Streptavidin, a tetrameric protein secreted by Streptomyces avidinii, binds tightly to a small growth factor biotin. It finds wide use in molecular biology through its extraordinarily strong affinity for the vitamin biotin; the dissociation constant (Kd) of the biotin-streptavidin complex is on the order of ~10-15 mol/L. The high affinity recognition of biotin and biotinylated molecules has made streptavidin one of the most important components in diagnostics and laboratory kits. Recombinant His tagged streptavidin was expressed in E.coli and purified by using conventional chromatography techniques.
Streptomyces avidinii, His tagged, Recombinant, E. coli. Accession: CAA27265.1
Storage and Stability:May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months after receipt at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
仕様
Size：100ug
Source Antigen：Streptomyces avidinii, His tagged, Recombinant, E. coli
Grade：Highly Purified
Purity：≥95% by SDS-PAGE under reducing conditions
Form：Supplied as a liquid in 20mM Tris-HCl, pH 7.5.
