Streptavidin (Agarose)

Catalog No : USB-S7973-71H
503.46€
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Product name Streptavidin (Agarose)
Catalog No USB-S7973-71H
Supplier’s Catalog No S7973-71H
Supplier US Biologicals
Source antigen S. avidinii
Reactivity
Cross reactivity
Applications
Molecular weight
Storage 4°C Do Not Freeze
Other names
Grade
Purity
Form Supplied as a liquid in 10mM HEPES, pH 8.0, 0.15M sodium chloride, 0.08% sodium azide. Labeled with Agarose.
Reactivity life 12 months
Note For reserch purpose only
Description Agarose Streptavidin (S7973-71H) is prepared by conjugating streptavidin to heat stable, cross-linked 4% agarose gel beads. To ensure minimal steric interference and low nonspecific binding, streptavidin is conjugated through a hydrophilic spacer arm. The procedure we have developed for coupling streptavidin to agarose preserves the biotin binding activity of the streptavidin. Unlike cyanogen bromide coupling, our procedure does not produce conjugates which can be leached from the gel with solutes such as Tris buffer. Our procedure also does not generate charged groups on the gel that can bind proteins nonspecifically. Protein concentration is 1mg streptavidin per ml settled agarose beads. The product is supplied as a 1:1 suspension in buffer. The binding capacity is approximately 1 mole biotinylated HRP per mole of streptavidin. This product can be used to separate biotinylated macromolecules from unbiotinylated materials or for solid phase binding assays. Applications: Suitable for use in Affinity Chromatography. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. Aliquots are stable for 6 months. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.