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| Product Name | GMP-Grade Recombinant Enterokinase with ≤10 EU/kU Endotoxin |
| Catalog No. | IEC-HMM-0210 |
| Description | Alta DiagnoTech GMP-grade recombinant enterokinase is an engineered, high-specificity DDDDK-cleaving protease for peptide-manufacturing workflows. |
| Intended Use | For removal of affinity tags from N-terminal or Met-N-terminal fusion proteins and preparation of peptide products such as GLP-1 analogues. |
| Principle / Technology | An engineered enterokinase light-chain fragment specifically cleaves after lysine in DDDDK sequences when the next residue is not proline. |
| Reaction Conditions / Protocol | For 0.1-1 mg/mL fusion protein and 0.1-1 mg total protein, use 0.1-1 U enzyme and incubate at 25°C for 12-16 hours or overnight. |
| Storage Conditions | Store at -25°C to -15°C. |
| Package Specifications | 2 kU, 20 kU, 200 kU, 2 MU and 20 MU |
| Product Form | Liquid enzyme |
| Quality Control | Endotoxin ≤10 EU/kU; host-cell protein ≤0.01%; host-cell nucleic acid ≤2 ng/kU. |
| Purity | ≥95% by SDS-PAGE; ≥90% by HPLC |
| Activity / Unit Definition | One unit cleaves 95% of 0.5 mg fusion protein in 25 mM Tris-HCl, pH 8.0, within 12-16 hours at 25°C. |
| Source / Origin | Recombinant Escherichia coli expression; engineered light-chain fragment with a 6×His tag |
| Shipping Conditions | Ship on dry ice. |
| Recommended Buffer System | 25 mM Tris-HCl, pH 8.0 |
| Application Notes / Precautions | Cleavage may be reduced above 200 mM imidazole, above 200 mM NaCl or above 5% glycerol. The 6×His-tagged enzyme may be removed by nickel affinity or DEAE ion exchange. |
| Appearance | Clear, colorless to pale-yellow liquid |
| Alias | GMP-Grade Recombinant Enterokinase |
| Product Type | GMP-grade recombinant enterokinase |
For research use only, not for clinical use.
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