ZZ-dependent regulation of p62/SQSTM1 in autophagy.
ZZ-dependent regulation of p62/SQSTM1 in autophagy.
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DOI:
10.1038/s41467-018-06878-8
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发表时间:
2018-10-22
影响因子:
16.6
通讯作者:
Kutateladze TG
中科院分区:
文献类型:
--
作者:
Zhang Y;Mun SR;Linares JF;Ahn J;Towers CG;Ji CH;Fitzwalter BE;Holden MR;Mi W;Shi X;Moscat J;Thorburn A;Diaz-Meco MT;Kwon YT;Kutateladze TG
Autophagic receptor p62 is a critical mediator of cell detoxification, stress response, and metabolic programs and is commonly deregulated in human diseases. The diverse functions of p62 arise from its ability to interact with a large set of ligands, such as arginylated (Nt-R) substrates. Here, we describe the structural mechanism for selective recognition of Nt-R by the ZZ domain of p62 (p62ZZ). We show that binding of p62ZZ to Nt-R substrates stimulates p62 aggregation and macroautophagy and is required for autophagic targeting of p62. p62 is essential for mTORC1 activation in response to arginine, but it is not a direct sensor of free arginine in the mTORC1 pathway. We identified a regulatory linker (RL) region in p62 that binds p62ZZ in vitro and may modulate p62 function. Our findings shed new light on the mechanistic and functional significance of the major cytosolic adaptor protein p62 in two fundamental signaling pathways. The autophagic receptor p62 recognizes arginylated (Nt-R) substrates through its ZZ domain (p62ZZ). Here the authors identify a p62 auto regulatory mechanism and provide structural insights into the selective recognition of Nt-R by p62ZZ and further show that Nt-R binding stimulates p62 oligomerization and macroautophagy.
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影响因子:
64.5
作者:
Moscat, Jorge;Karin, Michael;Diaz-Meco, Maria T.
通讯作者:
Diaz-Meco, Maria T.
影响因子:
16
作者:
Duran A;Amanchy R;Linares JF;Joshi J;Abu-Baker S;Porollo A;Hansen M;Moscat J;Diaz-Meco MT
通讯作者:
Diaz-Meco MT
影响因子:
16.8
作者:
Choi, Woo Suk;Jeong, Byung-Cheon;Song, Hyun Kyu
通讯作者:
Song, Hyun Kyu
影响因子:
50.3
作者:
Todoric J;Antonucci L;Di Caro G;Li N;Wu X;Lytle NK;Dhar D;Banerjee S;Fagman JB;Browne CD;Umemura A;Valasek MA;Kessler H;Tarin D;Goggins M;Reya T;Diaz-Meco M;Moscat J;Karin M
通讯作者:
Karin M
影响因子:
4.8
作者:
Lamark, T;Perander, M;Johansen, T
通讯作者:
Johansen, T