRxiv : the preprint server for biology · 2025
    Article
  6. Review
  7. Article
  8. ATP13A2 (PARK9) and basal ganglia function.Frontiers in neurology · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. ATP13A2-mediated endo-lysosomal polyamine export counters mitochondrial oxidative stress.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Article
  14. Article
  15. 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

8 authors at 3 institutions in 3 countries.

Alexander HeinickInstitute for Animal Physiology, Westfalian Wilhelms University, Muenster, Germany.
Katja Urban
Stefan Roth
Danica Spies
Frank Nunes
Otto Phanstiel
Eva Liebau
Kai Lüersen
University of Münster · DEInstitute of Pharmacology · CZUniversity of Central Florida · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Physiological polyamines are required in various biological processes. In the current study, we used norspermidine, a structural analog of the natural polyamine spermidine, to investigate polyamine uptake in the model organism Caenorhabditis elegans. Norspermidine was found to have two remarkable effects: it is toxic for the nematode, without affecting its food, Escherichia coli; and it hampers RNA interference. By characterizing a norspermidine-resistant C. elegans mutant strain that has been isolated in a genetic screen, we demonstrate that both effects, as well as the uptake of a fluorescent polyamine-conjugate, depend on the transporter protein CATP-5, a novel P(5B)-type ATPase. To our knowledge, CATP-5 represents the first P(5)-type ATPase that is associated with the plasma membrane, being expressed in the apical membrane of intestinal cells and the excretory cell. Moreover, genetic interaction studies using C. elegans polyamine synthesis mutants indicate that CATP-5 has a function redundant to polyamine synthesis and link reduced polyamine levels to retarded postembryonic development, reduced brood size, shortened life span, and small body size. We suggest that CATP-5 represents a crucial component of the pharmacologically important polyamine transport system, the molecular nature of which has not been identified so far in metazoa.

Indexed as

Adenosine TriphosphatasesAmino Acid SequenceAnimalsAnimals, Genetically ModifiedBiological Transport, ActiveCaenorhabditis elegansCaenorhabditis elegans ProteinsEscherichia coliGene ExpressionGenes, HelminthMembrane ProteinsModels, MolecularMolecular Sequence DataPolyaminesRecombinant ProteinsRNA InterferenceAdenosine TriphosphatasesCaenorhabditis elegans ProteinsCATP-5 protein, C elegansMembrane ProteinsnorspermidinePolyaminesRecombinant ProteinsSpermidine

Identifiers

PMID19762559
PMCPMC2797033
OpenAlexW2080144615

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.