CST, 36777S, Streptavidin (PE Conjugate)

Avidin and Biotin for studying in the research area. Storage Store at 4°C. This product is stable for 12 months after receipt and is supplied in 100 mM sodium phosphate (pH 7.4), 100 mM NaCl, and 2 mM NaN 3 . If further dilution of the conjugate is required, use diluted material within one month. Protect from light. Avoid multiple freeze/thaw cycles . Specificity / Sensitivity Streptavidin has a remarkably high affinity for its natural ligand, biotin. The complex and irregular structure of the biotin-binding site makes it highly optimized for biotin binding and confers great specificity to the streptavidin-biotin complexes (4). Source / Purification Streptavidin is a protein that is derived from the bacteria . Streptavidin (PE Conjugate) is purified by SEC-HPLC. Background Streptavidin is a 53 kDa homotetramer isolated from for use in isolation and detection bioassays (3). Each streptavidin subunit forms high affinity non-covalent bonds with the vitamin biotin. Because of its strong non-covalent interaction with biotin, streptavidin can be used to isolate and detect biotinylated proteins (1,2).