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As the potential for bioterrorism has appeared to increase, the need for simple systems for identifying potential inhibitors of the binding of such biological agents to cell membranes has increased. In this work, surface plasmon resonance (SPR) was used to monitor binding of ricin, a ribosome-inactivating protein, to the plasma membranes of NIH 3T3 cells. Once conditions were established, efficacy...
Ricin, a ribosome-inactivating protein from the plant Ricinus communis, is a heterodimeric protein. The A chain is a N-glycosidase and the B chain (RTB) is a lectin with two carbohydrate binding sites. RTB has been shown to bind asialofetuin with much greater affinity than it does galactose, supporting the hypothesis that it may exhibit multivalency. To test this, neoglycoconjugates were prepared...
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