Antimycobacterial Rufomycin Analogues from Streptomyces atratus Strain MJM3502

Autor: James B. McAlpine, Guido F. Pauli, Shao-Nong Chen, Hyun Lee, Joo-Won Suh, Cele Abad-Zapatero, Nina M. Wolf, Sang-Hyun Cho, Bin Zhou, Scott G. Franzblau, Gauri Shetye, Jonathan Bisson, Hanki Lee, Yang Yu, Jinhua Cheng, Larry L. Klein, Ying-Yu Jin, Bernard D. Santarsiero
Rok vydání: 2020
Předmět:
Zdroj: J Nat Prod
ISSN: 1520-6025
0163-3864
DOI: 10.1021/acs.jnatprod.9b01095
Popis: This study represents a systematic chemical and biological study of the rufomycin (RUF) class of cyclic heptapeptides, which our anti-TB drug discovery efforts have identified as potentially promising anti-TB agents that newly target the caseinolytic protein C1, ClpC1. Eight new RUF analogues, rufomycins NBZ1-NBZ8 (1-8), as well as five known peptides (9-13) were isolated and characterized from the Streptomyces atratus strain MJM3502. Advanced Marfey's and X-ray crystallographic analysis led to the assignment of the absolute configuration of the RUFs. Several isolates exhibited potent activity against both pathogens M. tuberculosis H37Rv and M. abscessus, paired with favorable selectivity (selectivity index >60), which collectively underscores the promise of the rufomycins as potential anti-TB drug leads.
Databáze: OpenAIRE