General description
Streptavidin is covalently coupled to alkaline phosphatase (AP) for the preparation of streptavidin-AP-conjugate.
Alkaline Phosphatase
Alkaline Phosphatase is often used as a label in enzyme immunoassays. AP converts the sensitive substrate X-phosphate/NBT into a stable, water soluble product.
Application
Streptavidin-AP has been used to detect biotinylated compounds using:
- ELISA
- Immunohistocytochemistry
- Western blot
Physical form
Solution, stablilized in 50 mM Triethanolamine buffer, 3 M NaCl, 1 mM MgCl2, 0.1 mM ZnCl2, 10 mg/ml bovine serum albumin, pH 7.6.
Preparation Note
Working solution: 50 - 1,000 mU/ml (i.e., stock solution can be diluted). Dilute the conjugate stock solution in 100 mM Tris-HCl, 150 mM NaCl, pH 7.5.
Working concentration: Working concentration of conjugate will depend on the application and substrate. Indicated concentrations should be taken as a guideline.
ELISA: 50 - 200 mU/ml (1:5000 - 1:20,000 dilution)
Immunohisto/cytochemistry: 250 - 1,000 mU/ml (1:1000 - 1:4000 dilution)
Western blot: 200 - 500 mU/ml (1:2000 - 1:5000 dilution)
Stability: The concentrated stock solution is stable when stored at 2 to 8°C until the expiration date printed on the label. Do not freeze!
Other Notes
For life science research only. Not for use in diagnostic procedures.
- UPC:
- 41116127
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 11089161001
