HIS-Select® Nickel Affinity Gel is an immobilized metal ion affinity chromatography (IMAC) product, used for the purification of His-tagged proteins. While the unique, non-charged, hydrophilic linkage of the proprietary quadridentate NTA chelate group to the beaded agarose charged with nickel ensures high selectivity for small to medium scale His-tag protein purification, it also results in reduced non-specific binding of other proteins. HIS-Select Nickel Affinity Gel is selective for recombinant proteins with His-tags and exhibits low non-specific binding of other proteins. The selectivity can be modulated with the inclusion of imidazole during chromatography.
HIS-Select® Nickel Affinity Gel is durable and can capture the recombinant proteins with histidine tags at a high flow rate. Recombinant proteins with histidine tags are bound using either native or denaturing conditions.
HIS-Select® Nickel Affinity Gel has been used in the purification of recombinant proteins like EF-hand calcium-binding protein (S100A14), LIM homeobox transcription factor 1 alpha protein, sigma-1 receptor as well as harpin, stable protein 1 (SP1), and BCR-ABL fusion protein.
Features and Benefits
- High selectivity for higher purity.
- Unique non-charged hydrophilic linkage reduces non-specific binding.
- Binding capacity for histidine-tagged protein is greater than 15 mg/mL.
- Binding under denaturing or non-denaturing conditions.
- One-step purification.
- Minimizes unwanted ionic interactions.
- Minimal nickel leaching.
- Bead size: 45-165 μm.
It is also available with the EZview™ technology (Product Code E3528).
1:1 suspension in a 20% ethanol solution
Storage and Stability
HIS-Select Nickel Affinity Gel is stable for at least one year when stored properly. The HIS-Select Nickel Affinity Gel should be cleaned after each use and an antimicrobial agent such as 20% ethanol should be added to the storage buffer.
HIS-Select is a registered trademark of Sigma-Aldrich Co. LLC