Mal-C6-α-Amanitin is a drug-linker conjugate for ADC with potent antitumor activity by using α-Amanitin (an RNA polymerase II inhibitor), linked via the ADC linker Mal-C6.
ε-Amanitin is a cyclic peptide obtained from various mushroom species. It exhibits a strong affinity for RNA polymerase II and effectively inhibits its activity.
β-Amanitin, a cyclic peptide toxin found in the poisonous Amanita phalloides mushroom, inhibits eukaryotic RNA polymerase II and III, thereby disrupting protein synthesis.