Purity >98% by NMR. Meroterpenoid antibiotic. Anticancer, antimicrobial, antimalarial and amoebicidal compound. Potent, selective and covalent inhibitor of methionine aminopeptidase-2 (MetAP2). Anti-angiogenic by impairing the growth of endothelial cells and altering gene expression. Inhibits endothelial cell proliferation in vitro and tumor-induced angiogenesis in vivo. Suppresses the HIV-1 infection of human macrophages through the inhibition of HIV-1 viral protein R (Vpr) activity. Inhibits neovascularization and might be useful in non-tumor diseases such as diabetic retinopathy, arthritis and psoriasis, which involve neovascularisation processes. Reduces diet-induced adipose tissue formation in mice, independent of its effects on angiogenesis.