Chalcomoracin and moracin C, new inhibitors of Staphylococcus aureus enoyl-ACP reductase from Morus alba = 상엽에서 분리한 enoyl-ACP reductase 저해 황색포도상 구균 항세균 물질

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Title
Chalcomoracin and moracin C, new inhibitors of Staphylococcus aureus enoyl-ACP reductase from Morus alba = 상엽에서 분리한 enoyl-ACP reductase 저해 황색포도상 구균 항세균 물질
Author(s)
Yu Jin Kim; M J Sohn; Won Gon Kim
Bibliographic Citation
Biological & Pharmaceutical Bulletin, vol. 35, no. 5, pp. 791-795
Publication Year
2012
Abstract
Bacterial enoyl-acyl carrier protein (ACP) reductase has been confirmed as a novel target for antibacterial drug development. In the screening of inhibitors of Staphylococcus aureus enoyl-ACP reductase (FabI), we found that a methanol extract of leaves of Morus alba L. potently inhibited S. aureus FabI as well as growth of S. aureus. The active principles were identified as chalcomoracin and moracin C by MS and NMR analysis. Chalcomoracin and moracin C inhibited S. aureus FabI with IC 50 of 5.5 and 83.8 μM, respectively. They also prevented the growth of S. aureus with minimum inhibitory concentration (MIC) of 4 and 32 μg/ mL, respectively. Consistent with their inhibition against FabI and bacterial growth, they prevented [ 14C]- acetate incorporation into fatty acid in S. aureus while didn't affect protein synthesis. In this study, we reported that chalcomoracin and moracin C, potent antibacterial compounds from Morus alba, inhibited FabI and fatty acid synthesis.
Keyword
ChalcomoracinEnoyl-acyl carrier protein reductaseFabIFatty acid synthesisMoracin CStaphylococcus aureus
ISSN
0918-6158
Publisher
Pharmaceutical Soc Japan
DOI
http://dx.doi.org/10.1248/bpb.35.791
Type
Article
Appears in Collections:
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
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