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"Genomic instability and endoreduplication triggered by RAD17 deletion."

Wang X, Zou L, Zheng H, Wei Q, Elledge SJ, Li L



Published April 15, 2003 in Genes Dev volume 17 .

Pubmed ID: 12672690

Abstract:
Cell cycle checkpoints are critical for genomic stability. Rad17, a component of the checkpoint clamp loader complex (Rad17/Rfc2-5), is required for the response to DNA damage and replication stress. To explore the role of Rad17 in the maintenance of genomic integrity, we established somatic conditional alleles of RAD17 in human cells. We find that RAD17 is not only important for the Atr-mediated checkpoint but is also essential for cell viability. Cells lacking RAD17 exhibited acute chromosomal aberrations and underwent endoreduplication at a high rate. Therefore, RAD17 links the checkpoint to ploidy control and is essential for the maintenance of chromosomal stability.


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Last modification of this entry: Oct. 6, 2010

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