Abstract
Bahamaolide A, a new macrocyclic lactone isolated from the culture of marine actinomycete Streptomyces sp. CNQ343, was evaluated for its inhibitory activity toward isocitrate lyase (ICL) from Candida albicans. These studies led to the identification of bahamaolide A as a potent ICL inhibitor with IC50 value of 11.82μM. The growth phenotype of ICL deletion mutants and quantitative RT-PCR analyses indicated that this compound inhibits the ICL mRNA expression in C. albicans under C2-carbon-utilizing conditions. The present data highlight the potential for bahamaolide A treatment of C. albicans infections via inhibition of ICL activity.
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