Streptavidin Native Protein Summary
Description |
Native Streptavidin. (Accession #: P22629) |
Preparation Method |
Streptavidin Peroxidase was prepared from chromatographically purified streptavidin. Streptavidin Peroxidase was assayed by immunoelectrophoresis resulted in a single precipitin arc against anti-Peroxidase and anti-Streptavidin. |
Protein/Peptide Type |
Native Protein |
Purity |
Immunoelectrophoresis (IEP) |
Applications/Dilutions
Dilutions |
- Western Blot 1:10000-1:40000
- ELISA 1:20000-1:200000
- Immunohistochemistry 1:100-1:5000
|
Application Notes |
Streptavidin Peroxidase can be utilized in Immunohistochemistry, Western Blotting, and ELISA experiment formats in combination with the proper substrate. NOTE: Do NOT add Sodium Azide (it inhibits HRP irreversibly). |
Packaging, Storage & Formulations
Storage |
Store lyophilized antibody at 4C in the dark. Aliquot reconstituted liquid and store at -20C. Avoid freeze-thaw cycles. |
Buffer |
Lyophilized from 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2, 10 mg/mL Bovine Serum Albumin (BSA) - Immunoglobulin and Protease free |
Preservative |
0.01% Gentamicin Sulfate |
Concentration |
LYOPH |
Purity |
Immunoelectrophoresis (IEP) |
Reconstitution Instructions |
Reconstitute with 1.0 ml deionized water. |
Notes
For extended storage, aliquot reconstituted liquid and freeze at -20 C or below. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4 C as an undiluted liquid. Dilute only prior to immediate use.
Alternate Names for Streptavidin Native Protein
Background
Streptavidin is isolated from bacteria, Streptomyces avidinii, and has an exceptionally high binding affinity for B7 (biotin). Streptavidin is a tetrameric protein capable of binding 4 biotin groups to each molecule of streptavidin. While streptavidin has identical binding properties as avidin, it lacks the glycoprotein portion of the molecule and therefore shows less non-specific binding. Streptavidin is a slightly smaller molecule with a molecular weight of approximately 53.6 kDa. The sequence of avidin only shows 30% homology with streptavidin, and anti-avidin and anti-streptavidin antibodies are not immunologically cross reactive. Horseradish Peroxidase (HRP) is an enzyme that utilize organic peroxide compounds as electron donors. Naturally provides protection for plants against pathogens, but can be utilized in molecular biology to convert various substrates to detectable compounds (such as in Western Blotting and ELISAs).
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are
guaranteed for 3 months from date of receipt.
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