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  • Title: A novel lectin from the wild mushroom Polyporus adusta.
    Author: Wang H, Ng TB, Liu Q.
    Journal: Biochem Biophys Res Commun; 2003 Aug 01; 307(3):535-9. PubMed ID: 12893255.
    Abstract:
    A lectin with antiproliferative activity toward tumor cell lines and mitogenic activity toward splenocytes was isolated from the mushroom Polyporus adusta. The lectin was composed of two identical subunits each with a molecular weight of 12 kDa. It was adsorbed on both DEAE-cellulose and Q-Sepharose and unadsorbed on CM-Sepharose. The hemagglutinating activity of the lectin was inhibited by turanose and by a large variety of other carbohydrates. It was adversely affected in the presence of NaOH or HCl at a concentration of 7.5mM and above, and when the ambient temperature was raised above 70 degrees C. All divalent and trivalent metallic chlorides tested at 1.25-10mM including CaCl(2), MgCl(2), ZnCl(2), MnCl(2), and AlCl(3), did not alter the hemagglutinating activity of the lectin. FeCl(3) at 10mM caused the hemagglutinating activity to increase by 100%, but it did not change the lectin activity when tested at lower concentrations up to 5mM.
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