Streptavidin is a tetrameric protein purified from the bacterium Streptomyces avidinii, and exhibits high binding affinity for biotin.
Able to bind one molecule of biotin with each subunit.
Streptavidin (PI=6.0-7.5) has lower level of non-specific binding to various biological components at physiological pH than avidin (PI=7.4), resulting from its isoelectric point (PI).Streptavidin is useful in affinity chromatography, ELISA, immunohistochemistry and Western Blotting.
特徴
This protein carries no "tag".
The protein has a calculated MW of 13.8 kDa.
The protein migrates as 15 kDa under reducing (R) condition (SDS-PAGE).
仕様
容量：100ug
Source：Streptavidin Protein-Alexa Fluor 647 (STN-NA119) is expressed from E. coli cells.
