Basidiosins A and B: Cyclopentapeptides from the entomophthoralean fungus Basidiobolus meristosporus.

Basidiosins A and B: Cyclopentapeptides from the entomophthoralean fungus Basidiobolus meristosporus.
Fitoterapia. 2020 Jun 18;:104671
Authors: Luo F, He Y, Wei J, Zhao C, Zhou X, Hu F, Lu R, Bao G, Huang B
Abstract
Two new cyclopentapeptides, basidiosins A and B (1 and 2) were isolated from the mycelia extracts of entomophthoralean fungus Basidiobolus meristosporus RCEF 4516. The structures were determined based on spectroscopic methods, and the absolute config urations were assigned by Marfey's method on their acid hydrolyzates. Compounds 1 and 2 were identified as cyclo(L-Thr-L-Leu- L-Ile-D-Tyr-D-Thr) and cyclo(L-Thr-L-Leu-L-Val-D-Val-D-Ser), respectively. They were evaluated for the biological activities including antibacterial, antifungal and antioxidative activities. Furthermore, the biosynthetic pathway of 1 was proposed by bioinformatic analysis. This is the first study on the isolation of natural products from Basidiobolus fungus.
PMID: 32565347 [PubMed - as supplied by publisher]

Source: Fitoterapia - June 17, 2020 Category: Biochemistry Authors: Luo F, He Y, Wei J, Zhao C, Zhou X, Hu F, Lu R, Bao G, Huang B Tags: Fitoterapia Source Type: research