Phospholipase A2
目录号 : GP25125Phospholipase A2 P00630 Bee Venom Protein Recombinant
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| Purity | Protein is >90% pure as determined by 10% SDS-PAGE. | Source | Escherichia Coli. |
| Phycical Appearance | Shipping Condition | Shipped with Ice Packs. | |
| Synonyms | Phospholipase A2; Phosphatidylcholine 2-acylhydrolase; Allergen Api m I; Api m 1. | ||
| Stability | Phospholipase A2 although stable at 4°C for 1 week, should be stored below -18°C .Please prevent freeze thaw cycles. | ||
| Formulation | 20mM Tris-HCl, pH 7.2, 1.5M urea and 50% glycerol. | ||
Bee venom phospholipase A2 (PLA) is the main allergen in the bee sting allergy. Bee venom phospholipase A2 (BV-PLA2) is a hydrolytic enzyme which specifically cleaves the sn-2 acyl bond of phospholipids at the lipid/water interface. BV-PLA2 is a 14иC16-kDa glycoprotein, consisting of 134 amino acids and displaying a single carbohydrate side chain at the residue Asn13. It is also held to be responsible for some systemic anaphylactic reactions in bee venom sensitized individuals. BV-PLA2 presents 3 peptide and a glycopeptide T cell epitopes, which are recognized by both allergic and non-allergic bee venom sensitized subjects. PLA is able to elicit both IgE mediated allergy and normal immunity to bee sting which usually is associated with high affinity IgG4 anti-PLA antibodies.
Purified by proprietary chromatographic technique.
Phospholipase A2 although stable at 4°C for 1 week, should be stored below -18°C .Please prevent freeze thaw cycles.