Structure and gating of the nuclear pore complex.
Structure and gating of the nuclear pore complex.
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DOI:
10.1038/ncomms8532
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发表时间:
2015-06-26
影响因子:
16.6
通讯作者:
Medalia, Ohad
中科院分区:
文献类型:
--
作者:
Eibauer, Matthias;Pellanda, Mauro;Turgay, Yagmur;Dubrovsky, Anna;Wild, Annik;Medalia, Ohad
Nuclear pore complexes (NPCs) perforate the nuclear envelope and allow the exchange of macromolecules between the nucleus and the cytoplasm. To acquire a deeper understanding of this transport mechanism, we analyse the structure of the NPC scaffold and permeability barrier, by reconstructing the Xenopus laevis oocyte NPC from native nuclear envelopes up to 20 Å resolution by cryo-electron tomography in conjunction with subtomogram averaging. In addition to resolving individual protein domains of the NPC constituents, we propose a model for the architecture of the molecular gate at its central channel. Furthermore, we compare and contrast this native NPC structure to one that exhibits reduced transport activity and unveil the spatial properties of the NPC gate. Nuclear pore complexes (NPCs) are large macromolecular assemblies that mediate the exchange of molecules between the nucleus and cytoplasm. Here the authors present a ∼20 Å cryo-EM structure of the X. laevis NPC in different states of transport to propose a model for the architecture of the NPC's molecular gate within its central channel.
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影响因子:
5.7
作者:
Maimon, Tal;Elad, Nadav;Medalia, Ohad
通讯作者:
Medalia, Ohad
影响因子:
2.2
作者:
Fernandez, J. J.;Li, S.;Crowther, R. A.
通讯作者:
Crowther, R. A.
DOI:
10.1016/j.str.2009.07.014
发表时间:
2009-09-09
期刊:
Structure (London, England : 1993)
影响因子:
--
作者:
Brohawn SG;Partridge JR;Whittle JR;Schwartz TU
通讯作者:
Schwartz TU
DOI:
10.1083/jcb.201411003
发表时间:
2015-02-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gaik M;Flemming D;von Appen A;Kastritis P;Mücke N;Fischer J;Stelter P;Ori A;Bui KH;Baßler J;Barbar E;Beck M;Hurt E
通讯作者:
Hurt E
影响因子:
16.8
作者:
Kampmann, Martin;Atkinson, Claire E.;Mattheyses, Alexa L.;Simon, Sanford M.
通讯作者:
Simon, Sanford M.