| Species : |
Streptomyces Avidinii |
| Source : |
E.coli |
| Protein Length : |
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 |
