Evidence map›Paper›PMID 19933153›Full record

ArticleGenes & development2009

A novel class of small RNAs: tRNA-derived RNA fragments (tRFs).

Yong Sun Lee, Yoshiyuki Shibata, Ankit Malhotra, Anindya Dutta

Open 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. Cited by 750 papers.

0numbers the graph read from it
0cells of the map it votes in
750citing 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

750 citing papers in PubMed, 1,206 citations in OpenAlex.

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  15. RNA regulation in plants.Science China. Life sciences · 2026
    Review
  16. Review
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  18. Article
  19. Enhancement of Therapeutic mRNA Translation in Cellular Stress Conditions.International journal of molecular sciences · 2026
    Review
  20. Article

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

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

4 authors at 1 institution in 1 country.

Yong Sun LeeDepartment of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia 22908, USA.
Yoshiyuki Shibata
Ankit Malhotra
Anindya Dutta
University of Virginia · US

Funding

MicroRNAs in differentiation of muscleR01AR053948 · NIAMS · UNIVERSITY OF VIRGINIA · PI DUTTA, ANINDYA · 2007 to 2011
$1.7M
NIAMS NIH HHS R01 AR053948
6 · The paper itself

Abstract

New types of small RNAs distinct from microRNAs (miRNAs) are progressively being discovered in various organisms. In order to discover such novel small RNAs, a library of 17- to 26-base-long RNAs was created from prostate cancer cell lines and sequenced by ultra-high-throughput sequencing. A significant number of the sequences are derived from precise processing at the 5' or 3' end of mature or precursor tRNAs to form three series of tRFs (tRNA-derived RNA fragments): the tRF-5, tRF-3, and tRF-1 series. These sequences constitute a class of short RNAs that are second most abundant to miRNAs. Northern hybridization, quantitative RT-PCR, and splinted ligation assays independently measured the levels of at least 17 tRFs. To demonstrate the biological importance of tRFs, we further investigated tRF-1001, derived from the 3' end of a Ser-TGA tRNA precursor transcript that is not retained in the mature tRNA. tRF-1001 is expressed highly in a wide range of cancer cell lines but much less in tissues, and its expression in cell lines was tightly correlated with cell proliferation. siRNA-mediated knockdown of tRF-1001 impaired cell proliferation with the specific accumulation of cells in G2, phenotypes that were reversed specifically by cointroducing a synthetic 2'-O-methyl tRF-1001 oligoribonucleotide resistant to the siRNA. tRF-1001 is generated in the cytoplasm by tRNA 3'-endonuclease ELAC2, a prostate cancer susceptibility gene. Our data suggest that tRFs are not random by-products of tRNA degradation or biogenesis, but an abundant and novel class of short RNAs with precise sequence structure that have specific expression patterns and specific biological roles.

Indexed as

Cell Line, TumorCell ProliferationCloning, MolecularCytoplasmGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMicroRNAsMolecular Sequence DataNeoplasm ProteinsRNA, TransferELAC2 protein, humanMicroRNAsNeoplasm ProteinsRNA, Transfer

Identifiers

PMID19933153
PMCPMC2779758
OpenAlexW2106039274

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.