Evidence map›Paper›PMID 19638370›Full record

ArticleGenes & development2009

Caught at its own game: regulatory small RNA inactivated by an inducible transcript mimicking its target.

Nara Figueroa-Bossi, Martina Valentini, Laurette Malleret, Francesca Fiorini, Lionello Bossi

Erratum issuedOpen 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. An erratum has been issued. Cited by 129 papers.

0numbers the graph read from it
0cells of the map it votes in
129citing 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

129 citing papers in PubMed, 225 citations in OpenAlex.

  1. Bacterial small regulatory RNAs.Nature reviews. Microbiology · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Origin and adaptive evolutionary trajectory of the 3' UTR-derived sRNA UhpU in Enterobacteriaceae.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Article
  9. Competition for Hfq drives kinetic selection of mRNA targets byProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. An RNase III-processed sRNA coordinates sialic acid metabolism ofProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. An acetyltranferase moonlights as a regulator of the RNA binding repertoire of the RNA chaperone Hfq inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Article
  18. Review
  19. Article
  20. Article

69 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Nara Figueroa-BossiCentre de Génétique Moléculaire, Centre National de la Recherche Scientifique (CNRS), Gif-sur-Yvette 91198, France.
Martina Valentini
Laurette Malleret
Francesca Fiorini
Lionello Bossi
Centre de Génétique Moléculaire · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A relevant, yet little recognized feature of antisense regulation is the possibility of switching roles between regulatory and regulated RNAs. Here we show that induction of a Salmonella gene relies on the conversion of a small RNA from effector to regulatory target. The chiP gene (formerly ybfM), identified and characterized in the present study, encodes a conserved enterobacterial chitoporin required for uptake of chitin-derived oligosaccharides. In the absence of inducer, chiP is kept silent by the action of a constitutively made small RNA, ChiX (formerly SroB, RybC), which pairs with a sequence at the 5' end of chiP mRNA. Silencing is relieved in the presence of chitooligosaccharides due to the accumulation of an RNA that pairs with ChiX and promotes its degradation. Anti-ChiX RNA originates from an intercistronic region of the chb operon, which comprises genes for chitooligosaccharide metabolism and whose transcription is activated in the presence of these sugars. We present evidence suggesting that the chb RNA destabilizes ChiX sRNA by invading the stem of its transcription terminator hairpin. Overall, our findings blur the distinction between effector and target in sRNA regulation, raising the possibility that some of the currently defined targets could actually be inhibitors of sRNA function.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsBase SequenceDNA Mutational AnalysisHost Factor 1 ProteinMicroRNAsMolecular Sequence DataMutationPorinsRNA StabilitySalmonellaBacterial ProteinsHost Factor 1 ProteinMicroRNAsPorins

Identifiers

PMID19638370
PMCPMC2751969
OpenAlexW2131337489

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.