Evidence map›Paper›PMID 34324497›Full record

ArticlePLoS genetics2021

The 3'tsRNAs are aminoacylated: Implications for their biogenesis.

Ziwei Liu, Hak Kyun Kim, Jianpeng Xu, Yuqing Jing, Mark A Kay

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 22% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Unlocking the role of tRNA-derived fragments in shaping breast cancer signaling.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  4. Article
  5. Emerging roles of transfer RNA fragments in the CNS.Brain : a journal of neurology · 2025
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. The life and times of a tRNA.RNA (New York, N.Y.) · 2023
    Review
  14. Emerging roles of tRNA-derived small RNAs in cancer biology.Experimental & molecular medicine · 2023
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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

5 authors at 1 institution in 1 country.

Ziwei LiuDepartment of Pediatrics, Stanford University, Stanford, California, United States of America.ORCID 0000-0003-0143-8824
Hak Kyun KimDepartment of Pediatrics, Stanford University, Stanford, California, United States of America.
Jianpeng XuDepartment of Pediatrics, Stanford University, Stanford, California, United States of America.
Yuqing JingDepartment of Pediatrics, Stanford University, Stanford, California, United States of America.ORCID 0000-0002-9701-8228
Mark A KayDepartment of Pediatrics, Stanford University, Stanford, California, United States of America.ORCID 0000-0002-2799-2615
Stanford University · US

Funding

The role of small RNA derived tRNAs in gene regulation: Mechanism and Therapeutic ApplicationsR01DK114483 · NIDDK · STANFORD UNIVERSITY · PI KAY, MARK A · 2017 to 2020
$2.0M
NIDDK NIH HHS R01 DK114483
6 · The paper itself

Abstract

Emerging evidence indicates that tRNA-derived small RNAs (tsRNAs) are involved in fine-tuning gene expression and become dysregulated in various cancers. We recently showed that the 22nt LeuCAG3´tsRNA from the 3´ end of tRNALeu is required for efficient translation of a ribosomal protein mRNA and ribosome biogenesis. Inactivation of this 3´tsRNA induced apoptosis in rapidly dividing cells and suppressed the growth of a patient-derived orthotopic hepatocellular carcinoma in mice. The mechanism involved in the generation of the 3´tsRNAs remains elusive and it is unclear if the 3´-ends of 3´tsRNAs are aminoacylated. Here we report an enzymatic method utilizing exonuclease T to determine the 3´charging status of tRNAs and tsRNAs. Our results showed that the LeuCAG3´tsRNA, and two other 3´tsRNAs are fully aminoacylated. When the leucyl-tRNA synthetase (LARS1) was inhibited, there was no change in the total tRNALeu concentration but a reduction in both the charged tRNALeu and LeuCAG3´tsRNA, suggesting the 3´tsRNAs are fully charged and originated solely from the charged mature tRNA. Altering LARS1 expression or the expression of various tRNALeu mutants were also shown to affect the generation of the LeuCAG3´tsRNA further suggesting they are created in a highly regulated process. The fact that the 3´tsRNAs are aminoacylated and their production is regulated provides additional insights into their importance in post-transcriptional gene regulation that includes coordinating the production of the protein synthetic machinery.

Indexed as

Amino AcidsGene ExpressionGene Expression RegulationHeLa CellsHumansLeucineRibosomal ProteinsRNA Processing, Post-TranscriptionalRNA, Small UntranslatedRNA, TransferTransfer RNA AminoacylationAmino AcidsLeucineRibosomal ProteinsRNA, Small UntranslatedRNA, Transfer

Identifiers

PMID34324497
PMCPMC8354468
OpenAlexW3184895104

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.