Coryneazolicin is a plantazolicin family peptide, belonging to linear azole-containing peptides (LAPs). Although coryneazolicin was previously synthesized by in vitro experiments, its biological activity has not been evaluated. In this report, the heterologous production of coryneazolicin was accomplished to obtain enough coryneazolicin for biological activity tests. The structure of coryneazolicin was confirmed by ESI-MS and NMR analyses. The biological activity tests indicated that coryneazolicin possessed potent antibacterial activity and cytotoxicity. Although antibacterial activity of plantazolicin was previously reported, cytotoxicity was newly found in coryneazolicin among plantazolicin type peptides. In addition, we revealed that coryneazolicin induced apoptosis on HCT116 and HOS cancer cell lines.
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This study was supported by the Japan Society for the Promotion of Science by Grants-in-aids (grant number 16K01913). The NMR spectra were recorded on Bruker Avance 600 and Avance III HD 800 spectrometers at the Advanced Analysis Center, NARO.
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Takuma, M., Kuroha, M., Nagano, Y. et al. Heterologous production of coryneazolicin in Escherichia coli. J Antibiot 72, 800–806 (2019). https://doi.org/10.1038/s41429-019-0212-x