The E3 Ubiquitin Ligase SYVN1 Ubiquitinates Atlastins to Remodel the Endoplasmic Reticulum Network
The E3 Ubiquitin Ligase SYVN1 Ubiquitinates Atlastins to Remodel the Endoplasmic Reticulum Network
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E3 泛素连接酶 SYVN1 泛素化 Atlastin 以重塑内质网网络
DOI:
10.1016/j.isci.2020.101494
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发表时间:
2020-08
期刊:
影响因子:
5.8
通讯作者:
Yanfen Liu
中科院分区:
文献类型:
--
作者:
Yupeng Zhao;Zhigang Feng;Yan Zou;Yanfen Liu
Atlastin (ATL) is a class of dynamin-like GTPases shaping endoplasmic reticulum (ER) by mediating homotypic membrane fusion. Defect of ATLs leads to abnormal ER structure and hereditary spastic paraplegia (HSP), a neurodegenerative disease with progressive spasticity. How ATLs are regulated to maintain the ER dynamics is not clear. Here, we found that SYVN1, an E3 ubiquitin ligase on the ER membrane, regulates ER shape and COPII exporting by mediating ubiquitination on ATLs, especially ATL1. ATL1 is ubiquitinated by SYVN1 strongly on K285 and mildly on K287. Ubiquitination on ATL1 does not result in protein degradation but inhibits ATL1 GTPase activity.SYVN1overexpression compensates the excessive ER network fusion caused byATL1overexpression. Accordingly, the role of SYVN1 and ATL1 in regulating ER morphology is also recapitulated inCaenorhabditis elegans. Taken together, our study reveals a different role of SYVN1 in ER remodeling through mediating ubiquitination on ATLs.
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影响因子:
3.3
作者:
Zhang T;Xu Y;Liu Y;Ye Y
通讯作者:
Ye Y
影响因子:
16.6
作者:
Nucifora FC Jr;Nucifora LG;Ng CH;Arbez N;Guo Y;Roby E;Shani V;Engelender S;Wei D;Wang XF;Li T;Moore DJ;Pletnikova O;Troncoso JC;Sawa A;Dawson TM;Smith W;Lim KL;Ross CA
通讯作者:
Ross CA
DOI:
10.1073/pnas.1504368112
发表时间:
2015-04-14
影响因子:
11.1
作者:
Liu, Tina Y.;Bian, Xin;Hu, Junjie
通讯作者:
Hu, Junjie
DOI:
10.1073/pnas.1423026112
发表时间:
2015-01-13
影响因子:
11.1
作者:
Chen, Shuliang;Desai, Tanvi;Novick, Peter J.
通讯作者:
Novick, Peter J.
影响因子:
1.9
作者:
Macedo-Souza, Lucia Ines;Kok, Fernando;Zatz, Mayana
通讯作者:
Zatz, Mayana