Streptavidin(Type 3)

• Cat.No.: Streptavidin-2941S
• 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
• Form: 20mM PB, pH7.4
• Bio-activity: ≥15.0U/mg(1U is bound to 1μg biotin)
• Storage: Store at 2-8°C.
• Concentration: 5mg/mL