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- Title
Cebulantin, a Cryptic Lanthipeptide Antibiotic Uncovered Using Bioactivity‐Coupled HiTES.
- Authors
Moon, Kyuho; Xu, Fei; Seyedsayamdost, Mohammad R.
- Abstract
The majority of natural product biosynthetic gene clusters in bacteria are silent under standard laboratory growth conditions, making it challenging to uncover any antibiotics that they may encode. Herein, bioactivity assays are combined with high‐throughput elicitor screening (HiTES) to access cryptic, bioactive metabolites. Application of this strategy in Saccharopolyspora cebuensis, with inhibition of Escherichia coli growth as a read‐out, led to the identification of a novel lanthipeptide, cebulantin. Extensive NMR spectroscopic analysis allowed the elucidation of the structure of cebulantin. Subsequent bioactivity assays revealed it to be an antibiotic selective for Gram‐negative bacteria, especially against Vibrio species. This approach, referred to as bioactivity‐HiTES, has the potential to uncover cryptic metabolites with desired biological activities that are hidden in microbial genomes.
- Subjects
ANTIBIOTICS; GENE clusters; SACCHAROPOLYSPORA; GRAM-negative bacteria; MICROBIAL genomes
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 18, p6034
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201901342