ArticleNucleic acids research2023
Enhanced nonenzymatic RNA copying with in-situ activation of short oligonucleotides.
Article in Nucleic acids research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Exonuclease Ribozyme Encoded in a Circular Genome: On the Initiation of the RNA World.Life (Basel, Switzerland) · 2026Article
- Brave new RNA world(s): from prebiotic chemistry to gene regulation and RNA technology.Frontiers in genetics · 2026Review
- From experimental clues to theoretical modeling: Evolution associated with the membrane-takeover at an early stage of life.PLoS computational biology · 2025Article
- Overcoming nucleotide bias in the nonenzymatic copying of RNA templates.Nucleic acids research · 2024Article
- RNA Complexes with Nicks and Gaps: Thermodynamic and Kinetic Effects of Coaxial Stacking and Dangling Ends.Journal of the American Chemical Society · 2024Article
- Simulations predict preferred MgBiophysical journal · 2024Article
- Natural soda lakes provide compatible conditions for RNA and membrane function that could have enabled the origin of life.PNAS nexus · 2024Article
- Unusual Base Pair between Two 2-Thiouridines and Its Implication for Nonenzymatic RNA Copying.Journal of the American Chemical Society · 2024Article
- Circular at the very beginning: on the initial genomes in the RNA world.RNA biology · 2024Article
- Small-Molecule Organocatalysis Facilitates In Situ Nucleotide Activation and RNA Copying.Journal of the American Chemical Society · 2023Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The nonenzymatic copying of RNA is thought to have been necessary for the transition between prebiotic chemistry and ribozyme-catalyzed RNA replication in the RNA World. We have previously shown that a potentially prebiotic nucleotide activation pathway based on phospho-Passerini chemistry can lead to the efficient synthesis of 2-aminoimidazole activated mononucleotides when carried out under freeze-thaw cycling conditions. Such activated nucleotides react with each other to form 5'-5' 2-aminoimidazolium bridged dinucleotides, enabling template-directed primer extension to occur within the same reaction mixture. However, mononucleotides linked to oligonucleotides by a 5'-5' 2-aminoimidazolium bridge are superior substrates for nonenzymatic primer extension; their higher intrinsic reactivity and their higher template affinity enable faster template copying at lower substrate concentrations. Here we show that eutectic phase phospho-Passerini chemistry efficiently activates short oligonucleotides and promotes the formation of monomer-bridged-oligonucleotide species during freeze-thaw cycles. We then demonstrate that in-situ generated monomer-bridged-oligonucleotides lead to efficient nonenzymatic template copying in the same reaction mixture. Our demonstration that multiple steps in the pathway from activation chemistry to RNA copying can occur together in a single complex environment simplifies this aspect of the origin of life.
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