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A 2-O-methylriboside unknown outside the RNA world contains arsenic

Angewandte Chemie (International ed. in English) | 2 Aug 2017

RA Glabonjat, G Raber, KB Jensen, N Guttenberger, K Zangger and K Francesconi
Abstract
Lipid-soluble arsenic compounds, also called arsenolipids, are ubiquitous marine natural products of currently unknown origin and function. In our search for clues about the possible biological roles of these compounds, we investigated arsenic metabolism in the unicellular green alga Dunaliella tertiolecta, and discovered an arsenolipid fundamentally different from all those previously identified; namely, a phytyl 5-dimethylarsinoyl-2-O-methyl-ribofuranoside. The discovery is of particular interest because 2-O-methylribosides have, until now, only been found in RNA. We briefly discuss the significance of the new lipid in biosynthesis and arsenic biogeochemical cycling.
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Concepts
Debut albums, Amino acid, Natural selection, Algae, Ecology, DNA, Dunaliella, Metabolism
MeSH headings
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