The Cell lysates (40ug) were resolved by SDS-PAGE, transferred to PVDF membrane and probed with anti-human KRAS antibody (1:500). Proteins were visualized using a goat anti-mouse secondary antibody conjugated to HRP and an ECL detection system. Lane 1. : HeLa cell lysate Lane 2. : HepG2 cell lysate Lane 3. : Ramos cell lysate Lane 4. : A549 cell lysate Lane 5. : Balb/3T3 cell lysate

Flow cytometry analysis of KRAS in A549 cell line, staining at 2-5ug for 1x106cells (red line). The secondary antibody used goat anti-mouse IgG Alexa fluor 488 conjugate. Isotype control antibody was mouse IgG (black line).

ICC/IF analysis of KRAS in HeLa cells line, stained with DAPI (Blue) for nucleus staining and monoclonal anti-human KRAS antibody (1:100) with goat anti-mouse IgG-Alexa fluor 488 conjugate (Green).