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CD9 Fab-Strep, human

Low affinity Fab fragment fused to a Twin-Strep-tag® and specific for human CD9
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CD9 Fab-Strep is a recombinantly expressed low affinity Fab fragment fused to a Twin-Strep-tag®. Due to its low affinity for the target, an increase in avidity is required to ensure sufficient binding to the cell surface. Combining Fab-Streps with a Strep-Tactin® backbone leads to the formation of complexes that stably bind to exosomes. For traceless affinity isolation of exosomes (Fab-TACS® for exosomes), Fab-Streps are combined with Strep-Tactin® TACS Agarose columns.


Endotoxin Level: ≤ 0.1 EU/µg by LAL test
Form: Lyophilized
Possible Application: Affinity chromatographic exosome isolation
Purity: ≥ 90%
Reconstitution: Reconstitute in 1 ml buffer, e.g. 1x PBS containing 1 mM EDTA and 0.5% BSA, for a final concentration of 50 µg/ml.
Specificity: Human CD9

Shipping information

Storage: 2-8 °C; reconstituted: -80 °C
Stability: 6 months after shipping
Shipping: Room temperature or blue ice


Strep-Tactin® TACS Agarose Column
Gravity flow column suitable for traceless affinity cell and exosome isolation
Strep-Tactin® Magnetic Microbeads
Strep-Tactin® multimers conjugated with magnetic microbeads
Strep-Tactin® PE
Fluorophore-conjugated Strep-Tactin® for cell staining
Strep-Tactin® TACS Agarose
50% suspension for traceless affinity cell and exosome isolation

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CD9 Fab-TACS® Exosome Agarose Column Starter Kit, human
Label-free isolation of CD9+ exosomes from cell culture media, serum or plasma