Type A trichothecene mycotoxin
A basic cytotoxic polypeptide from Streptomyces netropsis. Netropsin binds to A-T sequences of DNA, and inhibits DNA replication. Netropsin is antibacterial, antiviral, and antineoplastic.
Nigericin is a polyether antibiotic which affects ion transport and ATPase activity in mitochondria.
Nivalenol is a type - B trichothecene mycotoxin produced by various Fusarium species, such as Fusarium cerealis, Fusarium graminearum, Fusarium nivale.
Nonactin from Streptomyces griseus is a mixture of the three homolog macrotetrolide antibiotics: Nonactin, Monactin and Dinactin.
Nourseothricin belongs to the Streptothricin group of aminonucleoside antibiotics. Its main application is - a selection tool in genetic engineering.