Evidence map›Paper›PMID 25870268›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Meteorite-catalyzed syntheses of nucleosides and of other prebiotic compounds from formamide under proton irradiation.

Raffaele Saladino, Eleonora Carota, Giorgia Botta, Mikhail Kapralov, Gennady N Timoshenko, Alexei Y Rozanov, Eugene Krasavin, Ernesto Di Mauro

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
14.2field-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

56 citing papers in PubMed, 187 citations in OpenAlex.

  1. Review
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  6. Article
  7. COAccounts of chemical research · 2024
    Article
  8. Article
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  11. Direct Synthesis of Formamide from COJournal of the American Chemical Society · 2023
    Article
  12. Prebiotic Synthesis ofJournal of the American Chemical Society · 2023
    Article
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  14. Article
  15. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Raffaele SaladinoDipartimento di Scienze Ecologiche e Biologiche, Università della Tuscia, 01100 Viterbo, Italy; ernesto.dimauro@uniroma1.it saladino@unitus.it.
Eleonora CarotaDipartimento di Scienze Ecologiche e Biologiche, Università della Tuscia, 01100 Viterbo, Italy;
Giorgia BottaDipartimento di Scienze Ecologiche e Biologiche, Università della Tuscia, 01100 Viterbo, Italy;
Mikhail KapralovLaboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia; and.
Gennady N TimoshenkoLaboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia; and.
Alexei Y RozanovLaboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia; and.
Eugene KrasavinLaboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia; and.
Ernesto Di MauroIstituto Pasteur-Fondazione Cenci Bolognetti, c/o Dipartimento di Biologia e Biotecnologie "Charles Darwin," Sapienza-Università di Roma, Rome 00185, Italy ernesto.dimauro@uniroma1.it saladino@unitus.it.
Joint Institute for Nuclear Research · RUUniversità degli Studi della Tuscia · ITIstituto Pasteur · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Liquid formamide has been irradiated by high-energy proton beams in the presence of powdered meteorites, and the products of the catalyzed resulting syntheses were analyzed by mass spectrometry. Relative to the controls (no radiation, or no formamide, or no catalyst), an extremely rich, variegate, and prebiotically relevant panel of compounds was observed. The meteorites tested were representative of the four major classes: iron, stony iron, chondrites, and achondrites. The products obtained were amino acids, carboxylic acids, nucleobases, sugars, and, most notably, four nucleosides: cytidine, uridine, adenosine, and thymidine. In accordance with theoretical studies, the detection of HCN oligomers suggests the occurrence of mechanisms based on the generation of radical cyanide species (CN·) for the synthesis of nucleobases. Given that many of the compounds obtained are key components of extant organisms, these observations contribute to outline plausible exogenous high-energy-based prebiotic scenarios and their possible boundary conditions, as discussed.

Indexed as

Evolution, ChemicalMeteoroidsAmino AcidsCarboxylic AcidsCatalysisFormamidesModels, ChemicalMolecular StructureNucleosidesOrigin of LifeProtonsAmino AcidsCarboxylic AcidsformamideFormamidesNucleosidesProtonsformamidemeteoritesnucleosidesorigin of lifeprebiotic syntheses

Identifiers

PMID25870268
PMCPMC4450408
OpenAlexW2059742271

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.