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Pisum Sativum Agglutinin (PSA), Biotinylated (B-1055-5)

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Description

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.

Specifications

Unit Size5 mg
ApplicationsImmunohistochemistry / Immunocytochemistry, Immunofluorescence, Blotting Applications, Elispot, ELISAs, Glycobiology
Recommended UsageFor most applications we recommend a freshly prepared working solution of 5-20 µg/ml in the below buffer.
Recommended Storage2-8 °C; Store frozen for long term storage
Solution10 mM HEPES, pH 7.5, 0.15 M NaCl, 0.1 mM CaCl2, 0.01 mM MnCl2, 0.08% sodium azide
Concentration5 mg active conjugate/ml
ConjugateBiotinylated
Sugar SpecificityMannose, Glucose

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.

Citations

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

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