Evidence map›Paper›PMID 26201989›Full record

ArticleAngewandte Chemie (International ed. in English)2015

Ester-Mediated Amide Bond Formation Driven by Wet-Dry Cycles: A Possible Path to Polypeptides on the Prebiotic Earth.

Jay G Forsythe, Sheng-Sheng Yu, Irena Mamajanov, Martha A Grover, Ramanarayanan Krishnamurthy, Facundo M Fernández, Nicholas V Hud

Open access · bronzeAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 141 papers.

0numbers the graph read from it
0cells of the map it votes in
141citing papers in PubMed
16.4field-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

141 citing papers in PubMed, 321 citations in OpenAlex.

  1. Serine Octamer Substitution Reactions With α-Hydroxy Acids.Rapid communications in mass spectrometry : RCM · 2026
    Article
  2. Review
  3. Emergence of biosignatures on Earth and implications for life detection.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. The master molecule that built biology: How water shaped the chemistry of life.Protein science : a publication of the Protein Society · 2026
    Review
  7. Article
  8. Article
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  16. Protopeptide backbone affects assembly in aqueous solutions.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Article
  18. Review
  19. Article
  20. Review

81 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

7 authors at 2 institutions in 2 countries.

Jay G ForsytheNSF/NASA Center for Chemical Evolution (USA).
Sheng-Sheng YuNSF/NASA Center for Chemical Evolution (USA).
Irena MamajanovNSF/NASA Center for Chemical Evolution (USA).
Martha A GroverNSF/NASA Center for Chemical Evolution (USA).
Ramanarayanan KrishnamurthyNSF/NASA Center for Chemical Evolution (USA). rkrishna@scripps.edu.
Facundo M FernándezNSF/NASA Center for Chemical Evolution (USA). facundo.fernandez@chemistry.gatech.edu.
Nicholas V HudNSF/NASA Center for Chemical Evolution (USA). hud@gatech.edu.
Georgia Institute of Technology · USScripps Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although it is generally accepted that amino acids were present on the prebiotic Earth, the mechanism by which α-amino acids were condensed into polypeptides before the emergence of enzymes remains unsolved. Here, we demonstrate a prebiotically plausible mechanism for peptide (amide) bond formation that is enabled by α-hydroxy acids, which were likely present along with amino acids on the early Earth. Together, α-hydroxy acids and α-amino acids form depsipeptides-oligomers with a combination of ester and amide linkages-in model prebiotic reactions that are driven by wet-cool/dry-hot cycles. Through a combination of ester-amide bond exchange and ester bond hydrolysis, depsipeptides are enriched with amino acids over time. These results support a long-standing hypothesis that peptides might have arisen from ester-based precursors.

Indexed as

Evolution, ChemicalAmidesEarth, PlanetEstersOrigin of LifePeptidesTemperatureWaterWettabilityAmidesEstersPeptidesWaterchemical evolutionday-night cycledepsipeptidesorigins-of-lifeproto-peptides

Identifiers

PMID26201989
PMCPMC4678426
OpenAlexW2097417489

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.