Description
UK-3A is an antifungal antibiotic obtained from the mycelial cake of Streptomyces sp. 517-02. The antifungal spectrum of UK-3A was relatively broad (MICs for yeasts and filamentous fungi: 1.56-6.25 and 0.39-1.56 micrograms/ml, respectively). The cytotoxic activity of UK-3A was weak (IC50: 18-100 micrograms/ml)