Evidence map›Paper›PMID 10518524›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

Correlation of deformability at a tRNA recognition site and aminoacylation specificity.

K Y Chang, G Varani, S Bhattacharya, H Choi, W H McClain

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

14 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Surprising contribution to aminoacylation and translation of non-Watson-Crick pairs in tRNA.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. On the wobble GoU and related pairs.RNA (New York, N.Y.) · 2000
    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 3 institutions in 2 countries.

K Y ChangMedical Research Council Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, United Kingdom.
G Varani
S Bhattacharya
H Choi
W H McClain
MRC Laboratory of Molecular Biology · GBMedical Research Council · GBUniversity of Wisconsin–Madison · US

Funding

STRUCTURE AND FUNCTION OF E COLI TRNAR01GM042123 · NIGMS · UNIVERSITY OF WISCONSIN MADISON · PI MCCLAIN, WILLIAM H · 1988 to 2004
$1.5M
NIGMS NIH HHS GM42123NIGMS NIH HHS R01 GM042123
6 · The paper itself

Abstract

The fidelity of protein synthesis depends on specific tRNA aminoacylation by aminoacyl-tRNA synthetase enzymes, which in turn depends on the recognition of the identity of particular nucleotides and structural features in the substrate tRNA. These features generally reside within the acceptor helix, the anticodon stem-loop, and in some systems the variable pocket of the tRNA. In the alanine system, fidelity is ensured by a G.U wobble base pair located at the third position within the acceptor helix of alanine tRNA. We have investigated the activity of mutant alanine tRNAs to explore the mechanism of enzyme recognition. Here we show that the mismatched pair C-C is an excellent substitute for G.U in alanine-tRNA-knockout cells. A structural investigation by NMR spectroscopy of the C-C RNA acceptor end reveals that the two cytosines are intercalated into the helix, and that C-C exists in multiple conformations. Structural heterogeneity also is present in the wild-type G.U RNA, whereas inactive Watson-Crick helices are structurally rigid. The correlation between functional and structural data suggests that the G.U pair provides a distinctive structure and a point of deformability that allow the tRNA acceptor end to fit into the active site of the alanyl-tRNA synthetase. Fidelity is ensured because noncognate and inactive mutant tRNAs are bound in the active site in an incorrect conformation that reduces enzymatic activity.

Indexed as

Nucleic Acid ConformationProtein BiosynthesisAcylationAdenineBase PairingBlotting, WesternCatalysisCytosineEscherichia coliGuanineMagnetic Resonance SpectroscopyMolecular Sequence DataMutagenesisRNARNA, Transfer, AlaUracilAdenineCytosineGuanineRNARNA, Transfer, AlaUracil

Identifiers

PMID10518524
PMCPMC18360
OpenAlexW1963859432

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.