Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Molecular Probes™ CaptAvidin™ Agarose (Sedimented Bead Suspension)

CaptAvidin™ Agarose (Sedimented Bead Suspension)

Manufacturer:  Molecular Probes™ C21386


Catalog No. C21386

Add to cart



CaptAvidin™ biotin-binding protein conjugated to agarose is designed for use in affinity chromatography. CaptAvidin™ biotin-binding protein contains a nitrated tyrosine in its biotin-binding site. This chemical modification permits dissociation of the avidin-biotin complex under milder conditions than the traditional avidin-biotin complex. At pH 4.0, CaptAvidin™ biotin-binding protein binds biotin tightly with a Ka of ∼109M-1. This association can then be reversed at pH 10, allowing complete dissociation of the avidin-biotin complex. This is in contrast to the harsh conditions (8 M guanidine hydrochloride, pH 1.5) needed to dissociate the avidin-biotin complex.


Wet Ice
Safety and Handling

Safety and Handling

Product Certifications


Provide Content Correction

The Fisher Scientific Encompass Program offers items which are not part of our distribution portfolio. These products typically do not have pictures or detailed descriptions. However, we are committed to improving your shopping experience. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit

For Research Use Only. Not for use in diagnostic procedures.