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Vector Laboratories is closed for the President’s Day on Monday, February 19th. We will be back in the office on Tuesday, February 20th.
We will respond to emails upon our return. Have a wonderful day.
GSL I is a family of glycoproteins with molecular weights of approximately 114 kDa. There are two types of subunits, termed “A” and “B”, with slightly different molecular weights. These subunits combine to form tetrameric structures, resulting in five isolectins. The “A”-rich lectin preferentially agglutinates blood group A erythrocytes and thus appears to be specific for α-N-acetylgalactosamine residues, while the “B”-rich lectin preferentially agglutinates blood group B cells and is specific for α-galactose residues. Our GSL I is a mixture of the five isolectins. GSL I has been reported to bind several glycoproteins including laminin. Biotinylated GSL I has an appropriate number of biotins bound to provide the optimum staining characteristics for this lectin.
| Unit Size | 2 mg |
|---|---|
| Applications | Immunohistochemistry / Immunocytochemistry, Immunofluorescence, Blotting Applications, Elispot, ELISAs |
| Recommended Usage | For most applications we recommend a freshly prepared working solution of 5-20 µg/ml in the below buffer. |
| Recommended Storage | 2-8 °C; Store frozen for long term storage |
| Inhibiting and/or Eluting Sugar | Inhibiting/Eluting Sugar: Mixture of 200 mM galactose (S-9003)/200 mM N-acetylgalactosamine (S-9001). |
| Solution | 10 mM HEPES, pH 7.5, 0.15 M NaCl, 0.08% sodium azide, 0.1 mM CaCl2. |
| Concentration | 2 mg active conjugate/ml |
| Conjugate | Biotinylated |
| Sugar Specificity | Galactose, N-Acetylgalactosamine |
From our experience we have found that some lectins require Ca++ to be present for optimal binding activity. We suggest using calcium chloride (CaCl2) to fortify working solutions and ensure a minimum level of Ca++ is met. This may be particularly pertinent if using phosphate based buffers as diluents and storage solutions.
This conjugate is supplied essentially free of unconjugated biotins and is preserved with sodium azide.
This biotinylated lectin is an ideal intermediate for examining glycoconjugates using the Biotin-Avidin/Streptavidin System. First the biotinylated lectin is added, followed by the VECTASTAIN ABC Reagent, Avidin D conjugate, or streptavidin derivative.
Inhibiting/Eluting Sugar: mixture of 200 mM galactose/200 mM N-acetylgalactosamine
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