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| Product Name | Streptavidin (Sepharose 4B) |
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| Description | Streptavidin (MW ~66kD) binds specifically with biotin (244D). It is derived from the bacterium Streptomyces avidinii and bears a remarkable similarity to chicken egg-white avidin both in three-dimensional structure and its ability to bind biotin with extremely high affinity (Kd=10e-15M). It is a tetrameric protein capable of binding up to 4 biotin molecules. Unlike avidin, Streptavidin is non-glycosylated and is essentially neutral in charge, whereas avidin (pH 10.5) is basic at neutral pH. Because of this, streptavidin has considerably less non-specific binding resulting in less background. It has replaced avidin as the reagent of choice for most applications where protein interactions may cause background. Streptavidin Sepharose: The same high performance streptavidin media used in Streptavidin columns for fast, reliable purification of biotinylated compounds. Ideal for packing into columns when larger scale purifications are required. Extremely useful for exploiting either the stro |
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| Size | 1ml, 5ml, 10ml |
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| Concentration | n/a |
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| Applications | n/a |
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| Other Names | n/a |
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| Gene, Accession, CAS # | n/a |
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| Catalog # | S7973-89E |
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| Order / More Info | Streptavidin (Sepharose 4B) from UNITED STATES BIOLOGICAL |
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| Product Specific References | n/a |
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