Yorkie Growth-Promoting Activity Is Limited by Atg1-Mediated Phosphorylation.
Yorkie Growth-Promoting Activity Is Limited by Atg1-Mediated Phosphorylation.
复制标题
约克夏的生长促进活性受到 Atg1 介导的磷酸化的限制。
DOI:
10.1016/j.devcel.2020.01.011
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发表时间:
2020
影响因子:
11.8
通讯作者:
Krämer,Helmut
中科院分区:
文献类型:
--
作者:
Tyra,LaurenK;Nandi,Nilay;Tracy,Charles;Krämer,Helmut
The expression of multiple growth-promoting genes is coordinated by the transcriptional co-activator Yorkie with its major regulatory input provided by the Hippo-Warts kinase cascade. Here, we identify Atg1/ULK1-mediated phosphorylation of Yorkie as an additional inhibitory input independent of the Hippo-Warts pathway. Two serine residues in Yorkie, S74 and S97, are Atg1/ULK1 consensus target sites and are phosphorylated by ULK1in vitro, thereby preventing its binding to Scalloped.In vivo, gain of function of Atg1, or its activator Acinus, caused elevated Yorkie phosphorylation and inhibited Yorkie's growth-promoting activity. Loss of function of Atg1 or Acinus raised expression of Yorkie target genes and increased tissue size. Unlike Atg1's role in autophagy, Atg1-mediated phosphorylation of Yorkie does not require Atg13. Atg1 is activated by starvation and other cellular stressors and therefore can impose temporary stress-induced constraints on the growth-promoting gene networks under the control of Hippo-Yorkie signaling.
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影响因子:
29
作者:
Zhao M;Klionsky DJ
通讯作者:
Klionsky DJ
影响因子:
21.3
作者:
通讯作者:
--
影响因子:
9.8
作者:
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通讯作者:
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影响因子:
7.5
作者:
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通讯作者:
Hurley JH
影响因子:
3.3
作者:
Jung, Chang Hwa;Jun, Chang Bong;Kim, Do-Hyung
通讯作者:
Kim, Do-Hyung