Pisum Sativum Agglutinin (PSA), Biotinylated

The lectin has specificity toward α-linked mannose-containing oligosaccharides, with an N-acetylchitobiose-linked α-fucose residue included in the receptor sequence.

Biotinylated Pisum sativum agglutinin has an appropriate number of biotins bound to provide the optimum staining characteristics for this lectin. This conjugate is supplied essentially free of unconjugated biotins and is preserved with sodium azide.

$213.00

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SKU: B-1055-5
Molecular Weight
53
Extinction Coefficient
1.2
Formulation
10 mM HEPES, pH 7.5, 0.15 M NaCl, 0.1 mM CaCl2, 0.01 mM MnCl2, 0.08% sodium azide
Inhibiting or Eluting Sugar
Mixture of a-methyl-mannoside & a-methyl-glucoside
Unit Size
5 mg
Storage Instructions
2-8 °C; Store frozen for long term storage
Sugar Specificity
α1,6-linked fucose
Usage Summary
For most applications we recommend a freshly prepared working solution of 5-20 µg/ml in the below buffer.
Applications
Immunohistochemistry / Immunocytochemistry, Immunofluorescence, Blotting Applications, Elispot, ELISAs, Glycobiology
Concentration
5 mg active conjugate/ml
Conjugate
Biotinylated
Technical Information

Pisum sativum agglutinin is nearly identical in structure and carbohydrate specificity to Lens culinaris agglutinin. Calcium and manganese ions are required for activity. PSA has been used to fractionate cells, to isolate glycoproteins and glycopeptides, to distinguish between normal and virally transformed cells, as a T-cell mitogen, and as an inhibitor of allograft rejection.

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 α-methylmannoside/200 mM α-methylglucoside

Product FAQs

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.