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Categories: Peptides & Proteins / Proteins

Product name			Pisum sativum (PSA/PSL) (Semi-Pure)
Catalog No			USB-518677
Supplier’s Catalog No			518677
Supplier			US Biologicals
Source antigen			Pea
Reactivity
Cross reactivity
Applications
Molecular weight			53

Storage			-20°C
Other names
Grade
Purity			Semi-Pure
Form			Supplied as a lyophilized powder.
Reactivity life			2 years
Note			For reserch purpose only
Purity			Semi-Pure
Description			Fractionated Pisum sativum lectin or agglutinin (PSA) is a heterodimer that consists of four subunits. It has a carbohydrate specificity towards alpha-linked mannose-containing oligosaccharides. It’s hemagglutinating activity can be inhibited by glucose, mannose, and sucrose. It does not have a blood group specificity. The N-terminal sequence of the lectin has shown some degree of homology compared to lectins from other legume species. Pisum sativum lectin has also shown mitogenic effect toward murine splenocytes and could inhibit activity of HIV-1 reverse transcriptase. PSA is often used to differentiate virally transformed from normal cells. Calcium and manganese ions are required for activity Source: Pea Blood Specificity: Non-specific Sugar Specificity: alpha-Mannose, alpha-Glucose Inhibitory Carbohydrate: alpha-Methylmannoside + alpha-Methylglucoside Divalent Ions: Ca++, Mn++ Storage and Stability: Lyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile buffer or ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°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.