Evidence map›Paper›PMID 11780628›Full record

ArticleRNA (New York, N.Y.)2001

Increased sensitivity to protein synthesis inhibitors in cells lacking tmRNA.

J de la Cruz, A Vioque

Open access · greenAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

29 citing papers in PubMed, 57 citations in OpenAlex.

  1. Collided ribosomes are rescued by the endonuclease Rae1 andbioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Microorganisms · 2021
    Review
  6. Gene Expression Profiling ofFrontiers in microbiology · 2021
    Article
  7. Article
  8. Article
  9. HflXr, a homolog of a ribosome-splitting factor, mediates antibiotic resistance.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The tmRNA ribosome-rescue system.Advances in protein chemistry and structural 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

2 authors at 1 institution in 1 country.

J de la CruzInstituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla-CSIC, Americo Vespucio s/n, Sevilla, Spain.
A Vioque
Instituto de Bioquímica Vegetal y Fotosíntesis · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

tmRNA (also known as SsrA or 10Sa RNA) is involved in a trans-translation reaction that contributes to the recycling of stalled ribosomes at the 3' end of an mRNA lacking a stop codon or at an internal mRNA cluster of rare codons. Inactivation of the ssrA gene in most bacteria results in viable cells bearing subtle phenotypes, such as temperature-sensitive growth. Herein, we report on the functional characterization of the ssrA gene in the cyanobacterium Synechocystis sp. strain PCC6803. Deletion of the ssrA gene in Synechocystis resulted in viable cells with a growth rate identical to wild-type cells. However, null ssrA cells (deltassrA) were not viable in the presence of the protein synthesis inhibitors chloramphenicol, lincomycin, spiramycin, tylosin, erythromycin, and spectinomycin at low doses that do not significantly affect the growth of wild-type cells. Sensitivity of deltassrA cells similar to wild-type cells was observed with kasugamycin, fusidic acid, thiostrepton, and puromycin. Antibiotics unrelated to protein synthesis, such as ampicillin or rifampicin, had no differential effect on the deltassrA strain. Furthermore, deletion of the ssrA gene is sufficient to impair global protein synthesis when chloramphenicol is added at sublethal concentrations for the wild-type strain. These results indicate that ribosomes stalled by some protein synthesis inhibitors can be recycled by tmRNA. In addition, this suggests that the first elongation cycle with tmRNA, which incorporates a noncoded alanine on the growing peptide chain, may have mechanistic differences with the normal elongation cycles that bypasses the block produced by these specific antibiotics. tmRNA inactivation could be an useful therapeutic target to increase the sensitivity of pathogenic bacteria against antibiotics.

Indexed as

ChloramphenicolCyanobacteriaDose-Response Relationship, DrugGenes, BacterialMicrobial Sensitivity TestsMutationProtein BiosynthesisProtein Synthesis InhibitorsRNA, BacterialChloramphenicolProtein Synthesis InhibitorsRNA, BacterialtmRNA

Identifiers

PMID11780628
PMCPMC1370211
OpenAlexW2113975090

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.