Streptavidin (5 nm Gold Colloid) (80R-S103GD)
Streptavidin-5 nm Gold Colloid conjugate
Overview
Overview
| Synonyms | Streptavidin-Colloidal Gold (5nm) |
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Specifications
| Tag/Conjugate | Gold Colloid |
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| Form & Buffer | TBS, pH 8.2, with 1% BSA, 15mM NaN3, and 30% glycerol. |
Storage & Safety
| Storage | Store at 4 deg C. DO NOT FREEZE. Keep away from light. |
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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 (e.g. guanidinium chloride), detergents (e.g. SDS, Triton) and proteolytic enzymes. |
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