ER membrane-bending proteins are necessary for de novo nuclear pore formation.
ER membrane-bending proteins are necessary for de novo nuclear pore formation.
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DOI:
10.1083/jcb.200806174
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发表时间:
2009-03-09
期刊:
影响因子:
--
通讯作者:
Wente SR
中科院分区:
文献类型:
--
作者:
Dawson TR;Lazarus MD;Hetzer MW;Wente SR
Nucleocytoplasmic transport occurs exclusively through nuclear pore complexes (NPCs) embedded in pores formed by inner and outer nuclear membrane fusion. The mechanism for de novo pore and NPC biogenesis remains unclear. Reticulons (RTNs) and Yop1/DP1 are conserved membrane protein families required to form and maintain the tubular endoplasmic reticulum (ER) and the postmitotic nuclear envelope. In this study, we report that members of the RTN and Yop1/DP1 families are required for nuclear pore formation. Analysis of Saccharomyces cerevisiae prp20-G282S and nup133Δ NPC assembly mutants revealed perturbations in Rtn1–green fluorescent protein (GFP) and Yop1-GFP ER distribution and colocalization to NPC clusters. Combined deletion of RTN1 and YOP1 resulted in NPC clustering, nuclear import defects, and synthetic lethality with the additional absence of Pom34, Pom152, and Nup84 subcomplex members. We tested for a direct role in NPC biogenesis using Xenopus laevis in vitro assays and found that anti-Rtn4a antibodies specifically inhibited de novo nuclear pore formation. We hypothesize that these ER membrane–bending proteins mediate early NPC assembly steps.
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影响因子:
9.8
作者:
Devos D;Dokudovskaya S;Alber F;Williams R;Chait BT;Sali A;Rout MP
通讯作者:
Rout MP
影响因子:
16.8
作者:
Drin, Guillaume;Casella, Jean-Francois;Antonny, Bruno
通讯作者:
Antonny, Bruno
DOI:
10.1083/jcb.131.5.1133
发表时间:
1995-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
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通讯作者:
Wozniak RW
影响因子:
7.8
作者:
Anderson, Daniel J.;Hetzer, Martin W.
通讯作者:
Hetzer, Martin W.
影响因子:
64.5
作者:
FINLAY, DR;FORBES, DJ
通讯作者:
FORBES, DJ