PF1140 is a fungal N-hydroxypyridone natural product that chelates iron and exhibits antifungal activity.
Details
PF1140 is an N-hydroxypyridone secondary metabolite isolated from various Penicillium species and structurally characterized by X-ray crystallography. Its N-hydroxypyridone moiety enables strong Fe3+ chelation, conferring siderophore-like properties under physiological conditions. PF1140 exhibits antifungal activity, notably against Hymenoscyphus fraxineus, and has demonstrated antibacterial effects against Mycoplasma genitalium, potentially via iron-mediated oxidative stress. These properties highlight its role in fungal chemical ecology and iron-dependent cytotoxicity mechanisms. PF1140 represents a valuable scaffold for studying iron-binding natural products and redox-driven antimicrobial activity.