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- Title
Dynamic Co-evolution of Peptides and Chemical Energetics, a Gateway to the Emergence of Homochirality and the Catalytic Activity of Peptides.
- Authors
Commeyras, Auguste; Taillades, Jacques; Collet, Hélène; Boiteau, Laurent; Vandenabeele-Trambouze, Odile; Pascal, Robert; Rousset, Alain; Garrel, Laurence; Rossi, Jean-Christophe; Biron, Jean-Philippe; Lagrille, Olivier; Plasson, Raphaël; Souaid, Eddy; Danger, Grégoire; Selsis, Franck; Dobrijévic, Michel; Martin, Hervé
- Abstract
We propose a scenario for the dynamic co-evolution of peptides and energy on the primitive Earth. From a multi component system consisting of hydrogen cyanide, several carbonyl compounds, ammonia, alkyl amine, carbonic anhydride, borate and isocyanic acid, we show that the reversibility of this system leads to several intermediate nitriles, that irreversibly evolve to α-amino acids and N-carbamoyl amino acids via selective catalytic processes. On the primitive Earth these N-carbamoyl amino acids combined with energetic molecules (NOx) may have been the core of a molecular engine producing peptides permanently and assuring their recycling and evolution. We present this molecular engine, a production example, and its various selectivities. The perspectives for such a dynamic approach to the emergence of peptides are evoked in the conclusion.
- Publication
Origins of Life & Evolution of the Biosphere, 2004, Vol 34, Issue 1/2, p35
- ISSN
0169-6149
- Publication type
Academic Journal
- DOI
10.1023/B:ORIG.0000009827.54856.59