0.05 mg         $215

0.1 mg           $320

0.5 mg           $1,350

1 mg              $2,050

>1 mg            Contact

Amount          Price

Shipping = $35

98% Pure Streptavidin, His Tagged

E. coli derived recombinant His-Streptavidin is made from the streptavidin gene from Streptomyces avidinii.  LS1909B is a tetramer and each monomer contains a His-Tag.

Certificate of Analysis

• Greater than 98% streptavidin is present in tetramer formation, assayed by non-heat denatured SDS PAGE
• Biotin-binding activity: >16 U/mg (Green’s modified assay)
• His-tag binding efficiency: complete protein retention on NTA resin