Native金黄色葡萄球菌蛋白A
参阅全部 Protein A 蛋白酶
> 95 % n/a.
Protein A is chromatographically pure and shows predominantly a single band by SDS-PAGE.
Native
Full length protein
No
Native
Staphylococcus aureus
56 kDa
Our Abpromise guarantee covers the use of ab7399 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
应用
ELISA
Western blot
Liquid
Molecular Weight: 42,000 daltons
Extinction Coefficient: 0.1% at 280 nm is 0.14 (E0.1% of 0.14)
浓度
1 mg 浓度为 1 mg/ml
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
gG-binding protein A
Immunoglobulin G binding protein A
SPA
Staphylococcal protein A
Protein A is a surface protein of S.aureus which binds IgG molecules by their Fc region. In serum, the bacteria will bind IgG molecules in the wrong orientation on their surface which hinders opsonization and phagocytosis. Mutants of S. aureus lacking protein A are more efficiently phagocytosed in vitro, and mutants in infection models have diminished virulence. Due to its affinity for the Fc region of many mammalian immunoglobulins, protein A is considered a universal reagent in biochemistry and immunology.
Secreted; cell wall.
