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GNPS-guided Discovery of Xylacremolide C and D, Evaluation of Their Putative Biosynthetic Origin and Bioactivity Studies of Xylacremolide A and B

Overview
Journal RSC Adv
Specialty Chemistry
Date 2021 May 28
PMID 34046176
Citations 2
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Abstract

Targeted HRMS-GNPS-based metabolomic analysis of sp. X187, a fungal antagonist of the fungus-growing termite symbiosis, resulted in the identification of two lipopeptidic congeners of xylacremolides, named xylacremolide C and D, which are built from d-phenylalanine, l-proline and an acetyl-CoA starter unit elongated by four malonyl-CoA derived ketide units. The putative gene cluster was identified from a draft genome generated by Illumina and PacBio sequencing and RNAseq studies. Biological activities of xylacremolide A and B were evaluated and revealed weak histone deacetylase inhibitory (HDACi) and antifungal activities, as well as moderate protease inhibition activity across a panel of nine human, viral and bacterial proteases.

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