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  • Title: Carbohydrate binding properties of banana (Musa acuminata) lectin II. Binding of laminaribiose oligosaccharides and beta-glucans containing beta1,6-glucosyl end groups.
    Author: Goldstein IJ, Winter HC, Mo H, Misaki A, Van Damme EJ, Peumans WJ.
    Journal: Eur J Biochem; 2001 May; 268(9):2616-9. PubMed ID: 11322881.
    Abstract:
    This paper extends our knowledge of the rather bizarre carbohydrate binding poperties of the banana lectin (Musa acuminata). Although a glucose/mannose binding protein which recognizes alpha-linked gluco-and manno-pyranosyl groups of polysaccharide chain ends, the banana lectin was shown to bind to internal 3-O-alpha-D-glucopyranosyl units. Now we report that this lectin also binds to the reducing glucosyl groups of beta-1,3-linked glucosyl oligosaccharides (e.g. laminaribiose oligomers). Additionally, banana lectin also recognizes beta1,6-linked glucosyl end groups (gentiobiosyl groups) as occur in many fungal beta1,3/1,6-linked polysaccharides. This behavior clearly distinguishes the banana lectin from other mannose/glucose binding lectins, such as concanavalin A and the pea, lentil and Calystegia sepium lectins.
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