Fig. 7
The FAN1 PIP-box motif is not required for FAN1 foci formation upon exposure to MMC. a Total cell extracts and chromatin-enriched fractions of U2OS cells expressing the indicated eGFP-FAN1 variants, treated or mock-treated with MMC (150 ng/ml, 24 h), were analysed by immunoblotting using the indicated antibodies. A representative blot of three independent experiments is shown. b Cells as in a were immunostained with anti-FANCD2 antibody. Representative images are shown. Scale bar: 25 μm. c, d Quantification of eGFP-FAN1 foci count (c) and the sum of their intensities (d) was obtained from QIBC analysis of b. Median levels are indicated by black bars. Statistical analyses were carried out using unpaired, two-tailed t-tests. P values expressed as ***(P < 0.01) were considered significant, n = 3. e Total cell extracts derived from cells as in a, treated or mock-treated with MMC (150 ng/ml, 24 h), were incubated with anti-eGFP affinity resin. Inputs and immunoprecipitates were analysed by immunoblotting with the indicated antibodies. A representative blot of two independent experiments is shown
