Molecular origins of life: peptide prebiotic emergence and evolution through a permanent, cyclic molecular engine (the primary pump). Influence on the emergence of homochirality

Details Molecular origins of life: peptide prebiotic emergence and evolution through a permanent, cyclic molecular engine (the primary pump). Influence on the emergence of homochirality Molecular origins of life: peptide prebiotic emergence and evolution through a permanent, cyclic molecular engine (the primary pump). Influence on the emergence of homochirality

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.496..305b&link_type=abstract

In: Exo-/astro-biology. Proceedings of the First European Workshop, 21 - 23 May 2001, ESRIN, Frascati, Italy. Eds.: P. Ehrenfreu

Biology

6

Exobiology

Scientific paper

Based on simple, prebiotic chemical reactions of amino acid derivatives, we propose an original scenario accounting for the prebiotic emergence and evolution of polypeptides through a permanent, evolutive molecular engine: the "primary pump", driven by repeated wetting/drying alternations, and continuously fed by "essential" and high-energy molecules. Possible effects of this primary pump, such as the selection of privileged peptide sequences, or the emergence of homochirality are examined.

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