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 GDP. Unbound GDP was removed by spin column. Ready for use in the GDP/GTP exchange assay or as a negative control for KRAS-RAF interaction.
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
GDP loaded KRAS(G12C) was tested for binding to the RBD of Raf1. GDP-loaded KRAS(G12C) was compared with GppNHp-loaded KRAS(G12C) (Biohippo #100641) 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.