Equilibrium and non-equilibrium furanose selection in the ribose isomerisation network

نویسندگان

چکیده

Abstract The exclusive presence of ? -D-ribofuranose in nucleic acids is still a conundrum prebiotic chemistry, given that pyranose species are substantially more stable at equilibrium. However, precise characterisation the relative furanose/pyranose fraction temperatures higher than about 50 °C lacking. Here, we employ combination NMR measurements and statistical mechanics modelling to predict population inversion between furanose equilibrium high temperatures. More importantly, show steady temperature gradient may steer an open isomerisation network into non-equilibrium state where boosted beyond limits set by thermodynamics. Moreover, demonstrate nonequilibrium selection maximum optimal dissipation, as gauged energy barriers for isomerisation. predicted optimum compatible with drops found hydrothermal vents associated extremely fresh lava flows on seafloor.

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ژورنال

عنوان ژورنال: Nature Communications

سال: 2021

ISSN: ['2041-1723']

DOI: https://doi.org/10.1038/s41467-021-22818-5