Evidence map›Paper›PMID 31913615›Full record

ArticleJournal of the American Chemical Society2020

A Model for the Emergence of RNA from a Prebiotically Plausible Mixture of Ribonucleotides, Arabinonucleotides, and 2'-Deoxynucleotides.

Seohyun Chris Kim, Lijun Zhou, Wen Zhang, Derek K O'Flaherty, Valeria Rondo-Brovetto, Jack W Szostak

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 67 citations in OpenAlex.

  1. Review
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  4. The XNA alphabet.Nucleic acids research · 2025
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  7. Chirality-Promoted Chemical Ligation and Reverse Transcription ofJournal of the American Chemical Society · 2025
    Article
  8. Article
  9. Simulations predict preferred MgBiophysical journal · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Structure-Activity Relationships in Nonenzymatic Template-Directed RNA Synthesis.Angewandte Chemie (International ed. in English) · 2021
    Article
  20. 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

6 authors at 1 institution in 1 country.

Seohyun Chris KimHoward Hughes Medical Institute, Department of Molecular Biology and Center for Computational and Integrative Biology , Massachusetts General Hospital , 185 Cambridge Street , Boston , Massachusetts 02114 , United States.ORCID 0000-0002-2230-1774
Lijun ZhouHoward Hughes Medical Institute, Department of Molecular Biology and Center for Computational and Integrative Biology , Massachusetts General Hospital , 185 Cambridge Street , Boston , Massachusetts 02114 , United States.ORCID 0000-0002-0393-4787
Wen ZhangHoward Hughes Medical Institute, Department of Molecular Biology and Center for Computational and Integrative Biology , Massachusetts General Hospital , 185 Cambridge Street , Boston , Massachusetts 02114 , United States.ORCID 0000-0003-4811-4384
Derek K O'FlahertyHoward Hughes Medical Institute, Department of Molecular Biology and Center for Computational and Integrative Biology , Massachusetts General Hospital , 185 Cambridge Street , Boston , Massachusetts 02114 , United States.ORCID 0000-0003-3693-6380
Valeria Rondo-BrovettoHoward Hughes Medical Institute, Department of Molecular Biology and Center for Computational and Integrative Biology , Massachusetts General Hospital , 185 Cambridge Street , Boston , Massachusetts 02114 , United States.
Jack W SzostakHoward Hughes Medical Institute, Department of Molecular Biology and Center for Computational and Integrative Biology , Massachusetts General Hospital , 185 Cambridge Street , Boston , Massachusetts 02114 , United States.ORCID 0000-0003-4131-1203
Howard Hughes Medical Institute · US

Funding

CIHR
6 · The paper itself

Abstract

The abiotic synthesis of ribonucleotides is thought to have been an essential step toward the emergence of the RNA world. However, it is likely that the prebiotic synthesis of ribonucleotides was accompanied by the simultaneous synthesis of arabinonucleotides, 2'-deoxyribonucleotides, and other variations on the canonical nucleotides. In order to understand how relatively homogeneous RNA could have emerged from such complex mixtures, we have examined the properties of arabinonucleotides and 2'-deoxyribonucleotides in nonenzymatic template-directed primer extension reactions. We show that nonenzymatic primer extension with activated arabinonucleotides is much less efficient than with activated ribonucleotides, and furthermore that once an arabinonucleotide is incorporated, continued primer extension is strongly inhibited. As previously shown, 2'-deoxyribonucleotides are also less efficiently incorporated in primer extension reactions, but the difference is more modest. Experiments with mixtures of nucleotides suggest that the coexistence of ribo- and arabinonucleotides does not impede the copying of RNA templates. Moreover, chimeric oligoribonucleotides containing 2'-deoxy- or arabinonucleotides are effective templates for RNA synthesis. We propose that the initial genetic polymers were random sequence chimeric oligonucleotides formed by untemplated polymerization, but that template copying chemistry favored RNA synthesis; multiple rounds of replication may have led to pools of oligomers composed mainly of RNA.

Indexed as

Models, ChemicalArabinonucleotidesDeoxyribonucleotidesPolymerizationRibonucleotidesRNAArabinonucleotidesDeoxyribonucleotidesRibonucleotidesRNA

Identifiers

PMID31913615
PMCPMC7577264
OpenAlexW3000148824

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.