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Issue 34, 2019
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Production of a photohexapeptide library from entomopathogenic Photorhabdus asymbiotica PB68.1

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Abstract

A new natural product compound library, photohexapeptide library, was identified from entomopathogenic Photorhabdus asymbiotica PB68.1 after the NRPS-encoding gene phpS was activated via promoter exchange. Peptide structures, including the absolute configurations of amino acids, were determined by using a combination of bioinformatics analysis and isotopic labelling experiments followed by detailed HPLC-MS analysis. Additionally, their structures were confirmed by chemical synthesis and NMR after preparative isolation. The chemical diversity of the photohexapeptides results from promiscuous adenylation domain specificity being an excellent example of how to create libraries in nature.

Graphical abstract: Production of a photohexapeptide library from entomopathogenic Photorhabdus asymbiotica PB68.1

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Publication details

The article was received on 03 Jul 2019, accepted on 31 Jul 2019 and first published on 01 Aug 2019


Article type: Communication
DOI: 10.1039/C9OB01489F
Org. Biomol. Chem., 2019,17, 7858-7862

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    Production of a photohexapeptide library from entomopathogenic Photorhabdus asymbiotica PB68.1

    L. Zhao and H. B. Bode, Org. Biomol. Chem., 2019, 17, 7858
    DOI: 10.1039/C9OB01489F

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