Streptavidin 蛋白

Streptavidin Protein is the recombinant Streptavidin, expressed by E. coli , with tag Free labeled tag. ,

>15 U/mg protein, 1 U is defined as the quantity of protein that binds 1 microgramme.

Others

E. coli

Tag Free

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Approximately 16 kDa

Greater than 95% as determined by reducing SDS-PAGE.

无菌粉末

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.

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It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.