Purified recombinant protein streptavidin from Streptomyces avidinii, Tag free, expressed in E.coli, 1 mg
Species Streptomyces avidinii
Expression Host E. coli
Concentration >0.05 µg/µL as determined by spectrophotometrically（A280） method
Purity > 98% as determined by SDS-PAGE and Coomassie blue staining
Buffer Lyophilized from a solution containing 20 mM PB, pH 6.5
Note For testing in cell culture applications, please filter before use. Note that you may experience some loss of protein during the filtration process.
Storage Store at -20°C.
Stability Stable for 12 months from the date of receipt of the product under proper storage and handling conditions. Avoid repeated freeze-thaw cycles.
Bioactivity > 17 U/mg (one unit binds 1 µg D-biotin)
