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Thermo Scientific™ Pierce™ Monomeric Avidin Agarose
Reversibly bind biotinylated proteins and other ligands with monomers of avidin covalently attached as individual subunits onto beaded resins.
Brand: Thermo Scientific™
417.35 EUR valid until 2025-03-21
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Description
Thermo Scientific™ Pierce Monomeric Avidin Resins and Kit enable gentle, reversible-binding and purification of biotinylated proteins.
Pierce Monomeric Avidin Kit and Resins are unique among biotin-binding supports in allowing non-denaturing affinity purification of biotinylated molecules. The immobilized monomeric avidin protein binds biotin with high specificity and moderate affinity, allowing non-biotin molecules to be washed away and then the bound biotin-labeled molecules to be competitively eluted using 2mM biotin in phosphate buffered saline (PBS). This technique provides the gentlest elution conditions for biotinylated protein purification and avoids the contamination and other problems associated with traditional avidin and streptavidin methods. The monomeric avidin column can then be regenerated by using 0.1M glycine to strip the column of residual bound biotin without losing the ability to bind another biotinylated sample.With typical avidin or streptavidin, the biotin-binding affinity (Kd = 10-15M) is so great that purification with these traditional media require denaturing conditions for elution, such as 8M Guanidine·HCl at pH 1.5 or boiling in reducing SDS-PAGE sample loading buffer. In addition to their adverse effects on the biotinylated protein of interest, such harsh elution conditions typically cause extraneous proteins (i.e., the avidin or streptavidin subunits) to strip from the resin and co-elute with the desired purification product. By contrast, when avidin is coupled to a resin (e.g., crosslinked beaded agarose or UltraLink Resin) as the subunit monomer, its specificity for biotin is retained, but its biotin-binding affinity decreases to a level (Kd = 10-8M ) that is conducive to subsequent elution.
Highlights:
Non-denaturing – purifies biotinylated products using mild elution conditions (2mM free biotin)
Reusable – Monomeric Avidin Agarose can be regenerated and reused at least 10 times, with only a marginal loss in biotin binding capacity (approximately 2.5% decrease per regeneration)
Specific – retains biotin-binding specificity and low nonspecific binding of native avidin
Flexible – bind samples in a variety of physiological buffers and elute either with 0.1M glycine or by competition with 2mM biotin
Good binding capacity – greater than 1.2mg biotinylated BSA/mL of resin
Convenient – purchase standalone agarose or UltraLink™ Resins or a complete purification kit with prepacked column and buffers
Item-Specific Features:
- Agarose Resins and Kit are based on crosslinked 4% beaded agarose
- UltraLink Resin is an acrylamide support (UltraLink Biosupport)
Includes:
Kit contains a pre-packed column of Monomeric Avidin Agarose and binding and elution buffers.
Specifications
| ≥1.2 mg Biotinylated BSA Binding per mL Resin | |
| Pierce™ | |
| Biotin-Tagged Molecule | |
| Avidin | |
| Affinity, Agarose Resin |
| Upon receipt store product at 4°C. Product is shipped at ambient temperature. | |
| 5 mL | |
| Agarose | |
| Bottle |
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Product Title
Thermo Scientific™ Pierce™ Monomeric Avidin Agarose > Agarose resin; 5mL
For Research Use Only. Not for use in diagnostic procedures.
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