The lectin from Dictyophora indusiata Fisch was isolated and purified by physiological saline extraction, (NH 4) 2SO 4 precipitation and Sephadex G-75, Sepharose 4B chromatography. It turned out to be a single band on...The lectin from Dictyophora indusiata Fisch was isolated and purified by physiological saline extraction, (NH 4) 2SO 4 precipitation and Sephadex G-75, Sepharose 4B chromatography. It turned out to be a single band on PAGE. SDS-PAGE showed that it contained one subunit, whose molecular mass was 53?000.This lectin agglutinated rabbit erythrocytes and human erythrocytes, it also agglutinated the peripheral lymphocytes cells and S 180 tumor cells from mouse. The hemagglutination of the lectin on rabbit erythrocytes was inhibited by lactose and L-fucose among the sugar tested. Amino acid composition analysis showed that it contained 15 kinds of amino acid, in which the content of aspartic acid and valine was relatively high.展开更多
文摘The lectin from Dictyophora indusiata Fisch was isolated and purified by physiological saline extraction, (NH 4) 2SO 4 precipitation and Sephadex G-75, Sepharose 4B chromatography. It turned out to be a single band on PAGE. SDS-PAGE showed that it contained one subunit, whose molecular mass was 53?000.This lectin agglutinated rabbit erythrocytes and human erythrocytes, it also agglutinated the peripheral lymphocytes cells and S 180 tumor cells from mouse. The hemagglutination of the lectin on rabbit erythrocytes was inhibited by lactose and L-fucose among the sugar tested. Amino acid composition analysis showed that it contained 15 kinds of amino acid, in which the content of aspartic acid and valine was relatively high.