Evidence map›Paper›PMID 34642752›Full record

ArticleNucleic acids research2021

Cooperative methylation of human tRNA3Lys at positions A58 and U54 drives the early and late steps of HIV-1 replication.

Hiroyuki Fukuda, Takeshi Chujo, Fan-Yan Wei, Sheng-Lan Shi, Mayumi Hirayama, Taku Kaitsuka, Takahiro Yamamoto, Hiroyuki Oshiumi, Kazuhito Tomizawa

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

25 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. tRNA modifications in viral replication.The Journal of biological chemistry · 2026
    Review
  3. Article
  4. The Secret Life of NJournal of molecular biology · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. A primer on tRNAs, tRNA-mFrontiers in cell and developmental biology · 2025
    Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. RNA modifying enzymes shape tRNA biogenesis and function.The Journal of biological chemistry · 2024
    Review
  17. Article
  18. Review
  19. Review
  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

9 authors at 3 institutions in 1 country.

Hiroyuki FukudaDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.ORCID 0000-0002-0812-1857
Takeshi ChujoDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.ORCID 0000-0003-2393-5776
Fan-Yan WeiDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.ORCID 0000-0002-4843-724X
Sheng-Lan ShiDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.
Mayumi HirayamaDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.
Taku KaitsukaDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.
Takahiro YamamotoDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.
Hiroyuki OshiumiDepartment of Immunology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.
Kazuhito TomizawaDepartment of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 860-8556, Japan.ORCID 0000-0002-5663-2627
Kumamoto University · JPFukuoka International University · JPTohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Retroviral infection requires reverse transcription, and the reverse transcriptase (RT) uses cellular tRNA as its primer. In humans, the TRMT6-TRMT61A methyltransferase complex incorporates N1-methyladenosine modification at tRNA position 58 (m1A58); however, the role of m1A58 as an RT-stop site during retroviral infection has remained questionable. Here, we constructed TRMT6 mutant cells to determine the roles of m1A in HIV-1 infection. We confirmed that tRNA3Lys m1A58 was required for in vitro plus-strand strong-stop by RT. Accordingly, infectivity of VSV-G pseudotyped HIV-1 decreased when the virus contained m1A58-deficient tRNA3Lys instead of m1A58-modified tRNA3Lys. In TRMT6 mutant cells, the global protein synthesis rate was equivalent to that of wild-type cells. However, unexpectedly, plasmid-derived HIV-1 expression showed that TRMT6 mutant cells decreased accumulation of HIV-1 capsid, integrase, Tat, Gag, and GagPol proteins without reduction of HIV-1 RNAs in cells, and fewer viruses were produced. Moreover, the importance of 5,2'-O-dimethyluridine at U54 of tRNA3Lys as a second RT-stop site was supported by conservation of retroviral genome-tRNALys sequence-complementarity, and TRMT6 was required for efficient 5-methylation of U54. These findings illuminate the fundamental importance of tRNA m1A58 modification in both the early and late steps of HIV-1 replication, as well as in the cellular tRNA modification network.

Indexed as

RNA Processing, Post-TranscriptionalVirus ReplicationAnimalsHEK293 CellsHeLa CellsHIV-1HumansMembrane ProteinsMethylationMiceMutationRNA, Transfer, LysCRLS1 protein, humanMembrane ProteinsRNA, Transfer, Lys

Identifiers

PMID34642752
PMCPMC8599865
OpenAlexW3207570619

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.