Genomic instability and endoreduplication triggered by RAD17 deletion

Xin Wang, Lee Zou, Huyong Zheng, Qingyi Wei, Stephen J. Elledge, Lei Li

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)965-970
Number of pages6
JournalGenes and Development
Volume17
Issue number8
DOIs
StatePublished - Apr 15 2003

Keywords

  • Checkpoint
  • DNA damage
  • Endoreduplication
  • RAD17

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology

Fingerprint

Dive into the research topics of 'Genomic instability and endoreduplication triggered by RAD17 deletion'. Together they form a unique fingerprint.

Cite this