Streptavidin protein (PE) (65C-CE0313)
Purified homogeneous preparation of PE conjugated Streptavidin protein
Overview
Overview
| Species | Streptomyces avidinii |
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| Protein Type | Binding Protein |
| Applications | FC, IF |
Specifications
| Method of Purification | Streptavidin protein (PE) was purified by Protein A affinity chromatography. |
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| Tag/Conjugate | PE |
| Form & Buffer | Lyophilized from 0.02M K3PO4, pH 7.2, with 0.15M NaCl, 10 mg/ml BSA, and 0.01% NaN3. Immunoglobulin and protease free. |
Usage & Assay Information
| Usage Recommendations | FC: 1:100-1:250, IF: 1:100-1:250 |
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Storage & Safety
| Storage | Store at 4 deg C until reconstitution. Following reconstitution aliquot and freeze at -20 deg C for long term storage. Avoid repeated freeze/thaw cycles. |
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| Biohazard Information | This product contains sodium azide as preservative. Although the amount of sodium azide is very small appropriate care must be taken when handling this product. |
General Information
| Biological Significance | Streptavidin is a 52,800 dalton tetrameric protein purified from the bacterium Streptomyces avidinii. It has an extraordinarily high affinity for biotin (also known as vitamin B7); the dissociation constant (kDa) of the biotin-streptavidin complex is on the order of ˜10-14 mol/L, making it one of the strongest non-covalent interactions known in nature. It is used extensively in molecular biology and bionanotechnology as, in addition to the high affinity, biotin-binding is resistant to extremes of pH, temperature, organic solvents, denaturants, detergents and proteolytic enzymes. |
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