Peptides by activation of amino acids with CO on (Ni,Fe)S surfaces: implications for the origin of life |
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Authors: | C Huber G W?chtersh?user |
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Affiliation: | Department for Organic Chemistry and Biochemistry, Technische Universit?t München, Lichtenbergstrasse 4, D-85747 Garching, Germany. |
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Abstract: | In experiments modeling volcanic or hydrothermal settings amino acids were converted into their peptides by use of coprecipitated (Ni,Fe)S and CO in conjunction with H2S (or CH3SH) as a catalyst and condensation agent at 100 degreesC and pH 7 to 10 under anaerobic, aqueous conditions. These results demonstrate that amino acids can be activated under geochemically relevant conditions. They support a thermophilic origin of life and an early appearance of peptides in the evolution of a primordial metabolism. |
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