Bar graph showing GFP-HRASG12V content in the inner leaflet of the plasma membrane is quantified as the number of gold particles per 1μm2 region from electron micrographs. Values are normalized to DMSO average and represent mean±SEM, n ≥ 15 for each condition. Statistical test employed was Student's t-test with Bonferroni post hoc correction to account for multiple pairwise comparisons. 