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Render Timestamp: 2024-11-20T11:17:29.775Z
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XML generation date: 2024-09-20 06:17:42.950
Product last modified at: 2024-11-18T12:45:43.656Z
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Streptavidin (Magnetic Bead Conjugate) #5947

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    Product Information

    Product Usage Information

    Add 10 μl of well-vortexed beads to 200 μl of cell lysate at 1 mg/ml in 1X Cell Lysis Buffer (10X) #9803. See protocol for more details.

    For bead washing and subsequent elution of immunocomplexes, the beads can be separated from solution using our 6-Tube Magnetic Separation Rack #7017. Place the tubes containing the beads in the Magnetic Separation Rack and wait 1 to 2 minutes for the solution to clear before carefully removing the supernatant. Remove the tubes from the Magnetic Separation Rack, add new solution and resuspend the beads by gently vortexing or rocking the tube.

    Storage

    Supplied in PBS Buffer (pH 7.2), 0.1% Tween® 20. Store at 4°C. Do not aliquot the antibodies.

    Protocol

    Product Description

    Streptavidin (Magnetic Bead Conjugate) is useful for the precipitation of biotinylated proteins (1,2). Recombinant streptavidin is immobilized by the covalent binding of primary amino groups with formylbenzamide-modified magnetic bead.

    Specificity / Sensitivity

    Streptavidin has a remarkably high affinity for its natural ligand, biotin. The complex and irregular structure of the biotin-binding site makes it highly optimized for biotin binding and confers great specificity to the streptavidin-biotin complexes (4).

    Source / Purification

    Streptavidin is expressed in Escherichia coli.

    Background

    Streptavidin is a 53,000 dalton tetrameric protein purified from the bacterium Streptomyces avidinii (3). Each subunit binds to biotin with extremely high affinity. Because of its strong non-covalent interaction with biotin, streptavidin can be used to isolate biotinylated proteins (1,2).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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