منابع مشابه
Checkpoint Adaptation Molecular Mechanisms Uncovered
Adaptation to the DNA damage checkpoint is a phenomenon long thought to be confined to the unicellular world. A new report in this issue of Cell by suggests the presence of a checkpoint adaptation pathway in Xenopus egg extracts that displays interesting molecular parallels to adaptation in yeast.
متن کاملBub1-Mediated Adaptation of the Spindle Checkpoint
During cell division, the spindle checkpoint ensures accurate chromosome segregation by monitoring the kinetochore-microtubule interaction and delaying the onset of anaphase until each pair of sister chromosomes is properly attached to microtubules. The spindle checkpoint is deactivated as chromosomes start moving toward the spindles in anaphase, but the mechanisms by which this deactivation an...
متن کاملCDC5 Inhibits the Hyperphosphorylation of the Checkpoint Kinase Rad53, Leading to Checkpoint Adaptation
The Saccharomyces cerevisiae polo-like kinase Cdc5 promotes adaptation to the DNA damage checkpoint, in addition to its numerous roles in mitotic progression. The process of adaptation occurs when cells are presented with persistent or irreparable DNA damage and escape the cell-cycle arrest imposed by the DNA damage checkpoint. However, the precise mechanism of adaptation remains unknown. We re...
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In budding yeast, telomerase and the Cdc13p protein are two key players acting to ensure telomere stability. In the absence of telomerase, cells eventually enter a growth arrest which only few can overcome via a conserved process; such cells are called survivors. Survivors rely on homologous recombination-dependent mechanisms for telomeric repeat addition. Previously, we showed that such surviv...
متن کاملDecoding the links between mitosis, cancer, and chemotherapy: The mitotic checkpoint, adaptation, and cell death.
Disrupted passage through mitosis often leads to chromosome missegregation and the production of aneuploid progeny. Aneuploidy has long been recognized as a frequent characteristic of cancer cells and a possible cause of tumorigenesis. Drugs that target mitotic spindle assembly are frequently used to treat various types of human tumors. These lead to chronic mitotic arrest from sustained activa...
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ژورنال
عنوان ژورنال: Cell
سال: 2004
ISSN: 0092-8674
DOI: 10.1016/j.cell.2004.05.005