Patent "Ricin-like toxin variants for treatment of cancer, viral or parasitic infections"
Thor Borgford, Twinstrand Therapeutics
International patent: WO 98/49311. Filing date: 30 April 1998. The present invention provides a protein having an A chain of a ricin-like toxin, a B chain of a ricin-like toxin and a heterologous linker amino acid sequence, linking the A and B chains.
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