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On the origin of the transfer RNA molecule
Abstract
Data and arguments are given in favour of the hypothesis that the primitive tRNA molecule may have originated from a direct duplication event involving one of the two halves of the tRNA molecule. It seems that a molecule capable of assuming a hairpin structure was involved as a precursor in this duplication. The two halves of the present tRNAs could, therefore, be considered as paralogous.
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“Among the 20 amino acids in the universal code, approximately half came from the prebiotic soup; as we see in the SNS code, the remaining half of amino acids were derivatives of the first set of 10 primitive amino acids by biosynthesis [78].”
From The Origin of Prebiotic Information System in the Peptide/RNA World: A Simulation Model of the Evolution of Translation and the Genetic Code (2019) · cites this paper as [78]
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Metadata
- Authors
- Giulio, M. D.
- Affiliations
- Institute of Genetics and Biophysics (IT)
- Corresponding author
- Giulio, Massimo Di
- ORCID
- Giulio, Massimo Di
- Venue
- Journal of Theoretical Biology
- Publisher
- Elsevier BV
- Published
- 1992-11
- Volume
- 159
- Issue
- 2
- Pages
- 199-214
- ISSN
- 0022-5193 (ISSN-L)
- OpenAlex
- W1968532770
- Cited by
- 131
- References
- 38
- Citations by year
- 2026: 3 · 2025: 1 · 2024: 3 · 2023: 5 · 2022: 9 · 2021: 4 · 2020: 5 · 2019: 6 · 2018: 6 · 2017: 5 · 2016: 3 · 2015: 11 · 2014: 5 · 2013: 6 · 2012: 7
- FWCI
- 0.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Theoretical Biology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA modifications and cancer
- Keywords
- tRNA, molecular evolution, gene duplication, hairpin structure, paralogs, tRNA structure
- MeSH terms
- Amino Acid Sequence, Animals, Biological Evolution, Models, Genetic, Molecular Sequence Data, RNA, Transfer, Sequence Homology
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