Lamin A/C mutants disturb sumo1 localization and sumoylation in vitro and in vivo.
Lamin A/C mutants disturb sumo1 localization and sumoylation in vitro and in vivo.
复制标题
DOI:
10.1371/journal.pone.0045918
复制
发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Tesson F
中科院分区:
文献类型:
--
作者:
Boudreau É;Labib S;Bertrand AT;Decostre V;Bolongo PM;Sylvius N;Bonne G;Tesson F
A-type lamins A and C are nuclear intermediate filament proteins in which mutations have been implicated in multiple disease phenotypes commonly known as laminopathies. A few studies have implicated sumoylation in the regulation of A-type lamins. Sumoylation is a post-translational protein modification that regulates a wide range of cellular processes through the attachment of small ubiquitin-related modifier (sumo) to various substrates. Here we showed that laminopathy mutants result in the mislocalization of sumo1 both in vitro (C2C12 cells overexpressing mutant lamins A and C) and in vivo (primary myoblasts and myopathic muscle tissue from the LmnaH222P /H222P mouse model). In C2C12 cells, we showed that the trapping of sumo1 in p.Asp192Gly, p.Gln353Lys, and p.Arg386Lys aggregates of lamin A/C correlated with an increased steady-state level of sumoylation. However, lamin A and C did not appear to be modified by sumo1. Our results suggest that mutant lamin A/C alters the dynamics of sumo1 and thus misregulation of sumoylation may be contributing to disease progression in laminopathies.
登录
查看更多内容
影响因子:
4.8
作者:
Hang, J;Dasso, M
通讯作者:
Dasso, M
影响因子:
3.5
作者:
De Vos, Winnok H.;Houben, Frederik;Broers, Jos L. V.
通讯作者:
Broers, Jos L. V.
影响因子:
3.7
作者:
Hübner, S;Eam, JE;Jans, DA
通讯作者:
Jans, DA
影响因子:
3.5
作者:
Arimura, T;Helbling-Leclerc, A;Bonne, G
通讯作者:
Bonne, G
影响因子:
3.4
作者:
Costes, SV;Daelemans, D;Lockett, S
通讯作者:
Lockett, S