Carbohydrate binding properties of banana (Musa acuminata) lectin.

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    • 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 α-linked gluco-and manno-pyranosyl groups of polysaccharide chain ends, the banana lectin was shown to bind to internal 3-O-α-d-glucopyranosyl units. Now we report that this lectin also binds to the reducing glucosyl groups of β-1,3-linked glucosyl oligosaccharides (e.g. laminaribiose oligomers). Additionally, banana lectin also recognizes β1,6-linked glucosyl end groups (gentiobiosyl groups) as occur in many fungal β1,3/1,6-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. [ABSTRACT FROM AUTHOR]
    • Abstract:
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