Recombinant Human NRAS Protein, His-tagged
Recombinant mature form of human NRAS (P01111) (Met1-Cys186) was expressed with a polyhistidine tag at the N-terminus.
Predicted N Terminal:
Lyophilized from sterile 20mM Tris, 0.1M NaCl, 10% Glycerol, pH 7.5, 5%~8% trehalose and mannitol.
The recombinant human NRAS consists of 202 amino acids and predicts a molecular mass of 23 KDa. It migrates as an approximately 24 KDa band in SDS-PAGE under reducing conditions.
< 1.0 EU per μg of the protein as determined by the LAL method.
>95 % as determined by SDS-PAGE.
Samples are stable for up to twelve months from date of receipt at -70ºC.
Store it under sterile conditions at -20ºC~-70ºC. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.25 ug/ul. Centrifuge the vial at 4ºC before opening to recover the entire contents.