Streptavidin Native Protein

Images

 
Western Blot: Streptavidin Full length Protein [NBP2-29370] - Lane 1: Human IL-7. Lane 2: none. Load: 50 ng per lane. Primary antibody: Human IL-7 Biotin Conjugated antibody at 1:1,000 for overnight at 4C. Secondary ...read more

Product Details

Summary
Reactivity BaSpecies Glossary
Applications WB, ELISA, IHC
Conjugate
HRP
Concentration
LYOPH

Order Details

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.

Packaging, Storage & Formulations

Storage
Store at 4C.
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

  • SA V1; SA V2; Streptavidin V1; Streptavidin V2
  • Streptavidin

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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Video Protocols

WB Video Protocol

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