Reference - PMID:20375067 - Fission yeast Rad26ATRIP delays spindle-pole-body separation following interphase microtubule damage.
Reference summary
- PubMed ID
- PMID:20375067
- Title
- Fission yeast Rad26ATRIP delays spindle-pole-body separation following interphase microtubule damage.
- Authors
- Herring M, Davenport N, Stephan K, Campbell S, White R, Kark J, Wolkow TD
- Citation
- J Cell Sci 2010 May 01;123(Pt 9):1537-45
- Publication year
- 2010
- Abstract
- The conserved fission yeast protein Rad26(ATRIP) preserves genomic stability by occupying central positions within DNA-structure checkpoint pathways. It is also required for proper cellular morphology, chromosome stability and following treatment with microtubule poisons. Here, we report that mutation of a putative nuclear export sequence in Rad26(ATRIP) disrupted its cytoplasmic localization in untreated cells and conferred abnormal cellular morphology, minichromosome instability and sensitivity to microtubule poisons without affecting DNA-structure checkpoint signaling. This mutation also disrupted a delay to spindle-pole-body separation that occurred following microtubule damage in G(2). Together, these results demonstrate that Rad26(ATRIP) participates in two genetically defined checkpoint pathways--one that responds to genomic damage and the other to microtubule damage. This response to microtubule damage delays spindle-pole-body separation and, in doing so, might preserve both cellular morphology and chromosome stability.
