Systematic analysis of the effects of the DNA damage response network in telomere defective budding yeast
Systematic analysis of the effects of the DNA damage response network in telomere defective budding yeast
复制标题
端粒缺陷芽殖酵母 DNA 损伤反应网络影响的系统分析
DOI:
10.1101/101253
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Holstein E
中科院分区:
文献类型:
--
作者:
Holstein E
Functional telomeres are critically important to eukaryotic genetic stability. Budding yeast is a powerful model organism for genetic analysis and yeast telomeres are maintained by very similar mechanisms to human telomeres. Scores of proteins and pathways are known to affect telomere function. Here, we report a series of related genome-wide genetic interaction screens performed on budding yeast cells with acute or chronic telomere defects. We examined genetic interactions in cells defective in Cdc13 and Stn1, affecting two components of CST, a single stranded DNA (ssDNA) binding complex that binds telomeric DNA. We investigated genetic interactions in cells with defects in Rfa3, affecting the major ssDNA binding protein, RPA, which has overlapping functions with CST at telomeres. We also examined genetic interactions in cells lackingEXO1orRAD9,affecting different aspects of the DNA damage response in acdc13-1background. Comparing fitness profiles across the data sets allows us build up a picture of the specific responses to different types of dysfunctional telomeres. Our results show that there is no universal response to telomere defects. To help others engage with the large volumes of data we make the data available via two interactive web-based tools: Profilyzer and DIXY. Among numerous genetic interactions we found thechk1Δ mutation improved fitness ofcdc13-1 exo1Δ cells more than other checkpoint mutations (ddc1Δ,rad9Δ,rad17Δ,rad24Δ), whereas incdc13-1cells the effects of all checkpoint mutations were similar. We find that Chk1 stimulates resection at defective telomeres, revealing a new role for Chk1 in the eukaryotic DNA damage response network.
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影响因子:
16
作者:
Surovtseva, Yulia V.;Churikov, Dmitri;Boltz, Kara A.;Song, Xiangyu;Lamb, Jonathan C.;Warrington, Ross;Leehy, Katherine;Heacock, Michelle;Price, Carolyn M.;Shippen, Dorothy E.
通讯作者:
Shippen, Dorothy E.
影响因子:
3.3
作者:
M. Zubko;Sandrine Guillard;D. Lydall
通讯作者:
D. Lydall
DOI:
10.1007/978-1-61779-998-3_23
发表时间:
2012-01-01
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Holstein, Eva-Maria;Lydall, David
通讯作者:
Lydall, David
影响因子:
56.9
作者:
Sanchez, Y;Bachant, J;Elledge, SJ
通讯作者:
Elledge, SJ
影响因子:
11.4
作者:
Luciano, Pierre;Coulon, Stephane;Geli, Vincent
通讯作者:
Geli, Vincent