Evidence map›Paper›PMID 24013929›Full record

ReviewOrigins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life2013

Norvaline and norleucine may have been more abundant protein components during early stages of cell evolution.

Claudia Alvarez-Carreño, Arturo Becerra, Antonio Lazcano

Abstract readReview
PubMed Publisher
In one paragraph

Review in Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Order of amino acid recruitment into the genetic code resolved by last universal common ancestor's protein domains.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. On the Evolutionary History of the Twenty Encoded Amino Acids.Chemistry (Weinheim an der Bergstrasse, Germany) · 2022
    Review
  8. Review
  9. Article
  10. Methionine in proteins: The Cinderella of the proteinogenic amino acids.Protein science : a publication of the Protein Society · 2019
    Review
  11. Article
  12. Article
  13. Article
  14. Can an Imidazole Be Formed from an Alanyl-Seryl-Glycine Tripeptide under Possible Prebiotic Conditions?Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2017
    Article
  15. Article
  16. Article
  17. Crystal structure of the tripeptide N-(benzyl-oxycarbon-yl)glycylglycyl-l-norvaline.Acta crystallographica. Section E, Crystallographic communications · 2015
    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

3 authors.

Claudia Alvarez-CarreñoFacultad de Ciencias, Universidad Nacional Autonoma de Mexico, Apdo. Postal 70-407, Cd. Universitaria, 04510, Mexico D.F, Mexico.
Arturo Becerra
Antonio Lazcano

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The absence of the hydrophobic norvaline and norleucine in the inventory of protein amino acids is readdressed. The well-documented intracellular accumulation of these two amino acids results from the low-substrate specificity of the branched-chain amino acid biosynthetic enzymes that act over a number of related α-ketoacids. The lack of absolute substrate specificity of leucyl-tRNA synthase leads to a mischarged norvalyl-tRNA(Leu) that evades the translational proofreading activities and produces norvaline-containing proteins, (cf. Apostol et al. J Biol Chem 272:28980-28988, 1997). A similar situation explains the presence of minute but detectable amounts of norleucine in place of methionine. Since with few exceptions both leucine and methionine are rarely found in the catalytic sites of most enzymes, their substitution by norvaline and norleucine, respectively, would have not been strongly hindered in small structurally simple catalytic polypeptides during the early stages of biological evolution. The report that down-shifts of free oxygen lead to high levels of intracellular accumulation of pyruvate and the subsequent biosynthesis of norvaline (Soini et al. Microb Cell Factories 7:30, 2008) demonstrates the biochemical and metabolic consequences of the development of a highly oxidizing environment. The results discussed here also suggest that a broader definition of biomarkers in the search for extraterrestrial life may be required.

Indexed as

Evolution, ChemicalNorleucineOrigin of LifeValineNorleucinenorvalineValine

Identifiers

What OpenQuestion holds

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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.