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A basic cytotoxic polypeptide from Streptomyces netropsis. Netropsin binds to A-T sequences of DNA.
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Nigericin is a polyether antibiotic which affects ion transport and ATPase activity in mitochondria.
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Nivalenol is a type - B trichothecene mycotoxin produced by various Fusarium species, such as Fusarium cerealis, Fusarium graminearum, Fusarium nivale.
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Nonactin from Streptomyces Griseus: a mixture of the two homolog macrotetrolide antibiotics: Nonactin, Monactin. Nonactin is not less than 80%, ballanced by Monactin only.