Recombinant Streptomyces avidinii Streptavidin(Cys)

• Cat.No.: Streptavidin-2940S
• Product Overview: Streptomyces avidinii was first isolated from the broth culture of Streptomyces avidinii as a biotin binding protein. Similar to Avidin, streptavidin consists of four identical subunits in a tetramer, each of which can bind biotin, that is, one molecule of streptavidin can bind four molecules of biotin, and the binding force is very high (Kd~10-15). Compared with avidin, streptavidin has a low isoelectric point and does not contain a sugar group, so its non-specific binding is much lower than that of avidin when used in antigen-antibody detection systems.

Specification

• Species: Streptomyces avidinii
• Source: E.coli
• Tag: Non
• Tag: Non
• Bio-activity: ≥16.0U/mg (1U is bound to 1μg biotin)
• Molecular Mass: 54kDa(13.5kDa/ subunit)
• Purity: ≥95%(SDS-PAGE)
• Storage: Freeze-dried powder -20±5°C, after dissolution to avoid repeated freeze-thaw.
• Reconstitution: Dissolved in distilled water ≥10mg/mL.