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  Unmatched Protein Purification system
Strep-tag® vs His-tag

Both, Strep-tag® and His-tag, are widely used tools for affinity purification via a peptide tag. But when it comes to purity and versatility in applications, some differences between both systems are obvious. Comparison Strep- and His-tag

Especially, the newly engineered Strep-Tactin®XT (3rd gen.) in combination with the Twin-Strep-tag® has an improved binding affinity which enables a broad variety of different applications:
  Batch purification Membrane proteins
  Purification under denaturing conditions Assay applications
  Purification of low abundant proteins Metallo-proteins
Strep-tag®XT Superflow® High Capacity (3rd gen.)
High affinity meets high capacity!
Strep-Tactin®XT high capacity is the new resin member (3rd generation) in the Strep-Tactin® resin family. It perfectly combines the benefits of the high affinity Strep-Tactin®XT resin with a high protein capacity. Read more
GET STARTED! The Strep-Tactin®XT Starter Kit provides all you need for protein purification and Western Blot detection. Pricing
  • Highest affinity available among affinity purification systems
  • Higher protein yields compared to all other Strep-Tactin® resins
  • Small elution volumes results in concentrated protein
  • Cost efficent: lower price/mg protein
  • Problem-free change from Strep-Tactin® to Strep-Tactin®XT system
  • Äkta purification compatible
Binding of Strep-Tactin®XT to Twin-Strep-tag® is higher compared to Strep-Tactin®

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