Frontiers in Microbiology (Sep 2024)

Aplospojaveedins A–C, unusual sulfur-containing alkaloids produced by the endophytic fungus Aplosporella javeedii using OSMAC strategy

  • Ying Gao,
  • Ying Gao,
  • Marian Frank,
  • Nicole Teusch,
  • Dennis Woschko,
  • Christoph Janiak,
  • Attila Mándi,
  • Tibor Kurtán,
  • Rudolf Hartmann,
  • Katja Schiedlauske,
  • Lasse van Geelen,
  • Rainer Kalscheuer,
  • Jesko Kaiser,
  • Christoph G. W. Gertzen,
  • Holger Gohlke,
  • Holger Gohlke,
  • Bin-Gui Wang,
  • Peter Proksch,
  • Zhen Liu

DOI
https://doi.org/10.3389/fmicb.2024.1458622
Journal volume & issue
Vol. 15

Abstract

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Three sulfur-containing alkaloids aplospojaveedins A–C (1–3) with a hitherto undescribed carbon skeleton comprising octahy-dronaphthalene, α, β-unsaturated lactam and glycine-cysteine moieties were isolated from Aplosporella javeedii. Their structures were elucidated by 1D and 2D NMR spectroscopy, HR-MS, X-ray diffraction analysis, DFT-NMR and TDDFT-ECD calculations. A plausible biosynthetic pathway and putative targets are described. The blind docking suggested that 1–3 may have functional effects on several putative targets such as the GPCR cannabinoid receptor 2 or the integrin α5β1 complex.

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