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The RAD9 Gene Controls the Cell Cycle Response to DNA Damage in Saccharomyces cerevisiae

Weinert, Ted A., Hartwell, Leland H.·1988·Science

Abstract

Cell division is arrested in many organisms in response to DNA damage. Examinations of the genetic basis for this response in the yeast Saccharomyces cerevisiae indicate that the RAD9 gene product is essential for arrest of cell division induced by DNA damage. Wild-type haploid cells irradiated with x-rays either arrest or delay cell division in the G2 phase of the cell cycle. Irradiated G1 and M phase haploid cells arrest irreversibly in G2 and die, whereas irradiated G2 phase haploid cells delay in G2 for a time proportional to the extent of damage before resuming cell division. In contrast, irradiated rad9 cells in any phase of the cycle do not delay cell division in G2, but continue to divide for several generations and die. However, efficient DNA repair can occur in irradiated rad9 cells if irradiated cells are blocked for several hours in G2 by treatment with a microtubule poison. The RAD9 -dependent response detects potentially lethal DNA damage and causes arrest of cells in G2 until such damage is repaired.

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Metadata

Authors
Weinert, T. A., & Hartwell, L. H.
Venue
Science
Published
1988-07-15
Volume
241
Issue
4863
Pages
317-322
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1982061874
Cited by
1,156
References
0
FWCI
11.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The RAD9 Gene Controls the Cell Cycle Response to DNA Damage in Saccharomyces cerevisiae. https://app.cochat.ai/papers/10.1126/science.3291120
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Weinert, T. A., & Hartwell, L. H. (1988). The RAD9 Gene Controls the Cell Cycle Response to DNA Damage in Saccharomyces cerevisiae. Science. https://doi.org/10.1126/science.3291120

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