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- EMDB-3012: Nuclear envelope of the actinomycin D treated X. laevis nuclear p... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-3012 | |||||||||
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Title | Nuclear envelope of the actinomycin D treated X. laevis nuclear pore complex. | |||||||||
![]() | Recommended UCSF Chimera hide dust setting: size 1230.0 | |||||||||
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![]() | X. laevis / Nuclear pore complex / Nuclear envelope / Actinomycin D | |||||||||
Biological species | ![]() | |||||||||
Method | subtomogram averaging / cryo EM | |||||||||
![]() | Eibauer M / Pellanda M / Turgay Y / Dubrovsky A / Wild A / Medalia O | |||||||||
![]() | ![]() Title: Structure and gating of the nuclear pore complex. Authors: Matthias Eibauer / Mauro Pellanda / Yagmur Turgay / Anna Dubrovsky / Annik Wild / Ohad Medalia / ![]() ![]() Abstract: 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 ...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. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 2.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 9.4 KB 9.4 KB | Display Display | ![]() |
Images | ![]() | 1.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 221 KB | Display | ![]() |
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Full document | ![]() | 220.1 KB | Display | |
Data in XML | ![]() | 6.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3005C ![]() 3006C ![]() 3007C ![]() 3008C ![]() 3009C ![]() 3010C ![]() 3011C C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Recommended UCSF Chimera hide dust setting: size 1230.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 6.6 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : X. laevis nuclear pore complex
Entire | Name: X. laevis nuclear pore complex |
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Components |
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-Supramolecule #1000: X. laevis nuclear pore complex
Supramolecule | Name: X. laevis nuclear pore complex / type: sample / ID: 1000 / Details: The sample was treated with Actinomycin D. / Number unique components: 1 |
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-Macromolecule #1: Nuclear pore complex
Macromolecule | Name: Nuclear pore complex / type: protein_or_peptide / ID: 1 / Name.synonym: NPC / Recombinant expression: No |
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Source (natural) | Organism: ![]() |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | subtomogram averaging |
Aggregation state | particle |
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Sample preparation
Vitrification | Cryogen name: ETHANE / Instrument: HOMEMADE PLUNGER |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum / Energy filter - Lower energy threshold: 0.0 eV / Energy filter - Upper energy threshold: 20.0 eV |
Date | Jun 10, 2013 |
Image recording | Category: CCD / Film or detector model: GATAN ULTRASCAN 4000 (4k x 4k) / Average electron dose: 20 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 6.5 µm / Nominal defocus min: 5.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Tilt series - Axis1 - Min angle: -60 ° / Tilt series - Axis1 - Max angle: 60 ° |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Algorithm: OTHER / Software - Name: TOM / Details: Protomer averaging, subprotomer averaging / Number subtomograms used: 3409 |
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CTF correction | Details: Whole micrograph |