Evidence map›Paper›PMID 12088148›Full record

ArticleRNA (New York, N.Y.)2002

Modification of the universally unmodified uridine-33 in a mitochondria-imported edited tRNA and the role of the anticodon arm structure on editing efficiency.

Pamela F Crain, Juan D Alfonzo, Jef Rozenski, Stephen T Kapushoc, James A McCloskey, Larry Simpson

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

29 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. From canonical to modified nucleotides: balancing translation and metabolism.Critical reviews in biochemistry and molecular biology · 2020
    Review
  6. Naturally occurring modified ribonucleosides.Wiley interdisciplinary reviews. RNA · 2020
    Review
  7. The single CCA-adding enzyme ofThe Journal of biological chemistry · 2020
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. tRNA biology in mitochondria.International journal of molecular sciences · 2015
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  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

6 authors at 3 institutions in 2 countries.

Pamela F CrainDepartment of Medicinal Chemistry, University of Utah, Salt Lake City 84112, USA.
Juan D Alfonzo
Jef Rozenski
Stephen T Kapushoc
James A McCloskey
Larry Simpson
University of California, Los Angeles · USUniversity of Utah · USRega Institute for Medical Research · BE

Funding

UTAH REGIONAL CANCER CENTERP30CA042014 · NCI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Jared P Rutter · 1986 to 2026
$72.6M
STRUCTURAL STUDIES OF NUCLEIC ACID CONSTITUENTSR01GM029812 · NIGMS · UNIVERSITY OF UTAH · PI MC CLOSKEY, JAMES A · 1985 to 2006
$2.5M
NCI NIH HHS P30CA42014NIGMS NIH HHS 01GM29812
6 · The paper itself

Abstract

Editing of tRNA has a wide phylogenetic distribution among eukaryotes and in some cases serves to expand the decoding capacity of the target tRNA. We previously described C-to-U editing of the wobble position of the imported tRNA(Trp) in Leishmania mitochondria, which is essential for decoding UGA codons as tryptophan. Here we show the complete set of nucleotide modifications in the anticodon arm of the mitochondrial and cytosolic tRNA(Trp) as determined by electrospray ionization mass spectrometry. This analysis revealed extensive mitochondria-specific posttranscriptional modifications, including the first example of thiolation of U33, the "universally unmodified" uridine. In light of the known rigidity imparted on sugar conformation by thiolation, our discovery of a thiolated U33 suggests that conformational flexibility is not a universal feature of the anticodon structural signature. In addition, the in vivo analysis of tRNA(Trp) variants presented shows a single base-pair reversal in the anticodon stem of tRNA(Trp) is sufficient to abrogate editing in vivo, indicating that subtle changes in anticodon structure can have drastic effects on editing efficiency.

Indexed as

AnticodonNucleic Acid ConformationRNA EditingBase SequenceChromatography, LiquidMitochondriaMolecular Sequence DataRNA, Transfer, TrpSpectrometry, Mass, Electrospray IonizationSulfhydryl CompoundsUridineAnticodonRNA, Transfer, TrpSulfhydryl CompoundsUridine

Identifiers

PMID12088148
PMCPMC1370294
OpenAlexW2110806299

What OpenQuestion holds

Textmetadata
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.