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Deoxyribose and deoxysugar derivatives from photoprocessed astrophysical ice analogues and comparison to meteorites

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  • Michel Nuevo

    (NASA Ames Research Center
    NASA Research Park)

  • George Cooper

    (NASA Ames Research Center)

  • Scott A. Sandford

    (NASA Ames Research Center)

Abstract

Sugars and their derivatives are essential to all terrestrial life. Their presence in meteorites, together with amino acids, nucleobases, amphiphiles, and other compounds of biological importance, may have contributed to the inventory of organics that played a role in the emergence of life on Earth. Sugars, including ribose (the sugar of RNA), and other sugar derivatives have been identified in laboratory experiments simulating photoprocessing of ices under astrophysical conditions. In this work, we report the detection of 2-deoxyribose (the sugar of DNA) and several deoxysugar derivatives in residues produced from the ultraviolet irradiation of ice mixtures consisting of H2O and CH3OH. The detection of deoxysugar derivatives adds to the inventory of compounds of biological interest that can form under astrophysical conditions and puts constraints on their abiotic formation pathway. Finally, we report that some of the deoxysugar derivatives found in our residues are also newly identified in carbonaceous meteorites.

Suggested Citation

  • Michel Nuevo & George Cooper & Scott A. Sandford, 2018. "Deoxyribose and deoxysugar derivatives from photoprocessed astrophysical ice analogues and comparison to meteorites," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07693-x
    DOI: 10.1038/s41467-018-07693-x
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    Cited by:

    1. Jia Wang & Chaojiang Zhang & Joshua H. Marks & Mikhail M. Evseev & Oleg V. Kuznetsov & Ivan O. Antonov & Ralf I. Kaiser, 2024. "Interstellar formation of lactaldehyde, a key intermediate in the methylglyoxal pathway," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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