Mineral surface chemistry control for origin of prebiotic peptides
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作者:
Valentina Erastova
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机构:Durham University,Department of Chemistry
Valentina Erastova
Matteo T. Degiacomi
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h-index: 0
机构:Durham University,Department of Chemistry
Matteo T. Degiacomi
Donald G. Fraser
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机构:Durham University,Department of Chemistry
Donald G. Fraser
H. Chris Greenwell
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机构:Durham University,Department of Chemistry
H. Chris Greenwell
机构:
[1] Durham University,Department of Chemistry
[2] University of Oxford,Department of Earth Sciences
[3] Durham University,Department of Earth Sciences
来源:
Nature Communications
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8卷
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摘要:
Some seventy years ago, John Desmond Bernal proposed a role for clays in the origin of life. While much research has since been dedicated to the study of silicate clays, layered double hydroxides, believed to be common on the early Earth, have received only limited attention. Here we examine the role that layered hydroxides could have played in prebiotic peptide formation. We demonstrate how these minerals can concentrate, align and act as adsorption templates for amino acids, and during wetting—drying cycles, promote peptide bond formation. This enables us to propose a testable mechanism for the growth of peptides at layered double hydroxide interfaces in an early Earth environment. Our results provide insights into the potential role of mineral surfaces in mimicking aspects of biochemical reaction pathways.
机构:
Arizona State Univ, Sch Earth & Space Explorat, Ctr Fundamental Concepts Sci, Tempe, AZ 85287 USA
Blue Marble Space Inst Sci, Seattle, WA 98154 USAUniv Glasgow, Sch Chem, WestCHEM, Glasgow G12 8QQ, Lanark, Scotland