1H NMR-MS-based heterocovariance as a drug discovery tool for fishing bioactive compounds out of a complex mixture of structural analogues.

Research output: Contribution to journalArticle

Authors

  • Ulrike Grienke
  • Julia Zwirchmayr
  • Ammar Tahir
  • Judith M Rollinger
  • Emmanuel Mikros

Colleges, School and Institutes

Abstract

Chemometric methods and correlation of spectroscopic or spectrometric data with bioactivity results are known to improve dereplication in classical bio-guided isolation approaches. However, in drug discovery from natural sources the isolation of bioactive constituents from a crude extract containing close structural analogues remains a significant challenge. This study is a 1H NMR-MS workflow named ELINA (Eliciting Nature’s Activities) which is based on statistical heterocovariance analysis (HetCA) of 1H NMR spectra detecting chemical features that are positively (“hot”) or negatively (“cold”) correlated with bioactivity prior to any isolation. ELINA is exemplified in the discovery of steroid sulfatase (STS) inhibiting lanostane triterpenes (LTTs) from a complex extract of the polypore fungus Fomitopsis pinicola.

Details

Original languageEnglish
Article number11113
JournalScientific Reports
Volume9
Publication statusPublished - 31 Jul 2019