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Synonyms: RASK2, RALD, NS3, NS, K-RAS4B, K-RAS4A, K-RAS2B, K-RAS2A, KRAS2, KRAS1, K-RAS, Kirsten rat sarcoma viral oncogene homolog, KI-RAS, C-K-RAS, CFC2

| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $52 | - | In Stock | |
| 10 μg | $81 | - | In Stock | |
| 20 μg | $129 | 7-10 days | 7-10 days | |
| 50 μg | $255 | - | In Stock | |
| 100 μg | $450 | 7-10 days | 7-10 days | |
| 200 μg | $793 | 7-10 days | 7-10 days | |
| 500 μg | $1,670 | 7-10 days | 7-10 days |
| Bioactivity | The specific activity of KRAS was measured by GTPase-Glo assay. |
| Description | KRAS Protein, Human, Recombinant (G12D, His) is expressed in E. coli expression system with His tag. The predicted molecular weight is 22 kDa and the accession number is P01116-2. |
| Species | Human |
| Expression System | E. coli |
| Tag | N-His |
| Accession Number | P01116-2 |
| Construction | A DNA sequence encoding the human KRAS (P01116-2) (Thr2-Cys185, with natural variant Gly 12 Asp) was expressed with a polyhistidine tag at the N-terminus. Predicted N terminal: Met |
| Protein Purity | > 95 % as determined by SDS-PAGE. ![]() |
| Endotoxin | < 1.0 EU/μg of the protein as determined by the LAL method. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing 25 mM Tris, 100 mM glycine, 10% glycerol, pH 7.5. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| Reconstitution | Reconstituted with sterile deionized water to 0.15 mg/mL. Reconstitution conditions may vary depending on the lot. |
| Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| Shipping | In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice. |
| Synonyms | RASK2, RALD, NS3, NS, K-RAS4B, K-RAS4A, K-RAS2B, K-RAS2A, KRAS2, KRAS1, K-RAS, Kirsten rat sarcoma viral oncogene homolog, KI-RAS, C-K-RAS, CFC2 |
| Research Background |
| Molecular Weight | 22 kDa (predicted) |
| Storage | Lyophilized powder: -20~-80°C for 1 year | Solution: -80°C for 6 months |
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