Formation of extraterrestrial peptides and their derivatives
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913338977419264 |
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| author | Krasnokutski, Serge A. Jager, Cornelia Henning, Thomas Geffroy, Claude Remaury, Quentin B. Poinot, Pauline |
| author_facet | Krasnokutski, Serge A. Jager, Cornelia Henning, Thomas Geffroy, Claude Remaury, Quentin B. Poinot, Pauline |
| contents | The formation of protein precursors, due to the condensation of atomic carbon under the low-temperature conditions of the molecular phases of the interstellar medium, opens alternative pathways for the origin of life. We perform peptide synthesis under conditions prevailing in space and provide a comprehensive analytic characterization of its products. The application of 13C allowed us to confirm the suggested pathway of peptide formation that proceeds due to the polymerization of aminoketene molecules that are formed in the C + CO + NH3 reaction. Here, we address the question of how the efficiency of peptide production is modified by the presence of water molecules. We demonstrate that although water slightly reduces the efficiency of polymerization of aminoketene, it does not prevent the formation of peptides. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_00744 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Formation of extraterrestrial peptides and their derivatives Krasnokutski, Serge A. Jager, Cornelia Henning, Thomas Geffroy, Claude Remaury, Quentin B. Poinot, Pauline Biological Physics Earth and Planetary Astrophysics Astrophysics of Galaxies Chemical Physics The formation of protein precursors, due to the condensation of atomic carbon under the low-temperature conditions of the molecular phases of the interstellar medium, opens alternative pathways for the origin of life. We perform peptide synthesis under conditions prevailing in space and provide a comprehensive analytic characterization of its products. The application of 13C allowed us to confirm the suggested pathway of peptide formation that proceeds due to the polymerization of aminoketene molecules that are formed in the C + CO + NH3 reaction. Here, we address the question of how the efficiency of peptide production is modified by the presence of water molecules. We demonstrate that although water slightly reduces the efficiency of polymerization of aminoketene, it does not prevent the formation of peptides. |
| title | Formation of extraterrestrial peptides and their derivatives |
| topic | Biological Physics Earth and Planetary Astrophysics Astrophysics of Galaxies Chemical Physics |
| url | https://arxiv.org/abs/2405.00744 |