Evidence map›Paper›PMID 35726786›Full record

ReviewChemistry (Weinheim an der Bergstrasse, Germany)2022

On the Evolutionary History of the Twenty Encoded Amino Acids.

Andreas Kirschning

Abstract readReview
In one paragraph

Review in Chemistry (Weinheim an der Bergstrasse, Germany), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. The selfish ribosome.PLoS biology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. An Archean atmosphere rich in sulfur biomolecules.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Enhanced amino acid biosynthesis in Phaffia rhodozyma via herbicide-induced selection.Journal of industrial microbiology & biotechnology · 2024
    Article
  11. Review
  12. Article
  13. The Century-Long Journey of Peptide-Based Drugs.Antibiotics (Basel, Switzerland) · 2024
    Article
  14. Evolution at the Origins of Life?Life (Basel, Switzerland) · 2024
    Review
  15. Nucleophilicity of 4-(Alkylthio)-3-imidazoline Derived Enamines.Chemistry (Weinheim an der Bergstrasse, Germany) · 2024
    Article
  16. On the Evolutionary History of the Twenty Encoded Amino Acids.Chemistry (Weinheim an der Bergstrasse, Germany) · 2022
    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

1 author.

Andreas KirschningInstitute of Organic Chemistry, Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany.ORCID http://orcid.org/0000-0001-5431-6930

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

α-Amino acids are essential molecular constituents of life, twenty of which are privileged because they are encoded by the ribosomal machinery. The question remains open as to why this number and why this 20 in particular, an almost philosophical question that cannot be conclusively resolved. They are closely related to the evolution of the genetic code and whether nucleic acids, amino acids, and peptides appeared simultaneously and were available under prebiotic conditions when the first self-sufficient complex molecular system emerged on Earth. This report focuses on prebiotic and metabolic aspects of amino acids and proteins starting with meteorites, followed by their formation, including peptides, under plausible prebiotic conditions, and the major biosynthetic pathways in the various kingdoms of life. Coenzymes play a key role in the present analysis in that amino acid metabolism is linked to glycolysis and different variants of the tricarboxylic acid cycle (TCA, rTCA, and the incomplete horseshoe version) as well as the biosynthesis of the most important coenzymes. Thus, the report opens additional perspectives and facets on the molecular evolution of primary metabolism.

Indexed as

Amino AcidsNucleic AcidsCoenzymesOrigin of LifePeptidesAmino AcidsCoenzymesNucleic AcidsPeptidesamino acidscoenzymesgenetic codemetabolismorigin of life

Identifiers

PMID35726786
PMCPMC9796705

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.