ArticleInternational journal of molecular sciences2022
The Ring World: Eversion of Small Double-Stranded Polynucleotide Circlets at the Origin of DNA Double Helix, RNA Polymerization, Triplet Code, Twenty Amino Acids, and Strand Asymmetry.
Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Traces of a Primitive RNA Ring in Current Genomes.Biology · 2025Article
- Hypothesis: bacteria live on the edge of phase transitions with a cell cycle regulated by a water-clock.Theory in biosciences = Theorie in den Biowissenschaften · 2024Article
- Hunting the Cell CycleLife (Basel, Switzerland) · 2024Article
- Open Questions about the Roles of DnaA, Related Proteins, and Hyperstructure Dynamics in the Cell Cycle.Life (Basel, Switzerland) · 2023Review
- Primitive Oligomeric RNAs at the Origins of Life on Earth.International journal of molecular sciences · 2023Article
Corrections and comments
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Authors and funding
2 authors.
Funding
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Abstract
It is not entirely clear why, at some stage in its evolution, terrestrial life adopted double-stranded DNA as the hereditary material. To explain this, we propose that small, double-stranded, polynucleotide circlets have special catalytic properties. We then use this proposal as the basis for a 'view from here' that we term the Circlet hypothesis as part of a broader Ring World. To maximize the potential explanatory value of this hypothesis, we speculate boldly about the origins of several of the fundamental characteristics and briefly describe the main methods or treatments applied. The principal prediction of the paper is that the highly constrained, conformational changes will occur preferentially in dsDNA, dsRNA and hybrid RNA-DNA circlets that are below a critical size (e.g., 306 bp) and that these will favor the polymerization of precursors into RNA and DNA. We conclude that the Circlet hypothesis and the Ring World therefore have the attraction of offering the same solution to the fundamental problems probably confronting both the earliest cells and the most recent ones.
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