The phosphorylation of the Smad2/3 linker region by nemo-like kinase regulates TGF-β signaling.
The phosphorylation of the Smad2/3 linker region by nemo-like kinase regulates TGF-β signaling.
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DOI:
10.1016/j.jbc.2021.100512
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发表时间:
2021-01
期刊:
影响因子:
--
通讯作者:
Song W
中科院分区:
文献类型:
--
作者:
Liang J;Zhou Y;Zhang N;Wang D;Cheng X;Li K;Huang R;Lu Y;Wang H;Han D;Wu W;Han M;Miao S;Wang L;Zhao H;Song W
Smad2 and Smad3 (Smad2/3) are structurally similar proteins that primarily mediate the transforming growth factor-β (TGF-β) signaling responsible for driving cell proliferation, differentiation, and migration. The dynamics of the Smad2/3 phosphorylation provide the key mechanism for regulating the TGF-β signaling pathway, but the details surrounding this phosphorylation remain unclear. Here, using in vitro kinase assay coupled with mass spectrometry, we identified for the first time that nemo-like kinase (NLK) regulates TGF-β signaling via modulation of Smad2/3 phosphorylation in the linker region. TGF-β-mediated transcriptional and cellular responses are suppressed by NLK overexpression, whereas NLK depletion exerts opposite effects. Specifically, we discovered that NLK associates with Smad3 and phosphorylates the designated serine residues located in the linker region of Smad2 and Smad3, which inhibits phosphorylation at the C terminus, thereby decreasing the duration of TGF-β signaling. Overall, this work demonstrates that phosphorylation on the linker region of Smad2/3 by NLK counteracts the canonical phosphorylation in response to TGF-β signals, thus providing new insight into the mechanisms governing TGF-β signaling transduction.
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影响因子:
7.5
作者:
Han, Ye;Kuang, Yuting;Zhao, Hong
通讯作者:
Zhao, Hong
影响因子:
10.5
作者:
Aragon, Eric;Goerner, Nina;Macias, Maria J.
通讯作者:
Macias, Maria J.
影响因子:
64.5
作者:
Alarcón C;Zaromytidou AI;Xi Q;Gao S;Yu J;Fujisawa S;Barlas A;Miller AN;Manova-Todorova K;Macias MJ;Sapkota G;Pan D;Massagué J
通讯作者:
Massagué J
影响因子:
16.6
作者:
通讯作者:
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DOI:
10.1038/nrm3434
发表时间:
2012-10
期刊:
Nature reviews. Molecular cell biology
影响因子:
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作者:
通讯作者:
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