Application Note: Anti-Streptavidin Antibody has been tested by ELISA, western blot, and dot blot and is suitable for immunoprecipitation and most immunological methods requiring high titer and specificity.
Concentration Value: 70 mg/mL
ELISA Dilution: 1:20,000-1:100,000
Immunohistochemistry Dilution: 1:1,000-1:5,000
Western Blot Dilution: 1:2,000-1:10,000
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Immunogen: Streptavidin (Streptomyces avidinii)
Physical State: Lyophilized
Purity and Specificity: Anti-STREPTAVIDIN antibody was prepared from monospecific antiserum by a delipidation and defibrination. Assay by immunoelectrophoresis resulted in a single precipitin arc against anti-rabbit serum, purified and partially purified Streptavidin. No cross reactivity occurs against Avidin.
Background: Anti-streptavidin antibody detects Streptavidin, a 60 kDa protein purified from the bacterium Streptomyces avidinii. Streptavidin is a homo-tetrameric protein having a very high affinity for biotin (vitamin B7). Streptavidin bound biotin has a dissociation constant (Kd) on the order of about 10^−14 mol/L. Streptavidin and biotin are used extensively in molecular biology and bionanotechnology due to the resistance of streptavidin-biotin complex to organic solvents, denaturants (e.g. guanidinium chloride), detergents (e.g. SDS, Triton), proteolytic enzymes, and extremes of temperature and pH.
Low Endotoxin: No