Evidence map›Paper›PMID 22287637›Full record

ArticleNucleic acids research2012

Polyadenylation helps regulate functional tRNA levels in Escherichia coli.

Bijoy K Mohanty, Valerie F Maples, Sidney R Kushner

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

36 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Genome-wide Screening of the Escherichia coli Keio Knockout Collection Identifies Genetic Determinants of Epetraborole Hypersusceptibility.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Regulation of mRNA decay inCritical reviews in biochemistry and molecular biology · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Acquisition ofMicrobial genomics · 2021
    Article
  16. Accurate characterization ofRNA biology · 2021
    Article
  17. Article
  18. Article
  19. Bacterial ribonucleases and their roles in RNA metabolism.Critical reviews in biochemistry and molecular biology · 2019
    Review
  20. 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 1 institution in 1 country.

Bijoy K MohantyDepartment of Genetics, University of Georgia, Athens, GA 30602, USA.
Valerie F Maples
Sidney R Kushner
University of Georgia · US

Funding

Analysis of E. coli ribonucleases and RNA metabolismR01GM081554 · NIGMS · UNIVERSITY OF GEORGIA · PI KUSHNER, SIDNEY R. · 2008 to 2020
$3.8M
The Role of Polyadenylation in RNA TurnoverR01GM057220 · NIGMS · UNIVERSITY OF GEORGIA (UGA) · PI KUSHNER, SIDNEY R. · 1999 to 2012
$3.5M
The Role of Polyadenylation in RNA TurnoverR56GM057220 · NIGMS · UNIVERSITY OF GEORGIA · PI KUSHNER, SIDNEY R. · 2007 to 2007
$348k
NIGMS NIH HHS GM57220NIGMS NIH HHS GM81554
6 · The paper itself

Abstract

Here we demonstrate a new regulatory mechanism for tRNA processing in Escherichia coli whereby RNase T and RNase PH, the two primary 3' → 5' exonucleases involved in the final step of 3'-end maturation, compete with poly(A) polymerase I (PAP I) for tRNA precursors in wild-type cells. In the absence of both RNase T and RNase PH, there is a >30-fold increase of PAP I-dependent poly(A) tails that are ≤10 nt in length coupled with a 2.3- to 4.2-fold decrease in the level of aminoacylated tRNAs and a >2-fold decrease in growth rate. Only 7 out of 86 tRNAs are not regulated by this mechanism and are also not substrates for RNase T, RNase PH or PAP I. Surprisingly, neither PNPase nor RNase II has any effect on tRNA poly(A) tail length. Our data suggest that the polyadenylation of tRNAs by PAP I likely proceeds in a distributive fashion unlike what is observed with mRNAs.

Indexed as

PolyadenylationEscherichia coliEscherichia coli ProteinsExoribonucleasesMutationPoly APolynucleotide AdenylyltransferasePolyribonucleotide NucleotidyltransferaseRNA PrecursorsRNA, Ribosomal, 5SRNA, TransferTransfer RNA AminoacylationEscherichia coli Proteinsexoribonuclease IIExoribonucleasesexoribonuclease TpcnB protein, E coliPoly APolynucleotide AdenylyltransferasePolyribonucleotide Nucleotidyltransferaseribonuclease PHRNA PrecursorsRNA, Ribosomal, 5SRNA, Transfer

Identifiers

PMID22287637
PMCPMC3378859
OpenAlexW2152823398

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.