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. Author manuscript; available in PMC: 2012 Jan 2.
Published in final edited form as: DNA Repair (Amst). 2010 Oct 13;10(1):5–15. doi: 10.1016/j.dnarep.2010.09.004

Figure 1.

Figure 1

Immunofluorescence of phosphorylated histone H2AX and ATM after uniform ionizing radiation (IR) compared to uniform UV in normal and XP-B (XP183MA) cells. Normal (0.8 μm beads – red arrows) and XP-B cells (2.0 μm beads- yellow arrows) on the same slide were exposed to 5 Gy IR (top row) or 10 J/m2 UV (bottom row) and then cultured for 3 h or 6 h before fixation. Immunofluorescent double labeling revealed that IR and UV irradiation led to phosphorylation of the DSB-related proteins H2AX and ATM in the normal and XP-B cells.