A hypothesis: Reciprocal information transfer between oligoribonucleotides and oligopeptides in prebiotic molecular evolution
Identifieur interne : 000816 ( Main/Exploration ); précédent : 000815; suivant : 000817A hypothesis: Reciprocal information transfer between oligoribonucleotides and oligopeptides in prebiotic molecular evolution
Auteurs : Shuguang Zhang [États-Unis] ; Martin Egli [Suisse]Source :
- Origins of life and evolution of the biosphere [ 0169-6149 ] ; 1994-11-01.
English descriptors
- Teeft :
- Amino, Amino acid, Amino acid side chains, Amino acids, Aspartic acid, Biological systems, Central dogma, Coding system, Early stage, Error tolerance, Genetic coding system, Glutamic acid, Heterologous, Heterologous pairing, Hydrogen bonds, Hydrogen donors, Information transfer, Information transfers, Martin egli, Molecular biology, Nitrogen atoms, Nucleic, Nucleic acid, Nucleic acid bases, Nucleic acids, Oligopeptide, Oligopeptides, Oligoribonucleotide, Oligoribonucleotides, Other base, Pairing, Pairing complexes, Pairing mode, Pairing model, Peptide, Prebiotic, Prebiotic conditions, Prebiotic environment, Reciprocal information transfer, Reciprocol information transfer, Shuguang zhang, Side chains, Specific type, Structural basis, Structural compatibility, Structural model, Thin arrows, Vast number, Versatile coding system, Zhang.
Abstract
Abstract: We wish to propose a mechanism for reciprocal information transfer in prebiotic molec-ular evolution, based on heterologous pairing complex formation between oligoribonucleotides and oligopeptides. In this proposed pairing complex, the bases of the oligoribonucleotide and the side chains of the oligopeptide may form three types of complementary Watson-Crick-type hydrogen bonds. The structural basis for the pairing is the close correspondence of the distances between the side chains in the two molecules. Both the inter-nucleotide spacing of the RNA and the inter-side-chain spacing of the peptide are approximately 3.4 Å. The proposed pairing mode would allow both specific and nonspecific interactions required for reciprocal information transfer. Thus, it represents a simple and versatile coding system that could have had significant implications in prebiotic molecular selection and evolution. In addition, we propose several testable experimental approaches based on the pairing mode of oligoribonucleotides and oligopeptides to verify our hypothesis.
Url:
DOI: 10.1007/BF01582033
Affiliations:
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In this proposed pairing complex, the bases of the oligoribonucleotide and the side chains of the oligopeptide may form three types of complementary Watson-Crick-type hydrogen bonds. The structural basis for the pairing is the close correspondence of the distances between the side chains in the two molecules. Both the inter-nucleotide spacing of the RNA and the inter-side-chain spacing of the peptide are approximately 3.4 Å. The proposed pairing mode would allow both specific and nonspecific interactions required for reciprocal information transfer. Thus, it represents a simple and versatile coding system that could have had significant implications in prebiotic molecular selection and evolution. In addition, we propose several testable experimental approaches based on the pairing mode of oligoribonucleotides and oligopeptides to verify our hypothesis.</div></front></TEI><affiliations><list><country><li>Suisse</li><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Zhang, Shuguang" sort="Zhang, Shuguang" uniqKey="Zhang S" first="Shuguang" last="Zhang">Shuguang Zhang</name></noRegion></country><country name="Suisse"><noRegion><name sortKey="Egli, Martin" sort="Egli, Martin" uniqKey="Egli M" first="Martin" last="Egli">Martin Egli</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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