Determination of the Absolute Configuration of Peptide Natural Products by 
Using Stable Isotope Labeling and Mass Spectrometry

Bode, Helge B.; Reimer, Daniela; Fuchs, Sebastian W.; Kirchner, Ferdinand; Dauth, Christina; Kegler, Carsten; Lorenzen, Wolfram; Brachmann, Alexander O.; Gruen, Peter

doi:10.1002/chem.201103479

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Determination of the Absolute Configuration of Peptide Natural Products by Using Stable Isotope Labeling and Mass Spectrometry

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Bode, H. B., Reimer, D., Fuchs, S. W., Kirchner, F., Dauth, C., Kegler, C., Lorenzen, W., Brachmann, A. O., & Gruen, P. (2012). Determination of the Absolute Configuration of Peptide Natural Products by Using Stable Isotope Labeling and Mass Spectrometry. CHEMISTRY-A EUROPEAN JOURNAL, 18(8), 2342-2348. doi:10.1002/chem.201103479.

引用: https://hdl.handle.net/21.11116/0000-000A-0540-8

要旨

Structure elucidation of natural products including the absolute configuration is a complex task that involves different analytical methods like mass spectrometry, NMR spectroscopy, and chemical derivation, which are usually performed after the isolation of the compound of interest. Here, a combination of stable isotope labeling of Photorhabdus and Xenorhabdus strains and their transaminase mutants followed by detailed MS analysis enabled the structure elucidation of novel cyclopeptides named GameXPeptides including their absolute configuration in crude extracts without their actual isolation.