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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 16
Biogeosciences, 12, 4913–4937, 2015
https://doi.org/10.5194/bg-12-4913-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 12, 4913–4937, 2015
https://doi.org/10.5194/bg-12-4913-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 19 Aug 2015

Research article | 19 Aug 2015

Fundamental molecules of life are pigments which arose and co-evolved as a response to the thermodynamic imperative of dissipating the prevailing solar spectrum

K. Michaelian and A. Simeonov

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Latest update: 05 Aug 2020
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We show that the fundamental molecules of life (those common to all three domains of life: Archaea, Bacteria, Eukaryota), including nucleotides, amino acids, enzyme cofactors, and porphyrin agglomerates, absorb light strongly from 230 to 280nm (in the UV-C) and have chemical affinity to RNA and DNA. This supports the "thermodynamic dissipation theory for the origin of life", which suggests that life arose and evolved as a response to dissipating the prevailing Archaean UV-C sunlight into heat.
We show that the fundamental molecules of life (those common to all three domains of life:...
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