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  • Title: Tissue staining properties of lectins from the seeds of the jack fruit (Artocarpus integrifolia) and the winged bean (Psophocarpus tetragonolobus).
    Author: Vijayakumar T, Robertson D, McIntosh D, Forrester JA.
    Journal: J Exp Pathol; 1987; 3(3):281-93. PubMed ID: 2452865.
    Abstract:
    N-acetyl-D-galactosamine binding lectins from winged bean (Psophocarpus tetragonolobus) and jack fruit (Artocarpus integrifolia) were isolated, purified and conjugated with horse radish peroxidase and their tissue staining properties studied. Despite having an apparently common inhibiting sugar, the lectins showed differences in their staining properties. The lectin from the winged bean stained none of the mouse and human tissues tried even after neuraminidase treatment whereas the jack fruit lectin stained most of the untreated cells. The staining was found to be improved by the prior treatment of the cells with neuraminidase and inhibited completely by the inhibiting sugar. The differences in the staining properties of the lectins are discussed.
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