Aleuria Aurantia Lectin (AAL) - 2 ml

This lectin is a dimer of two identical subunits of about 36 kDa each. UnlikeUlex europaeusandLotus tetragonolobuslectins which prefer (α -1,2) linked fucose residues,Aleuria aurantialectin binds preferentially to fucose linked (α -1,6) toN-acetylglucosamine or to fucose linked (α -1,3) toN-acetyllactosamine related structures. AAL also reversibly binds fucose attached to nucleic acids*Aleuria Aurantialectin is prepared using our affinity-purified lectins. Heat stable, cross-linked 4% agarose beads with a molecular weight exclusion limit of about 2x107daltons 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 retainedLinkage is stable over a range of pH valuesConjugated proteins are not leached off the beads by Tris or other routinely used buffersNo residual charges are present after conjugation. This minimizes non-specific binding to the matrix.Our 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 lectins.Inhibiting/Eluting Sugar: 100 mM L-fucose*2 mg lectin/ml gel