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GTPase Kras, K-Ras 2, Ki-Ras, c-K-ras, c-Ki-ras, KRAS2, RASK2, C-K-RAS, CFC2, K-RAS2A, K-RAS2B, K-RAS4A, K-RAS4B, KI-RAS, KRAS1, KRAS2, NS, NS3, RASK2, KRAS
Human KRAS Protein, His Tag (KRS-H51H6) is expressed from E. coli cells. It contains AA Thr 2 - Cys 185 (Accession # P01116-2).
This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 23.0 kDa. The protein migrates as 25-27 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
Less than 0.1 EU per μg by the LAL method / rFC method.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-HPLC.
Lyophilized from 0.22 μm filtered solution in 20 mM Tris,500 mM NaCl, pH7.5 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
This product is shipped at ambient temperature.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.