Open Access
Journal of the American Chemical Society, volume 139, issue 27, pages 9203-9212
Discovery of a Cryptic Antifungal Compound from Streptomyces albus J1074 Using High-Throughput Elicitor Screens
1
Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
|
2
Department
of Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
|
Publication type: Journal Article
Publication date: 2017-06-29
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 15
ISSN: 00027863, 15205126
PubMed ID:
28590725
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
An important unresolved issue in microbial secondary metabolite production is the abundance of biosynthetic gene clusters that are not expressed under typical laboratory growth conditions. These so-called silent or cryptic gene clusters are sources of new natural products, but how they are silenced, and how they may be rationally activated are areas of ongoing investigation. We recently devised a chemogenetic high-throughput screening approach ("HiTES") to discover small molecule elicitors of silent biosynthetic gene clusters. This method was successfully applied to a Gram-negative bacterium; it has yet to be implemented in the prolific antibiotic-producing streptomycetes. Herein we have developed a high-throughput transcriptional assay format in Streptomyces spp. by leveraging eGFP, inserted both at a neutral site and inside the biosynthetic cluster of interest, as a read-out for secondary metabolite synthesis. Using this approach, we successfully used HiTES to activate a silent gene cluster in Streptomyces albus J1074. Our results revealed the cytotoxins etoposide and ivermectin as potent inducers, allowing us to isolate and structurally characterize 14 novel small molecule products of the chosen cluster. One of these molecules is a novel antifungal, while several others inhibit a cysteine protease implicated in cancer. Studies addressing the mechanism of induction by the two elicitors led to the identification of a pathway-specific transcriptional repressor that silences the gene cluster under standard growth conditions. The successful application of HiTES will allow future interrogations of the biological regulation and chemical output of the countless silent gene clusters in Streptomyces spp.
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Xu F. et al. Discovery of a Cryptic Antifungal Compound from Streptomyces albus J1074 Using High-Throughput Elicitor Screens // Journal of the American Chemical Society. 2017. Vol. 139. No. 27. pp. 9203-9212.
GOST all authors (up to 50)
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Xu F., Nazari B., Moon K., Bushin L. B., Seyedsayamdost M. R. Discovery of a Cryptic Antifungal Compound from Streptomyces albus J1074 Using High-Throughput Elicitor Screens // Journal of the American Chemical Society. 2017. Vol. 139. No. 27. pp. 9203-9212.
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TY - JOUR
DO - 10.1021/jacs.7b02716
UR - https://doi.org/10.1021%2Fjacs.7b02716
TI - Discovery of a Cryptic Antifungal Compound from Streptomyces albus J1074 Using High-Throughput Elicitor Screens
T2 - Journal of the American Chemical Society
AU - Moon, Kyuho
AU - Bushin, Leah B
AU - Seyedsayamdost, Mohammad R
AU - Xu, Fei
AU - Nazari, Behnam
PY - 2017
DA - 2017/06/29 00:00:00
PB - American Chemical Society (ACS)
SP - 9203-9212
IS - 27
VL - 139
PMID - 28590725
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex
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@article{2017_Xu,
author = {Kyuho Moon and Leah B Bushin and Mohammad R Seyedsayamdost and Fei Xu and Behnam Nazari},
title = {Discovery of a Cryptic Antifungal Compound from Streptomyces albus J1074 Using High-Throughput Elicitor Screens},
journal = {Journal of the American Chemical Society},
year = {2017},
volume = {139},
publisher = {American Chemical Society (ACS)},
month = {jun},
url = {https://doi.org/10.1021%2Fjacs.7b02716},
number = {27},
pages = {9203--9212},
doi = {10.1021/jacs.7b02716}
}
Cite this
MLA
Copy
Xu, Fei, et al. “Discovery of a Cryptic Antifungal Compound from Streptomyces albus J1074 Using High-Throughput Elicitor Screens.” Journal of the American Chemical Society, vol. 139, no. 27, Jun. 2017, pp. 9203-9212. https://doi.org/10.1021%2Fjacs.7b02716.