Evidence map›Paper›PMID 25389176›Full record

ArticlemBio2014

Release of nonstop ribosomes is essential.

Heather A Feaga, Patrick H Viollier, Kenneth C Keiler

Open access · goldAbstract read
In one paragraph

Article in mBio, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

27 citing papers in PubMed, 43 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. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Microorganisms · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Ribosome Rescue Pathways in Bacteria.Frontiers in microbiology · 2021
    Review
  16. Article
  17. Article
  18. Article
  19. Regulated Proteolysis in Bacteria: Caulobacter.Annual review of genetics · 2016
    Review
  20. Molecular phenotyping of infection-associated small non-coding RNAs.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
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

3 authors at 2 institutions in 2 countries.

Heather A FeagaDepartment of Biochemistry & Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania, USA.
Patrick H ViollierDepartment of Microbiology and Molecular Medicine, University of Geneva, Geneva, Switzerland.
Kenneth C KeilerDepartment of Biochemistry & Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania, USA kkeiler@psu.edu.
Pennsylvania State University · USUniversity of Geneva · CH

Funding

The Role of tmRNA in development of C. crescentusR01GM068720 · NIGMS · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI KEILER, KENNETH C · 2004 to 2014
$2.3M
NIGMS NIH HHS GM68720NIGMS NIH HHS R01 GM068720
6 · The paper itself

Abstract

unlabelledBacterial ribosomes frequently translate to the 3' end of an mRNA without terminating at a stop codon. Almost all bacteria use the transfer-messenger RNA (tmRNA)-based trans-translation pathway to release these "nonstop" ribosomes and maintain protein synthesis capacity. trans-translation is essential in some species, but in others, such as Caulobacter crescentus, trans-translation can be inactivated. To determine why trans-translation is dispensable in C. crescentus, a Tn-seq screen was used to identify genes that specifically alter growth in cells lacking ssrA, the gene encoding tmRNA. One of these genes, CC1214, was essential in ΔssrA cells. Purified CC1214 protein could release nonstop ribosomes in vitro. CC1214 is a homolog of the Escherichia coli ArfB protein, and using the CC1214 sequence, ArfB homologs were identified in the majority of bacterial phyla. Most species in which ssrA has been deleted contain an ArfB homolog, suggesting that release of nonstop ribosomes may be essential in most or all bacteria. IMPORTANCE: Genes that are conserved across large phylogenetic distances are expected to confer a selective advantage. The genes required for trans-translation, ssrA and smpB, have been found in >99% of sequenced bacterial genomes, suggesting that they are broadly important. However, these genes can be deleted in some species without loss of viability. The identification and characterization of C. crescentus ArfB reveals why trans-translation is not essential in C. crescentus and suggests that many other bacteria are likely to use ArfB to survive when trans-translation is compromised.

Indexed as

Protein BiosynthesisCaulobacter crescentusGene DeletionMutagenesis, InsertionalRibosomesRNA, MessengerSequence Analysis, DNARNA, Messenger

Identifiers

PMID25389176
PMCPMC4235212
OpenAlexW2154309333

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.