Abstract
Although the influence of p53 deficiency on somatic genetic stability is well established, its effect in the germline is poorly understood. Mutation rates at two expanded simple tandem repeat (ESTR) loci were studied in the germline of nonexposed and irradiated p53-deficient mice. Spontaneous mutation rates in the homozygous and heterozygous p53-deficient males did not significantly differ from that in the isogenic wild-type mice. Acute exposure to 1 Gy of X rays resulted in a similar increase in mutation rates across males with different p53 genotypes. ESTR mutation spectra did not significantly differ across males with different p53 genotypes. Taken together, these results suggest that p53-deficiency does not affect spontaneous and radiation-induced mutation in the mouse germline.
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This work was supported by grants from The Wellcome Trust, the European Commission and the Department of Energy (YE Dubrova).
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Burr, KA., Smith, A. & Dubrova, Y. p53 deficiency does not affect mutation rate in the mouse germline. Oncogene 24, 4315–4318 (2005). https://doi.org/10.1038/sj.onc.1208604
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DOI: https://doi.org/10.1038/sj.onc.1208604
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