Total dolichol levels (C) and distribution of dolichol‐17, 18, 19, and 20 (D) measured from HeLa cells with stable knockdown of NgBR by shRNA (NgBR KD), control (NgBR NS), and pcDNA‐NgBR‐transfected NgBR KD cells showing conservation of the role of NgBR. Analysis of dolichol species by liquid chromatography and mass spectroscopy was performed as described in
4.