Strep-Tactin®XT 4Flow® high capacity column

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Gravity flow column to purify Strep-tag®II or Twin-Strep-tag® fusion proteins
Strep-Tactin®XT 4Flow® high capacity column

Strep-Tactin®XT 4Flow® high capacity columns contain a 4% agarose coupled with the streptavidin variant Strep-Tactin®XT and are applicable for purification of Strep-tag®II or Twin-Strep-tag® fusion proteins via gravity flow. Due to the broad pH compatibility, excellent pressure stability, outstanding target purity (> 95%), and highest binding affinity, the resin is recommended for all protein classes, especially for low abundant or challenging proteins. The low concentrated agarose enables the simple attachment of larger proteins to the stationary phase, making it particularly suitable for purification of high-molecular-weight targets. In addition, Strep-Tactin®XT 4Flow® high capacity allows the application of denaturing agents such as urea. In comparison to Strep-Tactin®XT 4Flow®, Strep-Tactin®XT 4Flow® high capacity has a higher density of immobilized Strep-Tactin®XT, which leads to a 2-fold higher yield of purified protein.

To reduce the waiting period during the sample and buffer application, the use of the application aid WET FRED is recommended.

Specifications

  • Bead Size: 50 - 150 µm spherical
  • Dynamic Protein Binding Capacity: 14 mg/ml resin
  • Form: Pre-packed gravity flow column
  • Possible Application: Protein purification of Strep-tag®II and Twin-Strep-tag® fusion proteins
  • Specificity: Twin-Strep-Tag® and Strep-tag®II
  • Support: 4% agarose, crosslinked

Videos

Protein Purification with Large Sample Volumes using Wet Fred

Color based functionality check - Strep-Tactin® and Strep-Tactin®XT columns compared

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