Results 11 to 20 of about 298 (200)
Aminoacylating Urzymes Challenge the RNA World Hypothesis [PDF]
Journal of Biological Chemistry, 2013 We describe experimental evidence that ancestral peptide catalysts substantially accelerated development of genetic coding. Structurally invariant 120–130-residue Urzymes (Ur = primitive plus enzyme) derived from Class I and Class II aminoacyl-tRNA synthetases (aaRSs) acylate tRNA far faster than the uncatalyzed rate of nonribosomal peptide bond ...
Li, Li +2 more
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Trinity of G-tetrads and origin of translation
Biology Direct, 2022 Background The RNA world hypothesis cannot address most of the questions of the origin of life without violating the continuity principle (small Darwinian steps without foresight and miracles).
Besik Kankia
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Life, 2023 How functional peptides may have arisen is a significant problem for the scenario of the RNA world. An attractive idea, the direct RNA template (DRT) hypothesis, proposes that RNA molecules can bind amino acids specifically and promote the synthesis of ...
Yu Shi, Chunwu Yu, Wentao Ma
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The Way forward for the Origin of Life: Prions and Prion-Like Molecules First Hypothesis
Life, 2021 In this paper the hypothesis that prions and prion-like molecules could have initiated the chemical evolutionary process which led to the eventual emergence of life is reappraised.
Sohan Jheeta +3 more
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An Aminoisoxazole‐Based Proto‐RNA
ChemistryEurope, 2023 The RNA world hypothesis predicts that life started with the development of replicating and catalytically active RNA, which evolved in a process of molecular evolution to increasingly complex chemical structures.
Felix Xu +4 more
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Arginine cofactors on the polymerase ribozyme. [PDF]
PLoS ONE, 2011 The RNA world hypothesis states that the early evolution of life went through a stage in which RNA served both as genome and as catalyst. The central catalyst in an RNA world organism would have been a ribozyme that catalyzed RNA polymerization to ...
Chengguo Yao +4 more
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RNA Synthesis by in Vitro Selected Ribozymes for Recreating an RNA World
Life, 2015 The RNA world hypothesis states that during an early stage of life, RNA molecules functioned as genome and as the only genome-encoded catalyst. This hypothesis is supported by several lines of evidence, one of which is the in vitro selection of catalytic
Lyssa L. Martin +2 more
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The Effect of Environment on the Evolution and Proliferation of Protocells of Increasing Complexity
Life, 2022 The formation, growth, division and proliferation of protocells containing RNA strands is an important step in ensuring the viability of a mixed RNA–lipid world.
Suvam Roy, Supratim Sengupta
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Acta Societatis Botanicorum Poloniae, 2014 Among the numerous hypotheses offering a scenario for the origin of life on Earth, the one called “The RNA World” has gained the most attention. According to this hypothesis RNA acted as a genetic information storage material, as a catalyst of all ...
Zofia Szweykowska-Kulińska
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Nature Communications, 2021 Prebiotic compartmentalization could prove essential for the evolution of life. Guo et al. show that liquid-liquid separation in an aqueous two-phase system driven by evaporation may already suffice to facilitate chemical processes required for the RNA ...
Wei Guo +6 more
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