Figure 4From: Image-based quantitative determination of DNA damage signal reveals a threshold for G2 checkpoint activation in response to ionizing radiationRepresentative SOID measurements in G2 cells. The SOID values were examined in cells 2 hours after exposure to 0.4 Gy of X-rays. The SOID was measured as described in Methods. Left panel: the SOID values in each nucleus. Right panel: white arrows indicate two nuclei with similar foci numbers but different the SOID values.Back to article page