title: Two phytotoxic anti-tumor proteins: ricin and abrin. Isolation, crystallization, and preliminary x-ray study.
mesh_terms: D000645:Ammonium Sulfate; D000970:Antineoplastic Agents / Q000302:isolation & purification*; D002852:Chromatography, Ion Exchange; D003460:Crystallization; D003956:Dialysis; D010940:Plant Proteins / Q000302:isolation & purification*; D010944:Plants / Q000032:analysis; D010947:Plants, Toxic; D012278:Ricinus / Q000032:analysis*; D012639:Seeds / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D000970:Antineoplastic Agents; D010940:Plant Proteins; D000645:Ammonium Sulfate