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Datura stramonium (DSA)

Cat no: D1100-01A

Datura stramonium (DSA)

This 86,000 molecular weight glycoprotein contains two chains of 40,000 and 46,000D joined by disulfide bonds. This lectin is free of a reported 32,000 molecular weight contaminant protein. The carbohydrate binding site recognizes (b-1,4) linked N-acetylglucosamine oligomers, preferring chitobiose or chitotriose over a single N-acetylglucosamine residue. This lectin binds well in the acidic pH range but its affinity decreases above pH 8.0.\nDSL is mitogenic toward human peripheral lymphocytes and its potency has been reported to increase as the lectin aggregates to larger molecular weight species. Datura lectin also binds well to N-acetyllactosamine and oligomers containing repeating N-acetyllactosamine sequences. A branched pentasaccharide including two N-acetyllactosamine disaccharides linked to mannose (b-1,6) and (b-1,2) was reported to be the most potent inhibitor of agglutination. Carcinoembryonic antigen, capsular polysaccharides and many glycoproteins have binding sites for this lectin.\n\nApplications: \nSuitable for use in ELISA. Other applications not tested.\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nInhibiting/Eluting Sugar: \nChitin Hydrolysate\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile buffer. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 6 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

D1100-01A

Size

5mg

Applications

ELISA

Form

Supplied as a lyophilized powder.

Purity

Homogeneous by SDS-PAGE

Alternative Names

Thorn Apple or Jimson Weed

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