The ER membrane protein complex is a transmembrane domain insertase.
The ER membrane protein complex is a transmembrane domain insertase.
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ER膜蛋白复合物是跨膜结构域插入酶。
DOI:
10.1126/science.aao3099
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发表时间:
2018-01-26
期刊:
影响因子:
--
通讯作者:
Hegde RS
中科院分区:
文献类型:
--
作者:
Guna A;Volkmar N;Christianson JC;Hegde RS
Insertion of proteins into membranes is an essential cellular process. The extensive biophysical and topological diversity of membrane proteins necessitates multiple insertion pathways that remain incompletely defined. Here we found that known membrane insertion pathways fail to effectively engage tail-anchored membrane proteins with moderately hydrophobic transmembrane domains. These proteins are instead shielded in the cytosol by calmodulin. Dynamic release from calmodulin allowed sampling of the endoplasmic reticulum (ER), where the conserved ER membrane protein complex (EMC) was shown to be essential for efficient insertion in vitro and in cells. Purified EMC in synthetic liposomes catalyzed the insertion of its substrates in a reconstituted system. Thus, EMC is a transmembrane domain insertase, a function that may explain its widely pleiotropic membrane-associated phenotypes across organisms.
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影响因子:
8.8
作者:
Anghel SA;McGilvray PT;Hegde RS;Keenan RJ
通讯作者:
Keenan RJ
DOI:
10.1038/nrm3226
发表时间:
2011-11-16
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
64.8
作者:
Hessa, Tara;Sharma, Ajay;Mariappan, Malaiyalam;Eshleman, Heather D.;Gutierrez, Erik;Hegde, Ramanujan S.
通讯作者:
Hegde, Ramanujan S.
影响因子:
4.6
作者:
Rivera-Monroy J;Musiol L;Unthan-Fechner K;Farkas Á;Clancy A;Coy-Vergara J;Weill U;Gockel S;Lin SY;Corey DP;Kohl T;Ströbel P;Schuldiner M;Schwappach B;Vilardi F
通讯作者:
Vilardi F
影响因子:
4.8
作者:
Abell, BM;Jung, M;High, S
通讯作者:
High, S