Product nameNatural Protein A (Alkaline Phosphatase)
See all Protein A proteins and peptides
Protein lengthFull length protein
Our Abpromise guarantee covers the use of ab7345 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Immunohistochemistry (Frozen sections)
Additional notesProtein A Concentration: 1.0 mg/ml (by UV absorbance at 280 nm) This product has been assayed against 1.0 ug of Human IgG in a standard capture ELISA using pNPP (p-nitrophenyl phosphate) as a substrate for 30 minutes at room temperature. A working dilution of 1:500 to 1:2,000 of the stock concentration is suggested for this product. Optimal titers for other applications should be determined by the researcher.
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Preparation and Storage
Stability and Storage
Shipped at 4°C. Store at +4°C. Do Not Freeze.
Preservative: 0.1% Sodium azide
Constituents: 0.00136% Zinc chloride, 0.0095% Magnesium chloride, 0.79% Tris HCl, 50% Glycerol, 0.87% Sodium chloride, 1.5% BSA
BSA is IgG and Protease free
- gG-binding protein A
- Immunoglobulin G binding protein A
- Staphylococcal protein A
RelevanceProtein 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.
Cellular localizationSecreted; cell wall.
ab7345 has not yet been referenced specifically in any publications.