| Chromatography technique | Histidine-tagged protein purification |
|---|---|
| Binding Capacity/ml Chromatography Medium | Approx. 40 mg histidine-tagged protein |
| BioProcess resin | Yes |
| Chemical stability | Stable in commonly used aqueous buffers - 0.1 M HCl, 0.1 M NaOH, 8 M urea |
| Licensing | For licensing information, see the Licensing Statements page in the About Us section. |
| Matrix | 6% cross-linked agarose |
| Metal Ion Capacity | ~15 µmol Ni 2+ /ml medium |
| Particle Size | 45 µm-165 µm |
| Particle size, d 50V | ~90 µm |
| Pressure/Flow Specification | Base matrix: 250-400 cm/h, 100 kPa, XK 50/60 column, bed height 25 cm |
| Storage | 4 to 30°C, 20% Ethanol |
| pH stability, CIP | 2–14 |
| pH stability, operational | 3–12 |
Answer:Proteins with accessible polyhistidine tags can bind to its immobilized nickel affinity ligand.
Answer:No. This item is a 5 L bulk resin pack for packing suitable chromatography columns.
Answer:Imidazole-containing elution buffers can compete with histidine-tag interactions, with concentrations optimized for the target.
Cytiva Ni Sepharose 6 Fast Flow is a nickel-charged immobilized metal affinity chromatography resin for purification of proteins carrying an accessible polyhistidine affinity tag. The agarose-based medium enables selective binding of histidine-tagged products under suitable neutral-to-mildly alkaline buffer conditions, followed by controlled elution commonly using imidazole. The 5 L bulk resin pack is intended for packing compatible chromatography columns rather than serving as a prepacked disposable column. Optimize binding and wash conditions to remove host-cell proteins and other impurities while maintaining target recovery. Competing chelators and certain reducing conditions may interfere with metal-mediated binding, so check buffer compatibility and target stability before scaling up. Clarify feed material to reduce fouling, and validate column packing, loading capacity and breakthrough behavior for the particular product. After use, follow resin-specific cleaning, regeneration and storage instructions to limit contamination and metal loss. This nickel-affinity resin is not equivalent to protein A or an ion-exchange medium.
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