Recombinant Streptomyces avidinii SA Protein

• Cat.No.: SA-05S
• Product Overview: Recombinant tag-free Streptavidin (aa 25-183) from Streptomyces avidinii was expressed in E. coli.

Specification

• Species: Streptomyces Avidinii
• Source: E.coli
• ProteinLength: 25-183
• Description: Streptavidin (SA) is a tetrameric protein originating from the bacterium Streptomyces avidinii. Each subunit of the streptavidin tetramer can associate with one biotin small vitamin molecule. Although the SA-biotin interaction is non-covalent, it has an extremely high affinity (Kd ~10-14 M). The SA-Biotin complex is highly thermostable and resistant to extreme pH, denaturing reagents, and enzyme degradation. By targeting biotin to biomolecules this interaction with SA can be exploited in a number of biochemical assays.
• Stability: One year at -70 centigrade from dare of shipment.
• Storage: Store product at –70 centigrade. For optimal storage, aliquot target into smaller quantities after centrifugation and store at recommended temperature. For most favorable performance, avoid repeated handling and multiple freeze/thaw cycles.
• Concentration: 0.28 μg/μL
• Storage Buffer: 50 mM Na2HPO4 pH7.5, 300 mM NaCl, 10% glycerol, and 1 mM DTT.
• Shipping: Dry Ice

Gene Information

• Official Symbol: SA
• Synonyms: SA; streptavidin