5 years ago

Phosphoribosyl Pyrophosphate: A Molecular Vestige of the Origin of Life on Minerals

Phosphoribosyl Pyrophosphate: A Molecular Vestige of the Origin of Life on Minerals
Marie-Christine Maurel, Maguy Jaber, Jean-Francois Lambert, Mariame Akouche, Thomas Georgelin
In this contribution, we report the formation under prebiotic conditions of phosphoribosyl pyrophosphate (PRPP) as a molecular precursor in the one-pot synthesis of a canonical nucleotide, namely adenosine monophosphate (AMP) from its building blocks (KH2PO4 or Pi, adenine, and d-ribose), on a fumed silica surface. The on-the-rocks approach has been successfully applied to the simultaneous phosphorylation and glycosylation of ribose. The one-pot formation mechanism of AMP involves a two-step pathway via an activated intermediate, namely PRPP, obtained by multiple ribose phosphorylations upon mild thermal activation. AMPing up prebiotic synthesis: The formation of phosphoribosyl pyrophosphate (PRPP) under prebiotic conditions is reported. PRPP was further used as a molecular intermediate in the one-pot synthesis of a canonical nucleotide, namely adenosine monophosphate (AMP) from its building blocks (KH2PO4, adenine, and d-ribose), on a fumed silica surface.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201702633

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