Recombinant Streptavidin, Liquid (rStreptavidin,Liquid)
MAEAGITGTW YNQLGSTFIV TAGADGALTG TYESAVGNAE SRYVLTGRYD SAPATDGSGT ALGWTVAWKN NYRNAHSATT WSGQYVGGAE ARINTQWLLT SGTTEANAWK STLVGHDTFT KVKPSAAS
Streptavidin is a tetrameric protein composed of identic subunits. Each subunit binds one biotin molecule with a KD of ~1×10-15 M. The preparation contains an N- and C-terminal shortened variant (core streptavidin) with improved properties concerning homogeneity, solubility, resistance towards proteolytic degradation and accessibility of the biotin binding pocket as compared to native streptavidin.
Sterile Colorless liquid.
Supplied as a 0.2 um filtered concentrated sterile solution in 20 mM potassium dihydrogen phosphate buffer, pH 6.5.
Less than 0.1 EU/ug of rStreptavidin as determined by LAL method.
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 24 months from date of receipt, -20 to -70 °C as supplied.- Refer to lot specific COA for the Use by Date when stored at ≤ -20 °C as supplied.
> 98 % by SDS-PAGE and HPLC analyses
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