Representative LC/UV chromatogram under typical analytical conditions (C18 column; mobile phase: 5–100% ACN / H2O (0.05% H3PO4), linear gradient 20 min; flow rate: 0.2 mL/min; detection: 210 nm).
NMR Spectral Data
Representative 1H NMR (500 MHz) spectrum confirming the structure of 17-Hydroxyventuricidin A. Representative 13C NMR (125 MHz) spectrum supporting structural assignment of 17-Hydroxyventuricidin A.
Source Organism
Streptomyces sp.
Summary
17-Hydroxyventuricidin A is a macrolide antibiotic isolated from Streptomyces sp. with antifungal and antibacterial activity.
Details
17-Hydroxyventuricidin A is a macrolide antibiotic produced by Streptomyces sp. strain US80, isolated from Tunisian oasis soil. It was purified alongside irumamycin and X-14952B and structurally characterized using IR, ESI-MS, and 1H/13C NMR analyses. As a member of the venturicidin family, it is structurally related to venturicidin A, a known inhibitor of mitochondrial F0F1-ATP synthase. The compound exhibits antifungal and antibacterial activities, and its production is influenced by carbon source (glucose) and magnesium concentration. Production can be significantly enhanced (~70%) by addition of heat-killed fungi to the culture medium, suggesting elicitor-induced secondary metabolism. Due to its antifungal potency, it has potential applications in agricultural biocontrol strategies.