Genomic instability and endoreduplication triggered by RAD17 deletion.

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.

journal_name

Genes Dev

journal_title

Genes & development

authors

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

doi

10.1101/gad.1065103

subject

Has Abstract

pub_date

2003-04-15 00:00:00

pages

965-70

issue

8

eissn

0890-9369

issn

1549-5477

pii

U-10651Rsp

journal_volume

17

pub_type

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