Toxalbumin
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Toxalbumins are toxic plant proteins that disable ribosomes and thereby inhibit protein synthesis, producing severe cytotoxic effects in multiple organ systems. They are dimers held together by a disu
Ricinus communis
Ricin
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Ricin is a lectin and a highly potent toxin produced in the seeds of the castor plant, Ricinus communis. The median lethal dose of ricin for mice is around 22 micrograms per kilogram of body mass via
Toxalbumin
…for instance in Robinia pseudoacacia, Abrus precatorius, Jatropha curcas, Croton gratissimus and Ricinus communis. Typical toxalbumins are abrin and ricin. Ingestion of seed containing toxalbumins is not necessarily fatal as the hard seed coat will withstand digestion, unless the seed has been pierced…
Castor beans
Castor oil seeds in the Royal Botanic Gardens, Kew Economic Botany Collection
A metal vial containing ricin from the 2003 ricin letters
Ricin toxin, RiVax, RTA1-33/44-198, and a single domain antibody-antigen complex with the RTA1-33/44-198 immunogen. Original figure can be found in Legler, et al.