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. 1974 Sep;142(3):695–697. doi: 10.1042/bj1420695

Inhibition of protein synthesis by ricin: experiments with rat liver mitochondria and nuclei and with ribosomes from Escherichia coli (Short Communication)

Margherita Greco *, Lucio Montanaro †, Francesco Novello †, Cecilia Saccone *, Simonetta Sperti †, Fiorenzo Stirpe †,‡
PMCID: PMC1168337  PMID: 4619014

Abstract

1. Ricin, a toxic protein from the seeds of Ricinus communis which inhibits poly(U)-directed polyphenylalanine synthesis by rat liver ribosomes (Montanaro et al., 1973), does not affect protein synthesis by isolated rat liver mitochondria. 2. The toxin is ineffective also on poly(U)-directed polyphenylalanine synthesis in reconstituted systems with ribosomes isolated from rat liver mitochondria or from Escherichia coli. 3. Ricin inhibits protein synthesis by isolated rat liver nuclei, but at concentrations much higher than those affecting rat liver ribosomes.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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