Abstract
The genus Phytolacca produces a number of proteins that have antiviral properties. These antiviral proteins are ribosome-inactivating proteins (RIPs) which remove a single adenine from a highly conserved, surface-exposed, stem-loop structure in the large rRNA of eukaryotic and prokaryotic ribosomes. They are found in two general forms: dimeric toxins (type II) containing a cell binding protein linked to the RIP by a disulfide bond, and single chain RIPs (type I), such as those found in pokeweed, composed of a single chain. A number of single-chain RIPs have been isolated from leaves, seeds and roots of a wide variety of plants (for reviews see Irvin and Uckun 1992; Irvin 1995).KeywordsTransgenic PlantAntiviral ActivitySalicylic Acid LevelAntiviral ProteinTobacco Mosaic Virus InfectionThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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