Frédéric Catez

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We report that loss of HMGN1, a nucleosome-binding protein that alters the compaction of the chromatin fiber, increases the cellular sensitivity to ionizing radiation and the tumor burden of mice. The mortality and tumor burden of ionizing radiation-treated Hmgn1-/- mice is higher than that of their Hmgn1+/+ littermates. Hmgn1-/- fibroblasts have an altered(More)
Efficient and correct responses to double stranded breaks (DSB) in chromosomal DNA are critical for maintaining genomic stability and preventing chromosomal alterations leading to cancer1. The generation of DSB is associated with structural changes in chromatin and the activation of the protein kinase ataxia-telangiectasia mutated (ATM), a key regulator of(More)
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