RRC ID 84800
Author Kobayashi K, Tejima R, Nagai K, Seki R, Hosoya T, Une Y, Shigeno S, Tomoda H, Ohshiro T.
Title Paranazzamides A and B, new cyclic dipeptides containing a C7-prenylated tryptophan, produced by pathogenic reptile fungi Paranannizziopsis sp. UH-21.
Journal J Antibiot (Tokyo)
Abstract Two new cyclic dipeptides, paranazzamides A (1) and B (2) containing a C7-prenylated tryptophan, were isolated from a culture broth of snake fungal disease-isolate Paranannizziopsis sp. UH-21. This is the first report on the new secondary metabolites from Paranannizziopsis sp. The planar structures of 1 and 2 were elucidated using various spectroscopic techniques including MS and 1D/2D NMR. The absolute configuration of 1 was assigned by comparison with the synthesized compound. Compounds 1 and 2 exhibited no antifungal activity, no antibacterial activity, and no cytotoxic activity even at a concentration of 128 µg ml-1, whereas 1 and 2 exhibited amphotericin B potentiating activity against Candida auris in combination treatment.
Volume 77(7)
Pages 403-411
Published 2024-7-1
DOI 10.1038/s41429-024-00725-3
PII 10.1038/s41429-024-00725-3
PMID 38750250
MeSH Amphotericin B / pharmacology Animals Anti-Bacterial Agents / chemistry Anti-Bacterial Agents / isolation & purification Anti-Bacterial Agents / pharmacology Antifungal Agents / chemistry Antifungal Agents / isolation & purification Antifungal Agents / pharmacology Candida / drug effects Dipeptides* / chemistry Dipeptides* / isolation & purification Dipeptides* / pharmacology Humans Magnetic Resonance Spectroscopy Microbial Sensitivity Tests Molecular Structure Peptides, Cyclic* / chemistry Peptides, Cyclic* / isolation & purification Peptides, Cyclic* / pharmacology Prenylation Tryptophan* / chemistry Tryptophan* / metabolism
Resource
General Microbes JCM15430