Streptavidin (HRP)

Catalog No : USB-S7973-97A
389.67€
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Product name Streptavidin (HRP)
Catalog No USB-S7973-97A
Supplier’s Catalog No S7973-97A
Supplier US Biologicals
Source antigen Streptomyces avidinii
Reactivity Assay by immunoelectrophoresis resulted in a single precipitin arc against anti-peroxidase and anti-streptavidin. No reaction was observed against anti-avidin.
Cross reactivity
Applications FLISA, IP, WB
Molecular weight
Storage -20°C
Other names
Grade Purified
Purity Purified by ion exchange chromatography.
Form Supplied as a liquid in PBS, pH 7.2, 10mg/ml BSA (IgG and Protease Free), 0.01% gentamicin sulfate. Labeled with horseradish peroxidase (HRP).
Reactivity life 12 months
Note For reserch purpose only
Description Streptavidin is a non-glycosylated polypeptide chain having a molecular mass of 240kD and containg 4 subunits each with a binding site for biotin. The neutral isoelectric point of Streptavidin and the high affinity of the biotin-streptavidin interaction result in a very quick reaction with a high signal to noise ratio. Streptavidin does not react non-specifically with endogenous lectins when used in immunological assays on cells and tissues. Streptavidin is non- or very low charged around pH 7, reducing NSB to charged molecules to a very limited level. Applications: Suitable for use in ELISA, Western Blot and Immunohistochemistry. Other applications not tested. Recommended Dilution: ELISA: 1:20,000-1:200,000 Western Blot: 1:10,000-1:40,000 Immunohistochemistry: 1:1000-1:5000 Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer. Labeled with horseradish peroxidase (HRP). Sodium azide is a potent inhibitor of peroxidase and should not be added to HRP conjugates. HRP conjugates are sensitive to light.