Streptavidin is a tetrameric protein composed of identic subunits. Each subunit binds one biotin molecule with a high degree of affinity and specificity with KD of ~1x10-15 M which makes it one of the strongest known non-covalent interaction. The preparation contains an N- and C-terminal shortened variant (core streptavidin) with improved properties concerning homogenity, solubility, resistance towards proteolytic degradation and accessibility of the biotin binding pocket as compared to native streptavidin.
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Name Catalog # Size Streptavidin 2-0203-100 10 x 100 mg Streptavidin 2-0203-100 100 mg Streptavidin 2-0203-100 5 x 100 mg Streptavidin 2-0203-100 50 x 100 mg Streptavidin 2-0203-101 1 g Streptavidin 2-0203-101 10 x 1 g Streptavidin 2-0203-101 5 x 1 g Streptavidin 2-0203-105 2 x 5 g Streptavidin 2-0203-105 5 g Streptavidin 2-0203-105 2 x 5 g Streptavidin 2-0203-105 5 g