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  • Title: The identification of membrane glycoconjugates in Leishmania species.
    Author: Jaffe CL, McMahon-Pratt D.
    Journal: J Parasitol; 1988 Aug; 74(4):548-61. PubMed ID: 3397816.
    Abstract:
    The membrane glycoconjugates of 8 different species of Leishmania were compared by lectin blotting. Five different lectins with various sugar specificities were examined: concanavalin A, Lens culinaris, Ricinus communis, soybean agglutinin, and peanut agglutinin. Concanavalin A and Lens culinaris reacted with every Leishmania tested. The patterns observed for these 2 lectins, as well as the various species of parasites, were different. However, a common 41,000-52,000 and a 160,000-185,000 Mr component was present in almost all the parasite isolates examined. Ricinus communis only recognized a nondiscrete galactose-containing glycoconjugate similar to Leishmania-excreted factor. Soybean and peanut agglutinins reacted with a few low molecular weight parasite components. Soybean agglutinin reacted with all the Leishmania species tested, whereas peanut lectin only recognized 3 isolates. The latter lectin bound to discrete components migrating with the dye front and with Mr's of 35,000 and 52,000. Increased glycosylation was noted on avirulent L. major promastigotes and was associated with the appearance of several new peanut agglutinin-binding glycoproteins.
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