Exploration of polyyne biosynthetic gene cluster diversity in bacteria leads to the discovery of the Pseudomonas polyyne protegencin
Exploration of polyyne biosynthetic gene cluster diversity in bacteria leads to the discovery of the Pseudomonas polyyne protegencin
复制标题
对细菌中多炔生物合成基因簇多样性的探索导致了假单胞菌多炔保护蛋白的发现
DOI:
10.1101/2021.03.05.433886
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Mullins A
中科院分区:
文献类型:
--
作者:
Mullins A
Natural products that possess alkyne or polyyne moieties have been isolated from a variety of biological sources. In bacteria their biosynthesis has been defined, however, the distribution of polyyne biosynthetic gene clusters (BGCs), and their evolutionary relationship to alkyne biosynthesis, have not been addressed. We explored the distribution of alkyne biosynthesis gene cassettes throughout bacteria, revealing evidence of multiple horizontal gene transfer events. Investigating the evolutionary connection between alkyne and polyyne biosynthesis identified a monophyletic clade possessing a conserved seven-gene cassette for polyyne biosynthesis. Mapping the diversity of these conserved genes revealed a phylogenetic clade representing a polyyne BGC inPseudomonas, pgn, and subsequent pathway mutagenesis and analytical chemistry characterised the associated metabolite, protegencin. In addition to unifying and expanding our knowledge of polyyne diversity, our results show that alkyne and polyyne biosynthetic gene clusters are promiscuous within bacteria. Systematic mapping of conserved biosynthetic genes across bacterial genomic diversity has proven to be a successful method for discovering natural products.
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