Polystreptavidin 350

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Polystreptavidin 350

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#SKU 01041049L

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Product Details

Streptavidin is a tetrameric protein (4 x 13 kDa), which binds very tightly to the small molecule Biotin. The binding constant for this interaction is very high (Ka ~ 1013 M-1) and turns the Streptavidin/Biotin system into a basis of many biochemical applications. Streptavidin-coated surfaces are characterised by very low nonspecific bindings.


More information



  • Abbreviations
  • Polystrep
  • Specification
  • Molecular mass >2,000 – 20,000 kDaBiotin Binding 50% intercept >350 pmol/ml
  • Recommended Use
  • Lateral Flow / Elisa / CLIA
  • Lead Time
  • up to 6 weeks
  • Storage
  • 2 - 8°C

BBI Solutions Brands


The acquisition of DIARECT in June 2020 and their world leading recombinant autoimmune antigen capability immediately enhances BBI’s portfolio and position as a ‘complete’ immunoassay reagent supplier. This further enhances BBI’s position as the world’s largest diagnostics components company with a market leading antigen portfolio.


Maine Biotechnology Services brings 27 years of knowledge, experience, process development, and project management to our customers to ensure the best possible antibodies for any application. As antibody development goals in the biotechnology and pharmaceutical industry have evolved the acquisition of MBS will help BBI further meet and exceed our customers needs.


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