Combinatorial Assembly of Modular Glucosides via Carboxylesterases Regulates C. elegans Starvation Survival.

Combinatorial Assembly of Modular Glucosides via Carboxylesterases Regulates C. elegans Starvation Survival.
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DOI:
10.1021/jacs.1c05908
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发表时间:
2021-09-15
影响因子:
15
通讯作者:
Schroeder FC
Schroeder FC
中科院分区:
化学1区
文献类型:
--
作者:
Wrobel CJJ;Yu J;Rodrigues PR;Ludewig AH;Curtis BJ;Cohen SM;Fox BW;O'Donnell MP;Sternberg PW;Schroeder FC

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The recently discovered modular glucosides (MOGLs) form a large metabolite library derived from combinatorial assembly of moieties from amino acid, neurotransmitter, and lipid metabolism in the model organism C. elegans. Combining CRISPR-Cas9 genome editing, comparative metabolomics, and synthesis, we show that the carboxylesterase homologue Cel-CEST-1.2 is responsible for specific 2-O-acylation of diverse glucose scaffolds with a wide variety of building blocks, resulting in more than 150 different MOGLs. We further show that this biosynthetic role is conserved for the closest homologue of Cel-CEST-1.2 in the related nematode species C. briggsae, Cbr-CEST-2. Expression of Cel-cest-1.2 and MOGL biosynthesis are strongly induced by starvation conditions in C. elegans, one of the premier model systems for mechanisms connecting nutrition and physiology. Cel-cest-1.2-deletion results in early death of adult animals under starvation conditions, providing first insights into the biological functions of MOGLs.
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