The yeast Alix homolog Bro1 functions as a ubiquitin receptor for protein sorting into multivesicular endosomes.
The yeast Alix homolog Bro1 functions as a ubiquitin receptor for protein sorting into multivesicular endosomes.
复制标题
DOI:
10.1016/j.devcel.2013.04.007
复制
发表时间:
2013-06-10
影响因子:
11.8
通讯作者:
Piper, Robert C.
中科院分区:
文献类型:
--
作者:
Pashkova, Natasha;Gakhar, Lokesh;Winistorfer, Stanley C.;Sunshine, Anna B.;Rich, Matthew;Dunham, Maitreya J.;Yu, Liping;Piper, Robert C.
Sorting of ubiquitinated membrane proteins into lumenal vesicles of multivesicular bodies is mediated by the ESCRT apparatus and accessory proteins such as Bro1, which recruits the deubiquitinating enzyme Doa4 to remove ubiquitin from cargo. Here we propose that Bro1 works as a receptor for the selective sorting of ubiquitinated cargos. We found synthetic genetic interactions between BRO1 and ESCRT-0, suggesting Bro1 functions similarly to ESCRT-0. Multiple structural approaches demonstrated that Bro1 binds ubiquitin via the N-terminal trihelical arm of its middle V domain. Mutants of Bro1 that lack the ability to bind Ub were dramatically impaired in their ability to sort Ub-cargo membrane proteins, but only when combined with hypomorphic alleles of ESCRT-0. These data suggest that Bro1 and other Bro1 family members function in parallel with ESCRT-0 to recognize and sort Ub-cargos.
登录
查看更多内容
DOI:
10.1083/jcb.201110031
发表时间:
2012-04-30
期刊:
The Journal of cell biology
影响因子:
--
作者:
Dores MR;Chen B;Lin H;Soh UJ;Paing MM;Montagne WA;Meerloo T;Trejo J
通讯作者:
Trejo J
影响因子:
11.8
作者:
Dowlatshahi, Dara P.;Sandrin, Virginie;Kopito, Ron R.
通讯作者:
Kopito, Ron R.
影响因子:
6.1
作者:
Konarev, PV;Volkov, VV;Svergun, DI
通讯作者:
Svergun, DI
影响因子:
3.3
作者:
Amerik, AY;Nowak, J;Hochstrasser, M
通讯作者:
Hochstrasser, M
影响因子:
4.8
作者:
Cao, LG;Zhang, L;Zhou, MD
通讯作者:
Zhou, MD