Beyond Tethering and the LEM domain: MSCellaneous functions of the inner nuclear membrane Lem2
Beyond Tethering and the LEM domain: MSCellaneous functions of the inner nuclear membrane Lem2
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超越束缚和 LEM 结构域:MS 内核膜 Lem2 的细胞功能
DOI:
10.1080/19491034.2016.1252892
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发表时间:
2016
期刊:
影响因子:
3.7
通讯作者:
Barrales RR
中科院分区:
文献类型:
--
作者:
Braun S;Barrales RR
The nuclear envelope plays a pivotal role in the functional organization of chromatin. Various inner nuclear membrane (INM) proteins associate with transcriptionally repressed chromatin, which is often found at the nuclear periphery. A prominent example is the conserved family of LEM (LAP2-Emerin-MAN1) domain proteins that interact with DNA-binding proteins and have been proposed to mediate tethering of chromatin to the nuclear membrane. We recently reported that the fission yeast protein Lem2, a homolog of metazoan LEM proteins, contributes to perinuclear localization and silencing of heterochromatin. We demonstrate that binding and tethering of centromeric chromatin depends on the LEM domain of Lem2. Unexpectedly, this domain is dispensable for heterochromatin silencing, which is instead mediated by a different structural domain of Lem2, the MSC (MAN1-Src1 C-terminal) domain. Hence, silencing and tethering by Lem2 can be mechanistically separated. Notably, the MSC domain has multiple functions beyond heterochromatic silencing. Here we discuss the implications of these novel findings for the understanding of this conserved INM protein.
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影响因子:
7
作者:
A. Taddei;G. van Houwe;S. Nagai;Ionas Erb;E. van Nimwegen;S. Gasser
通讯作者:
S. Gasser
DOI:
10.4161/nucl.18824
发表时间:
2012-01
期刊:
Nucleus (Austin, Tex.)
影响因子:
--
作者:
Gonzalez Y;Saito A;Sazer S
通讯作者:
Sazer S
影响因子:
4.8
作者:
Caputo, Sandrine;Couprie, Joel;Zinn-Justin, Sophie
通讯作者:
Zinn-Justin, Sophie
影响因子:
4
作者:
R. Somech;S. Shaklai;O. Geller;N. Amariglio;A. Simon;G. Rechavi;E. Gal
通讯作者:
E. Gal
DOI:
10.1083/jcb.200803098
发表时间:
2008-09-08
期刊:
The Journal of cell biology
影响因子:
--
作者:
Grund SE;Fischer T;Cabal GG;Antúnez O;Pérez-Ortín JE;Hurt E
通讯作者:
Hurt E