our services
our products
Quotations & Ordering:

For quotations, please use our online quotation form, and you may also contact us by


+1-888.733.6849 (Toll-free)
+1-617.299.7367 (Int’l))



Our customer service representatives are available 24 hours, Monday through Friday to assist you.
Streptavidin List
    Cat No.NameDescriptionSizeQtyPriceAction
    PRPS-290StreptavidinThe Streptavidin preparation contains an N- and C-terminal shortened variant (core streptavidin) with improved properties concerning homogeneity, solubility, resistance towards proteolytic degradation and accessibility of the biotin binding pocket as compared to native streptavidin. Streptavidin has a molecular weight of 55kDa.$65Add to Cart
    PRPS-798StreptavidinStreptavidin Streptomyces Avidinii Recombinant produced in E.Coli. The molecular weight per tetramer is approximately 52kDa. Extinction coefficient per subunit: 41326 M-1 cm-1.$65Add to Cart
    PRPS-628Streptavidin, HisStreptavidin Streptomyces Avidinii Recombinant fused to N-terminal His-Tag produced in E.Coli is a single, non-glycosylated polypeptide chain containing 167 amino acids and having a molecular mass of 17 kDa.$65Add to Cart
    PRPS-345Streptavidin-NCRecombinant Streptavidin-NC produced in E.Coli is a single, non-glycosylated, polypeptide chain having a molecular mass of 24kDa. Recombinant Streptavidin-NC not only binds to nitrocellulose membrane readily but also preserves the full biotin binding ability.$65Add to Cart



      Custom Monoclonal Antibody
      MassAb Technologies
      Free Trial Custom Polyclonal Antibody
      You will receive free purified antibodies for validation
      Custom Peptides Synthesis

      Start from $40/each

      new technologies

      Optimized for enhanced
      expression levels
      XPromoter 2.0
      E.coli/insect cells/293 & CHO

      3 in 1 expression system
      MassAb Technologies

      Cover All Epitopes