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Global distribution of isoprenoid quinones across Bacteria | mSystems
Isoprenoid quinones are small electron-carrying molecules found in the membranes of organisms that produce energy through photosynthesis or respiration and participate in other important cellular processes. Recent advances in the characterization of their biosynthesis pathways enable their automated annotation from genome analyses. In this article, we performed the genomic analysis of over 26,000 cultured and uncultured bacteria, which was complemented by literature data compiled on over 6,000 cultured bacteria. This enabled us to provide an unprecedented overview of quinone distribution across the bacterial diversity. Creating such a comprehensive data set revealed new information about quinone distribution and evolutionary paths and will facilitate future exploration of various aspects of quinone biology, including their role in the evolution and diversification of bacterial metabolism.
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