FHOD1 interaction with nesprin-2G mediates TAN line formation and nuclear movement.
FHOD1 interaction with nesprin-2G mediates TAN line formation and nuclear movement.
复制标题
FHOD1与Nesprin-2G的相互作用介导棕褐色线的形成和核运动。
DOI:
10.1038/ncb2981
复制
发表时间:
2014-07
影响因子:
21.3
通讯作者:
中科院分区:
文献类型:
--
作者:
Active positioning of the nucleus is integral to division, migration, and differentiation of mammalian cells. Fibroblasts polarizing for migration orient their centrosomes by actin-dependent nuclear movement. This nuclear movement depends on nesprin-2 giant (N2G), a large, actin-binding outer nuclear membrane component of transmembrane actin-associated (TAN) lines that couple nuclei to moving actin cables. Here, we identify the diaphanous formin FHOD1 as an interaction partner of N2G. Silencing FHOD1 expression or expression of fragments containing binding sites of N2G or FHOD1 disrupted nuclear movement and centrosome orientation in polarizing fibroblasts. Unexpectedly, silencing of FHOD1 expression did not affect the formation or rearward flow of dorsal actin cables required for nuclear positioning. Rather, N2G-FHOD1 interaction provided a second connection to actin cables essential for TAN line formation and thus nuclear movement. These results reveal a unique function for a formin in coupling an organelle to actin filaments for translocation and suggest that TAN lines require multi-point attachments to actin cables to resist the large forces necessary to move the nucleus.
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DOI:
10.1083/jcb.201303055
发表时间:
2013-09-30
期刊:
The Journal of cell biology
影响因子:
--
作者:
Alvarez DE;Agaisse H
通讯作者:
Agaisse H
影响因子:
7.8
作者:
Bartolini, Francesca;Moseley, James B.;Schmoranzer, Jan;Cassimeris, Lynne;Goode, Bruce L.;Gundersen, Gregg G.
通讯作者:
Gundersen, Gregg G.
影响因子:
48
作者:
Riedl, Julia;Crevenna, Alvaro H.;Wedlich-Soldner, Roland
通讯作者:
Wedlich-Soldner, Roland
影响因子:
3.5
作者:
Madrid, R;Gasteier, JE;Fackler, OT
通讯作者:
Fackler, OT
影响因子:
4
作者:
Koka, S;Neudauer, CL;Westendorf, JJ
通讯作者:
Westendorf, JJ