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Ricin is a highly toxic molecule that is refined from Castor Beans. It consists of two separate parts. Part A destroys the ribosomes that convert RNA messages into Proteins. In this way a single molecule of Part A can kill an entire cell. Part B allows the entry of Part A into the cell by binding to carbohydrates of the surface of the cell.
Original Source data:
Crystallographic refinement of ricin to 2.5 A.
Rutenber, E., Katzin, B.J., Ernst, S., Collins, E.J., Mlsna, D., Ready, M.P., Robertus, J.D.
Journal: (1991) Proteins 10: 240-250
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