| Entry of the toxic proteins abrin, modeccin, ricin, and diphtheria toxin into cells. |
| The toxin may be any suitable toxin such as ricin, diphtheria, abrin, or gelonin. |
| A toxin so potent as abrin can be expected to have appeal as a murder weapon as well as a chemical warfare agent. |
| Fodstad O, Olsnes S, Pihl A Inhibitory effect of abrin and ricin on the growth of transplantable murine tumors and of abrin on human cancers in nude mice. |
| The computer showed that Ali had begun searching Google in October last year for poisons such as abrin, ricin and cyanide. |
