A fungal metabolite with diverse biological activities; inhibits binding of atractyloside to rat liver mitochondria in an ADP-dependent manner at 50 μM in a radioligand binding assay; reduces the glutathione content of rat liver mitochondria to 28% of controls at 20 μM; inhibits NADH oxidation in sonicated pigeon heart mitochondria preparations; competes with MIP-1α for binding to CCR5 chemokine receptors in vitro (IC50 = 21 μM)