Figure 5

Increased production of intracellular reactive oxygen species (ROS) in xeroderma pigmentosum group C (XP-C) fibroblasts. Control (wild-type, WT) and XP-C fibroblasts were stained with CM-H2DCFDA and analysed by flow cytometry. ROS levels are expressed as relative fluorescence units. Data are represented as mean±m.d. of two independent experiments (see also Supplementary data 1 ).