Gene dosage screens in yeast reveal core signalling pathways controlling heat adaptation
Gene dosage screens in yeast reveal core signalling pathways controlling heat adaptation
复制标题
酵母中的基因剂量筛选揭示了控制热适应的核心信号通路
DOI:
10.1101/2020.08.26.267674
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
L.M. Steinmetz
中科院分区:
文献类型:
--
作者:
A. Johansson;J.D. Smith;L. Parts;L.M. Steinmetz
Heat stress causes proteins to unfold and lose their function, jeopardizing essential cellular processes. To protect against heat and proteotoxic stress, cells mount a dedicated stress-protective programme, the so-called heat shock response (HSR). Our understanding of the mechanisms that regulate the HSR and their contributions to heat resistance and growth is incomplete. Here we employ CRISPRi/a to down- or upregulate protein kinases and transcription factors inS. cerevisiae. We measure gene functions by quantifying perturbation effects on HSR activity, thermotolerance, and cellular fitness at 23, 30 and 38°C. The integration of these phenotypes allowed us to identify core signalling pathways of heat adaptation and reveal novel functions for the high osmolarity glycerol, unfolded protein response and protein kinase A pathways in adjusting both thermotolerance and chaperone expression. We further provide evidence for unknown cross-talk of the HSR with the cell cycle-dependent kinase Cdc28, the primary regulator of cell cycle progression. Finally, we show that CRISPRi efficiency is temperature-dependent and that different phenotypes vary in their sensitivity to knock-down. In summary, our study quantifies regulatory gene functions in different aspects of heat adaptation and advances our understanding of how eukaryotic cells counteract proteotoxic and other heat-caused damage.
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影响因子:
5.9
作者:
Momen-Roknabadi A;Oikonomou P;Zegans M;Tavazoie S
通讯作者:
Tavazoie S
影响因子:
16
作者:
Solís EJ;Pandey JP;Zheng X;Jin DX;Gupta PB;Airoldi EM;Pincus D;Denic V
通讯作者:
Denic V
DOI:
10.1007/978-3-030-24285-5_7
发表时间:
2019
期刊:
Heat Shock Proteins in Neuroscience
影响因子:
--
作者:
P. Maiti;J. Manna
通讯作者:
P. Maiti;J. Manna
影响因子:
3.6
作者:
Ruiz-Roig, Claudia;Vieitez, Cristina;de Nadal, Eulalia
通讯作者:
de Nadal, Eulalia
DOI:
10.1016/j.bbaexp.2005.09.005
发表时间:
2005-11-10
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
影响因子:
--
作者:
Carrozza, MJ;Florens, L;Workman, JL
通讯作者:
Workman, JL