Collection: Recombinant RAS & KRAS Mutant Proteins | Amid Biosciences
RAS proteins are crucial in cancer research due to their role in cellular signal transduction. As a family of small GTPases, RAS proteins—including HRAS, KRAS, and NRAS—are among the most common oncogenes in human cancers. KRAS mutations, notably G12C, G12D, G12V, G13D, and Q61H, are highly prevalent in tumors, making them vital targets for oncology drug discovery, including the development of small-molecule inhibitors and molecular glues.
Amid Biosciences supports this critical research area by offering an extensive range of high-purity recombinant biotinylated and non-biotinylated RAS proteins, including wild-type and mutant KRAS, HRAS, and NRAS GTPases. Our proteins are engineered as essential tools for binding assays, structural biology, and high-throughput screening (HTS). Additionally, we provide custom services for loading RAS proteins with specific nucleotides (GTP/GDP) or their analogs to fit your precise experimental needs.
To complement your RAS signal transduction pathway research, we also provide key regulatory biomolecules, effector domains, and upstream/downstream targets, including:
- Raf1-RBD, PI3Kα-RBD, and RALGDS-RBD
- SOS1 (GEF domain) and Neurofibromin (NF1-GRD)
- SHP2, RALA, RALB, Rheb, MEK1, and MEK2
Validated Application & Citation:
Our biotinylated KRAS mutant proteins and SOS1 have been successfully utilized in high-throughput nucleotide exchange assays to characterize next-generation KRAS inhibitors and degraders.
For examples of these products in validated protocols, see:
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Kidane M, Hoffman RM, Wolfe-Demarco JK, et al. Suite of Biochemical and Cell-Based Assays for the Characterization of Kirsten Rat Sarcoma (KRAS) Inhibitors and Degraders. ACS Pharmacol Transl Sci. 2024;7(12):3921-3934. doi:10.1021/acsptsci.4c00450
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Morstein J, Bowcut V, Fernando M, et al. Targeting Ras-, Rho-, and Rab-family GTPases via a conserved cryptic pocket. Cell. 2024;187(22):6379-6392.e17. doi:10.1016/j.cell.2024.08.017
- Kage M.; Hayashi R.; Matsuo A.; et al. Structure-activity relationships of middle-size cyclic peptides, KRAS inhibitors derived from an mRNA display. Bioorg Med Chem. 2024;110:117830. doi:10.1016/j.bmc.2024.117830
For Research Use Only (RUO). These products are intended solely for laboratory research and development and are not for diagnostic or therapeutic use in humans or animals.
Table 1. KRAS and KRAS-related proteins by mutation type
| Protein | Available Formats | Tag(s) | Catalog # |
|---|---|---|---|
| Wild-Type KRAS | |||
| WT KRAS (1-185), biotinylated | 0.05 mg, 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS-301-B |
| WT KRAS (1-166), biotinylated | 0.1 mg | C-terminal 6XHis, AviTag | KRAS-B-C-301 |
| WT KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS-301 |
| WT KRAS (1-185), biotinylated, no His-tag | 0.1 mg | N-terminal AviTag | KRAS-B-302 |
| G12C Mutation | |||
| G12C KRAS (1-185), biotinylated | 0.05 mg, 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS12C-B-301 |
| G12C, Y96D KRAS (1-185), biotinylated | 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS12C-96D-B-301 |
| G12C KRAS (1-166), biotinylated | 0.1 mg | C-terminal 6XHis, AviTag | KRAS12C-B-C-301 |
| G12C KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS12C-301 |
| G12D Mutation | |||
| G12D KRAS (1-185), biotinylated | 0.05 mg, 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS12D-B-301 |
| G12D KRAS (1-166), biotinylated | 0.1 mg | C-terminal 6XHis, AviTag | KRAS12D-B-C-301 |
| G12D KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS12D-301 |
| G12R Mutation | |||
| G12R KRAS (1-185), biotinylated | 0.1 mg | N-terminal 8XHis, AviTag | KRAS12R-B-301 |
| G12R KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS12R-301 |
| G12V Mutation | |||
| G12V KRAS (1-185), biotinylated | 0.05 mg, 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS12V-B-301 |
| G12V KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS12V-301 |
| G12V KRAS (1-166), biotinylated | 0.1 mg | C-terminal 6XHis, AviTag | KRAS12V-B-C-301 |
| G12V KRAS (1-185), biotinylated, no His-tag | 0.1 mg | N-terminal AviTag | KRAS12V-B-302 |
| G13D Mutation | |||
| G13D KRAS (1-185), biotinylated | 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS13D-B-301 |
| G13D KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS13D-301 |
| Q61H Mutation | |||
| Q61H KRAS (1-185), biotinylated | 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS61H-B-301 |
| Q61H KRAS (1-185) | 0.1 mg, 1.0 mg | N-terminal 8XHis, AviTag | KRAS61H-301 |
| Y96D Mutation | |||
| Y96D KRAS (1-185), biotinylated | 0.1 mg | N-terminal 8XHis, AviTag | KRAS96D-B-301 |
| Y96D KRAS (1-185) | 0.1 mg | N-terminal 8XHis, AviTag | KRAS96D-301 |
| KRAS-Related Proteins | |||
| RALA, biotinylated | 0.1 mg | N-terminal 8XHis, AviTag | RALA-B-301 |
| RALB, biotinylated | 0.1 mg | N-terminal 8XHis, AviTag | RALB-B-301 |
| RHEB (1-184), biotinylated | 0.1 mg | N-terminal 8XHis, AviTag | RHEB-B-301 |
| MEK1 | 0.05 mg | N-terminal 8XHis, AviTag | MEK1-B-301 |
| MEK2 | 0.05 mg | N-terminal 8XHis, AviTag | MEK2-B-301 |
| KRAS Regulation Proteins | |||
| RAF1-RBD | 0.1 mg, 1.0 mg | N-terminal 6XHis, GST | RAF1-301 |
| RAF1-RBD, biotinylated | 0.1 mg | N-terminal 6XHis, AviTag | RAF1-B-301 |
| Neurofibromin (NF1) | 0.05 mg | N-terminal 6XHis | NF1-301 |
| SHP2, biotinylated | 0.1 mg, 1.0 mg | N-terminal 6XHis | SHP2-B-301 |
| SOS1 | 0.1 mg, 1.0 mg | C-terminal 6XHis | SOS1-301 |
| PI3Kα-RBD, biotinylated | 0.05 mg | N-terminal 6XHis, AviTag | PI3KA-B-301 |
| PI3Kα-RBD, GST Tag | 0.05 mg | N-terminal 6XHis, GST | PI3KA-G-301 |
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KRAS G12V Protein, Human, Recombinant, Biotinylated | Amid Biosciences
Regular price From $ 500.00 USDRegular priceUnit price / perSale price From $ 500.00 USD -
KRAS G13D Protein, Human, Recombinant, AviTag
Regular price $ 500.00 USDRegular priceUnit price / perSale price $ 500.00 USD -
KRAS G13D Protein, Human, Recombinant, Biotinylated
Regular price From $ 800.00 USDRegular priceUnit price / perSale price From $ 800.00 USD -
KRAS Q61H Protein, Human, Recombinant Biotinylated | Amid Biosciences
Regular price From $ 800.00 USDRegular priceUnit price / perSale price From $ 800.00 USD -
KRAS Q61H Protein, Human, Recombinant, AviTag
Regular price $ 500.00 USDRegular priceUnit price / perSale price $ 500.00 USD -
KRAS Y96D Protein, Human, Recombinant, AviTag
Regular price $ 500.00 USDRegular priceUnit price / perSale price $ 500.00 USD -
KRAS Y96D Protein, Human, Recombinant, Biotinylated
Regular price $ 800.00 USDRegular priceUnit price / perSale price $ 800.00 USD -
MEK1 Protein, Human, Recombinant, Biotinylated | Amid Biosciences
Regular price $ 900.00 USDRegular priceUnit price / perSale price $ 900.00 USD -
MEK2 Protein, Human, Recombinant, Biotinylated
Regular price $ 900.00 USDRegular priceUnit price / perSale price $ 900.00 USD -
Neurofibromin (NF1), Human, Recombinant | Amid Biosciences
Regular price $ 900.00 USDRegular priceUnit price / perSale price $ 900.00 USD -
NRAS G12D Protein, Recombinant, Human, Biotinylated | Amid Biosciences
Regular price $ 800.00 USDRegular priceUnit price / perSale price $ 800.00 USD -
NRAS Protein, Human, Biotinylated
Regular price $ 800.00 USDRegular priceUnit price / perSale price $ 800.00 USD -
PI3Kα-RBD Protein, Human, Biotinylated
Regular price $ 900.00 USDRegular priceUnit price / perSale price $ 900.00 USD -
PI3Kα-RBD Protein, Human, GST-tag
Regular price $ 500.00 USDRegular priceUnit price / perSale price $ 500.00 USD -
Raf1 RBD Protein, Human, Recombinant
Regular price From $ 280.00 USDRegular priceUnit price / perSale price From $ 280.00 USD -
Raf1 RBD Protein, Human, Recombinant, Biotinylated
Regular price $ 800.00 USDRegular priceUnit price / perSale price $ 800.00 USD
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