$75.00Catalog Number: PTN791-5mgSize: 5mg

Streptavidin

Streptavidin Recombinant

Streptavidin Streptomyces Avidinii Recombinant produced in E.Coli.
The molecular weight per tetramer is approximately 53kDa.
Extinction coefficient per subunit: 41326 M-1 cm-1.

Accession

P22629

Formulation

Lyophilized in 10mM potassium phosphate buffer pH 6.5.

Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Proteolytic Activity

< 10-3 U/mg protein (Azocoll, 25 oC, 24 h, pH 8.0).

Purity

Greater than 95.0% as determined by SDS-PAGE.

Solubility

It is recommended to reconstitute the lyophilized Streptavidin in sterile 18MΩ-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Source

Escherichia Coli.

Specific Activity

> 17U/mg (one unit binds 1 ug D-biotin at pH 8.9).

Stability

Streptavidin is shipped at ambient temperature, upon arrival store at -20oC.

Quantity

$75.00

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