File:S41467-023-36904-3.pdf
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Uracil in the carbonaceous asteroid (162173) Ryugu
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[edit]DescriptionS41467-023-36904-3.pdf |
English: The pristine sample from the near-Earth carbonaceous asteroid (162173) Ryugu collected by the Hayabusa2 spacecraft enabled us to analyze the pristine extraterrestrial material without uncontrolled exposure to the Earth’s atmosphere and biosphere. The initial analysis team for the soluble organic matter reported the detection of wide variety of organic molecules including racemic amino acids in the Ryugu samples. Here we report the detection of uracil, one of the four nucleobases in ribonucleic acid, in aqueous extracts from Ryugu samples. In addition, nicotinic acid (niacin, a B3 vitamer), its derivatives, and imidazoles were detected in search for nitrogen heterocyclic molecules. The observed difference in the concentration of uracil between A0106 and C0107 may be related to the possible differences in the degree of alteration induced by energetic particles such as ultraviolet photons and cosmic rays. The present study strongly suggests that such molecules of prebiotic interest commonly formed in carbonaceous asteroids including Ryugu and were delivered to the early Earth. |
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https://www.nature.com/articles/s41467-023-36904-3 https://doi.org/10.1038/s41467-023-36904-3 |
Author | Yasuhiro Oba et al. |
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current | 08:02, 22 March 2023 | ![]() | 1,239 × 1,645, 9 pages (2.11 MB) | Pamputt (talk | contribs) | Uploaded a work by Yasuhiro Oba et al. from https://www.nature.com/articles/s41467-023-36904-3 https://doi.org/10.1038/s41467-023-36904-3 with UploadWizard |
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Publisher | Springer US |
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Software used | Springer |
File change date and time | 12:02, 9 March 2023 |
Date and time of digitizing | 00:47, 3 March 2023 |
Date metadata was last modified | 12:02, 9 March 2023 |
Copyright status | Copyrighted |
Identifier | doi:10.1038/s41467-023-36904-3 |
Conversion program | iText® 5.3.5 ©2000-2012 1T3XT BVBA (SPRINGER SBM; licensed version) |
Encrypted | no |
Page size | 595.276 x 790.866 pts |
Version of PDF format | 1.4 |
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