Wheat Germ Agglutinin (WGA), Unconjugated

The receptor sugar for WGA is N-acetylglucosamine, with preferential binding to dimers and trimers of this sugar. WGA can bind oligosaccharides containing terminal N-acetylglucosamine or chitobiose, structures which are common to many serum and membrane glycoproteins. Bacterial cell wall peptidoglycans, chitin, cartilage glycosaminoglycans, and glycolipids can also bind WGA. Native WGA has also been reported to interact with some glycoproteins via sialic acid residues (see succinylated WGA).

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SKU: L-1020
Molecular Weight
36
Extinction Coefficient
1.46
Inhibiting or Eluting Sugar
GlcNAc or Chitin Hydrolysate
Unit Size
10 mg, 25 mg
Storage Instructions
2-8 °C
Sugar Specificity
Terminal GlcNAc-β, terminal GlcNAc-a and terminal N-acetyl-containing glycans
Usage Summary
Although many buffers can be employed for reconstituting and diluting this lectin, 10 mM HEPES buffered saline, pH 8.5, 0.1 mM CaCl2is recommended. For preserving solutions stored at 4 ºC, 0.08% sodium azide can be used.
Applications
Immunohistochemistry, Immunofluorescence
Conjugate
Unconjugated
Technical Information

Wheat germ agglutinin (WGA) contains a group of closely related isolectins, with an isoelectric point about pH 9. This lectin is used for the purification of insulin receptors and for neuronal tracing.

Inhibiting/Eluting Sugar: Chitin Hydrolysate or 500 mM N-acetylglucosamine with salt and/or acid elution generally required