Aureobasidin A is a cyclic ester peptide antibiotics, derived from filamentous fungi. Aureobasidin A inhibits the activity of inositol phosphorylceramide synthetase. It has strong antifungal ability.

[1] Takesako, K.; K. Ikai, F. Haruna, M. Endo, K. Shimanaka, E. Sono, T. Nakamura, I. Kato & H. Yamaguchi: Aureobasidins, new antifungal antibiotics. Taxonomy, fermentation, isolation, and properties. J. Antibiotics 44:919-924,1991

[2] Ikai K; Takesako K; Shiomi K; Moriguchi M; Umeda Y; Yamamoto J; Kato I; Naganawa H; Structure of aureobasidin A., Journal of Antibiotics, 44(9), 925-933. DOI:10.7164/antibiotics.44.925 PMID:1938614