Isolation and anti-HIV-1 integrase activity of lentzeosides A-F from extremotolerant lentzea sp. H45, a strain isolated from a high-altitude Atacama Desert soil

J Antibiot (Tokyo). 2017 Apr;70(4):448-453. doi: 10.1038/ja.2016.78. Epub 2016 Jun 29.

Abstract

The extremotolerant isolate H45 was one of several actinomycetes isolated from a high-altitude Atacama Desert soil collected in northwest Chile. The isolate was identified as a new Lentzea sp. using a combination of chemotaxonomic, morphological and phylogenetic properties. Large scale fermentation of the strain in two different media followed by chromatographic purification led to the isolation of six new diene and monoene glycosides named lentzeosides A-F, together with the known compound (Z)-3-hexenyl glucoside. The structures of the new compounds were confirmed by HRESIMS and NMR analyses. Compounds 1-6 displayed moderate inhibitory activity against HIV integrase.

MeSH terms

  • Actinomycetales / chemistry*
  • Actinomycetales / classification
  • Actinomycetales / genetics
  • Altitude
  • Chile
  • Desert Climate
  • Fermentation
  • HIV Integrase Inhibitors / pharmacology*
  • HIV-1 / drug effects*
  • HIV-1 / enzymology*
  • Magnetic Resonance Spectroscopy
  • RNA, Fungal / genetics
  • RNA, Ribosomal, 16S / genetics
  • Soil Microbiology
  • Spectrometry, Mass, Electrospray Ionization

Substances

  • HIV Integrase Inhibitors
  • RNA, Fungal
  • RNA, Ribosomal, 16S