Dihydroabikoviromycin, a secondary metabolite of Streptomyces anulatus, is a polyketide synthase inhibitor[1][2].
References
[1] J Holmalahti, et al. Genotoxicity of dihydroabikoviromycin, a secondary metabolite of Streptomyces anulatus. Mutat Res. 1996 Jul 5;368(3-4):157-63. DOI:10.1016/s0165-1218(96)90057-9 [2] HIROKI MARUYAMA, et al. Isolation of Abikoviromycin and Dihydroabikoviromycin as Inhibitors of Polyketide Synthase Involved in Melanin Biosynthesis by Colletotrichum lagenarium. THE JOURNAL OF ANTIBIOTICS. VOL. 56 NO. 9, SEPT. 2003.