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Paleoproterozoic sterol biosynthesis and the rise of oxygen

Author

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  • David A. Gold

    (Atmospheric and Planetary Science, Massachusetts Institute of Technology
    † Present address: Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, USA.)

  • Abigail Caron

    (Atmospheric and Planetary Science, Massachusetts Institute of Technology)

  • Gregory P. Fournier

    (Atmospheric and Planetary Science, Massachusetts Institute of Technology)

  • Roger E. Summons

    (Atmospheric and Planetary Science, Massachusetts Institute of Technology)

Abstract

Steranes in ancient rocks have been used as ‘molecular fossils’, but the very earliest records of steranes have been shown to be contaminants; here, the presence of two key sterol biosynthesis enzymes in eukaryotes and bacteria suggests at least one gene transfer between bacteria and the earliest eukaryotes occurred some 2.3 billion years ago.

Suggested Citation

  • David A. Gold & Abigail Caron & Gregory P. Fournier & Roger E. Summons, 2017. "Paleoproterozoic sterol biosynthesis and the rise of oxygen," Nature, Nature, vol. 543(7645), pages 420-423, March.
    • Handle: RePEc:nat:nature:v:543:y:2017:i:7645:d:10.1038_nature21412
    DOI: 10.1038/nature21412
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    Cited by:

    1. Alysha K. Lee & Jeremy H. Wei & Paula V. Welander, 2023. "De novo cholesterol biosynthesis in bacteria," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Benjamin T. Uveges & Gareth Izon & Shuhei Ono & Nicolas J. Beukes & Roger E. Summons, 2023. "Reconciling discrepant minor sulfur isotope records of the Great Oxidation Event," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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