Human KRAS, also known as C-K-RAS, CFC2, and K-RAS2A, GenBank Accession No. NM_033360, a.a. 2-186 with G12C mutation and N-terminal His-tag, expressed in an E. coli expression system. MW=23 kDa. KRAS (G12C) His-Tag (Biohippo #100413), is loaded with GppNHp (non-hydrolyzable GTP analog). Unbound GppNHp was removed by spin column. Ready for use in KRAS-RAF binding studies or inhibitor assays.
Immunogen Region
2-186
Tag
N-terminal His-tag
Formulation
20 mM HEPES, pH 7.4, 150 mM NaCl, and 1 mM DTT.
Species
Human
Application
Useful for nucleotide exchange assay, KRAS(G12C) inhibitors screening, and selectivity profiling.
Notes
GppNHp loaded KRAS(G12C) was tested for binding to the RBD of Raf1. GppNHp loaded KRAS(G12C) was compared with GDP-loaded KRAS(G12C) (Biohippo #100640) for RBD-RAF1 (Biohippo #100519) binding by Bio-layer Interferometry (GATOR, Probe Life) and AlphaScreening (PerkinElmer).
Avoid freeze/thaw cycles.
GenBank
NM_033360
Mw(kda)
23 kDa
Synonyms
C-K-RAS, CFC2, K-RAS2A
Uniprot
P01116
Shipping Temperature
-80°C (dry ice)
Format
Aqueous buffer solution
Storage
At least 6 months at -70°C.
Reference
1. Ostrem, J. M., et al., Nature. 2013;503:548-551. 2. Patricelli, M. P., et al., Cancer Discovery. 2016;6:316-329.