Phosphorylation of nicastrin by SGK1 leads to its degradation through lysosomal and proteasomal pathways.
Phosphorylation of nicastrin by SGK1 leads to its degradation through lysosomal and proteasomal pathways.
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DOI:
10.1371/journal.pone.0037111
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Park HS
中科院分区:
文献类型:
--
作者:
Mo JS;Yoon JH;Hong JA;Kim MY;Ann EJ;Ahn JS;Kim SM;Baek HJ;Lang F;Choi EJ;Park HS
The gamma-secretase complex is involved in the intramembranous proteolysis of a variety of substrates, including the amyloid precursor protein and the Notch receptor. Nicastrin (NCT) is an essential component of the gamma-secretase complex and functions as a receptor for gamma-secretase substrates. In this study, we determined that serum- and glucocorticoid-induced protein kinase 1 (SGK1) markedly reduced the protein stability of NCT. The SGK1 kinase activity was decisive for NCT degradation and endogenous SGK1 inhibited gamma-secretase activity. SGK1 downregulates NCT protein levels via proteasomal and lysosomal pathways. Furthermore, SGK1 directly bound to and phosphorylated NCT on Ser437, thereby promoting protein degradation. Collectively, our findings indicate that SGK1 is a gamma-secretase regulator presumably effective through phosphorylation and degradation of NCT.
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影响因子:
5.4
作者:
Bogusz, Agata M.;Brickley, Deanna R.;Conzen, Suzanne D.
通讯作者:
Conzen, Suzanne D.
DOI:
10.1073/pnas.0604816103
发表时间:
2006-07-25
影响因子:
11.1
作者:
Arteaga, Maria Francisca;Wang, Lin;Canessa, Cecilia M.
通讯作者:
Canessa, Cecilia M.
DOI:
10.1073/pnas.022523499
发表时间:
2002-01-22
影响因子:
11.1
作者:
Goutte, C;Tsunozaki, M;Priess, JR
通讯作者:
Priess, JR
影响因子:
3.3
作者:
Arteaga, Maria Francisca;de la Rosa, Diego Alvarez;Canessa, Cecilia M.
通讯作者:
Canessa, Cecilia M.
DOI:
10.1083/jcb.200201123
发表时间:
2002-08-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kaether C;Lammich S;Edbauer D;Ertl M;Rietdorf J;Capell A;Steiner H;Haass C
通讯作者:
Haass C