Mycotoxin. Cytotoxic. Tremorgenic. Potent and specific inhibitor of the breast cancer resistance protein (BCRP; ABCG2). Reverses multidrug resistance mediated by BCRP and increases cytotoxicity of several anticancer agents in vitro.
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Antibiotic. Active against Gram-positive bacteria, protozoa and tumors. Testosterone 5alpha-reductase inhibitor. Nitric oxide synthase (NOS) inhibitor. Immunosuppressive. Enhances the antifungal activity of rapamycin.
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Antibiotic. Potent antitumor compound. pp60src tyrosine kinase inhibitor. Inhibits c-mycgene expression in murine lymphoblastoma cells. Inhibits the transforming activity of abl, erbB, fps, src and yes. Binds specifically to heat shock protein 90 (HSP90) and to its endoplasmic reticulum homolog GP96 (GRP94). Destabilizes several oncogene and proto-oncogene products. Potent nuclear hormone receptor family inhibitor.
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Antibiotic. Potent antitumor compound. pp60src tyrosine kinase inhibitor. Inhibits c-mycgene expression in murine lymphoblastoma cells. Inhibits the transforming activity of abl, erbB, fps, src and yes. Binds specifically to heat shock protein 90 (HSP90) and to its endoplasmic reticulum homolog GP96 (GRP94). Destabilizes several oncogene and proto-oncogene products. Potent nuclear hormone receptor family inhibitor.
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Shows weak cytotoxic activity against different tumor cell lines. Has antiparasitic activity.
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Shows weak cytotoxic activity against different tumor cell lines. Has antiparasitic activity.
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Diketopiperazine antibiotic. Phytotoxin. Herbicide. Natural cellulose synthesis inhibitor. Plant cell necrosis inducer. Induces common scab disease of potato.
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Diketopiperazine antibiotic. Phytotoxin. Herbicide. Natural cellulose synthesis inhibitor. Plant cell necrosis inducer. Induces common scab disease of potato.
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Antibiotic against Gram-positive bacteria, particularly Staphylococcus and Clostridia. More effective against multi-resistant strains (MRSA) than erythromycin and vancomycin. Inhibits cell proliferation and induces HL-60 cell differentiation in combination with 1,25-Dihydroxyvitamin-D3 and ATRA. Displays low cytotoxicity compared to erythromycin and spiramycin.
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