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Jacalin is a lectin composed of four subunits of approximately 16 kDa each. This lectin appears to bind only O-glycosidically linked oligosaccharides, preferring the structure galactosyl (β-1,3) N-acetylgalactosamine. This structure (the T-antigen) is the oligosaccharide to which peanut agglutinin (PNA) binds. However, unlike PNA, Jacalin will bind a mono- or disialylated form of this structure. This lectin has been used to purify human IgA. The specificity of this lectin also affords the opportunity to localize or isolate glycoproteins with O-glycosidically linked oligosaccharide side chains.

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  1. Fluorescein labeled Jacalin
    Fluorescein labeled Jacalin
    Cat. No: FL-1151
    Unit Size: 5 mg
  2. Small intestine:  Jacalin (brown, Vector DAB), Vector Hematoxylin (blue) counterstain.
    Biotinylated Jacalin
    Cat. No: B-1155
    Unit Size: 5 mg
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