Evidence map›Paper›PMID 1852601›Full record

ArticleNucleic acids research1991

Sequence, structural and evolutionary relationships between class 2 aminoacyl-tRNA synthetases.

S Cusack, M Härtlein, R Leberman

Open access · greenAbstract read
In one paragraph

Article in Nucleic acids research, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
10.5field-weighted citation impact, top 1% 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

85 citing papers in PubMed, 254 citations in OpenAlex.

  1. Article
  2. Potent reaction hijacking inhibitors ofbioRxiv : the preprint server for biology · 2026
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  3. Review
  4. Architecture ofProceedings of the National Academy of Sciences of the United States of America · 2025
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  5. Article
  6. Structural basis for aminoacylation of cellular modified tRNAbioRxiv : the preprint server for biology · 2024
    Article
  7. Review
  8. ExploringPharmaceuticals (Basel, Switzerland) · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Coding of Class I and II Aminoacyl-tRNA Synthetases.Advances in experimental medicine and biology · 2017
    Review
  19. Article
  20. Article

25 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

3 authors at 1 institution in 1 country.

S CusackEuropean Molecular Biology Laboratory, Grenoble, France.
M Härtlein
R Leberman
European Molecular Biology Laboratory · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Class 2 aminoacyl-tRNA synthetases, which include the enzymes for alanine, aspartic acid, asparagine, glycine, histidine, lysine, phenylalanine, proline, serine and threonine, are characterised by three distinct sequence motifs 1,2 and 3 (reference 1). The structural and evolutionary relatedness of these ten enzymes are examined using alignments of primary sequences from prokaryotic and eukaryotic sources and the known three dimensional structure of seryl-tRNA synthetase from E. coli. It is shown that motif 1 forms part of the dimer interface of seryl-tRNA synthetase and motifs 2 and 3 part of the putative active site. It is further shown that the seven alpha 2 dimeric synthetases can be subdivided into class 2a (proline, threonine, histidine and serine) and class 2b (aspartic acid, asparagine and lysine), each subclass sharing several important characteristic sequence motifs in addition to those characteristic of class 2 enzymes in general. The alpha 2 beta 2 tetrameric enzymes (for glycine and phenylalanine) show certain special features in common as well as some of the class 2b motifs. In the alanyl-tRNA synthetase only motif 3 and possibly motif 2 can be identified. The sequence alignments suggest that the catalytic domain of other class 2 synthetases should resemble the antiparallel domain found in seryl-tRNA synthetase. Predictions are made about the sequence location of certain important helices and beta-strands in this domain as well as suggestions concerning which residues are important in ATP and amino acid binding. Strong homologies are found in the N-terminal extensions of class 2b synthetases and in the C-terminal extensions of class 2a synthetases suggesting that these putative tRNA binding domains have been added at a later stage in evolution to the catalytic domain.

Indexed as

Biological EvolutionSequence AlignmentAdenosine TriphosphateAmino Acid SequenceAmino Acyl-tRNA SynthetasesAnimalsBinding SitesBombyxBrugiaEscherichia coliHumansMacromolecular SubstancesModels, MolecularMolecular Sequence DataProtein ConformationRNA, TransferAdenosine TriphosphateAmino Acyl-tRNA SynthetasesMacromolecular SubstancesRNA, TransferSerine-tRNA Ligase

Identifiers

PMID1852601
PMCPMC328370
OpenAlexW2041418072

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.