Purification and characterization of a novel type i ribosome inactivating protein, pachyerosin, from Pachyrhizus erosus seeds, and preparation of its immunotoxin against human hepatoma cells.

Pachyrhizus erosus seeds have a high protein content and are used in China due to their cytotoxic effect. Here we report the biological and pharmacological activity of the protein extracts from P. erosus seeds.