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Strep-Tactin® Magnetic Microbeads

Strep-Tactin® multimers conjugated with magnetic microbeads
Quantity Unit price
From 10
Please note: Strep-Tactin® Magnetic Microbeads were specifically developed for cell isolation. For protein purification, we offer MagStrep® Strep-Tactin®XT beads and MagStrep® Strep-Tactin® beads, which have an agarose coating that ensures a high protein binding capacity. 

Strep-Tactin® Magnetic Microbeads are microspheres covalently linked to Strep-Tactin®. They are suitable for selecting cells that express a Strep-tag®II or Twin-Strep-tag® - fusion protein on the surface. Another approach is the isolation of cells via a strep-tagged protein that specifically binds to a target cell of interest. This can be e.g. an antigen for B cell selection, an MHC  class I molecule for T cell selection or any type of antibody for a cell of choice. For this approach, Strep-Tactin® Magnetic Microbeads have to be complexed with a strep-tagged protein to generate a selection reagent. After the cells are isolated, biotin addition will cause the release of Strep-Tactin® Magnetic Microbeads from the cell surface.


Bead Size: 1 - 3 µm
Detector/Ligand: Strep-Tactin®
Form: Suspension in DPBS
Format: Magnetic beads
Possible Application: Cell isolation (magnetic)
Recommended Usage: 15 µl per 1 x 10^7 total cells

Shipping information

Storage: 2-8 °C; Do not freeze!
Stability: 6 months after shipping
Shipping: Room temperature


Biotin stock solution
Content: 1 ml
100 mM concentrated biotin for dissociation of Twin-Strep-tag® from Strep-Tactin® suitable for cells
StrepMan Magnet
Permanent magnet for cell isolations using Strep-Tactin® Magnetic Microbeads