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Agarose Bound Musa Paradisiaca (Banana) Lectin

Catalog Number: AL-1413

Availability: In stock

$195.00
Unit Size: 2 ml

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Overview

    Features:

    • Matrix is heat stable, cross-linked 4% agarose beads with a molecular exlusion of about 2x107 daltons
    • Bead diameter ranges in size from 45-165 microns
    • Matrix is stable in solutions at pH 3-11 as well as many organic solvents
    • Immobilized lectins are prepared using affinity purified lectins
    • Covalent attachment preserves lectin activity and minimizes conformational changes that might result in nonspecific or hydrophobic interactions
    • Hydrophilic spacer arm is inserted between the lectin and the matrix
    • Conjugated proteins are not leached off the beads by Tris or other routinely used buffers
    • No residual charges present after conjugation.  This minimizes non-specific binding to the matrix
    • Product supplied as a 1:1 suspension in buffer
    • 5 mg lectin/ml gel
    • Inhibiting/Eluting Sugar: 200 mM α-methyl mannoside or mannose or Glycoprotein Eluting Solution (ES-1100)

    Additional Information

    Catalog Number AL-1413
    Unit Size 2 ml
    Country of Manufacture United States
    Applications Glycobiology, Affinity Chromatography
    Matrix Conjugate Lectins
    Sugar Specificity Mannose, Glucose
    Conjugate Agarose
Additional Info

    Details

    Isolated from the cultivated banana Musa paradisiaca, banana lectin (BanLec) is a very stable mannose- and glucose-binding lectin consisting of two identical 15 kDa subunits and a reported isoelectric point of pH 7.3. Although structurally related to the Jacalin family of lectins, BanLec recognizes internal α(1,3) glucosyl- and mannosyl- residues and has also been reported to bind β(1,3) and β(1,6) glucosyl-structures.

    Like Galanthus nivalis lectin, BanLec has been shown to bind gp 120 glycoprotein, an important envelope component of the human immunodeficiency virus (HIV-1), and to strongly inhibit HIV-1 entry into cells. Glycoproteins on the surface of other viruses are also likely to be recognizable by BanLec. This lectin has been reported to be a potent mitogen for peripheral T-cells in the presence of interleukin-2, and appears likely to be a cause of allergic reaction to bananas, since IgG4 antibodies against BanLec have been detected in humans.

    Agarose bound* Banana Lectin is prepared using our affinity-purified lectins. Heat stable, cross-linked 4% agarose beads with a molecular weight exclusion limit of about 2x107 daltons are used as the solid-phase matrix to which the lectins are covalently coupled. The attachment of the lectins to the beads is carefully controlled to preserve lectin activity and minimize conformational changes of the bound lectins that might result in nonspecific ionic or hydrophobic interactions. The technique we have developed to couple lectins to agarose beads inserts a hydrophilic spacer arm between the lectin and the matrix.

    This coupling method provides several advantages over the traditional cyanogen bromide procedure:

    • Maximum carbohydrate binding activity of the coupled lectins is retained
    • Linkage is stable over a range of pH values
    • Conjugated proteins are not leached off the beads by Tris or other routinely used buffers
    • No residual charges are present after conjugation. This minimizes non-specific binding to the matrix.

    Our agarose bound lectins are supplied at a constant concentration of lectin per ml of settled beads. The concentration for each lectin is selected to achieve the highest glycoconjugate binding capacity per mg of lectin present in the beads. Each lot is tested for its binding capacity using glycoproteins known to bind the lectin. This provides a guideline for the user and assures the quality of our agarose bound lectins.

    Inhibiting/eluting sugar: 200 mM α-methyl mannoside or mannose

    *5 mg lectin/ml gel

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