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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-0909 | |||||||||
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| Title | core region reconstruction. | |||||||||
Map data | core region reconstruction | |||||||||
Sample |
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Keywords | building block of vertebrate NPC. / STRUCTURAL PROTEIN | |||||||||
| Function / homology | Function and homology information: / macromolecule localization / nitrogen compound transport / nephron development / GATOR2 complex / macromolecule metabolic process / Seh1-associated complex / nuclear pore inner ring / protein exit from endoplasmic reticulum / COPII-coated vesicle budding ...: / macromolecule localization / nitrogen compound transport / nephron development / GATOR2 complex / macromolecule metabolic process / Seh1-associated complex / nuclear pore inner ring / protein exit from endoplasmic reticulum / COPII-coated vesicle budding / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery / nuclear pore outer ring / nuclear pore organization / COPII vesicle coat / post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery / attachment of mitotic spindle microtubules to kinetochore / structural constituent of nuclear pore / nucleocytoplasmic transport / poly(A)+ mRNA export from nucleus / mitotic metaphase chromosome alignment / positive regulation of TOR signaling / mRNA transport / nuclear pore / intracellular transport / mRNA export from nucleus / cellular response to nutrient levels / positive regulation of TORC1 signaling / GTPase activator activity / cellular response to amino acid starvation / kinetochore / protein import into nucleus / protein transport / nuclear membrane / lysosomal membrane / cell division / positive regulation of DNA-templated transcription / structural molecule activity / zinc ion binding / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | ||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 5.5 Å | |||||||||
Authors | Shi Y / Huang G | |||||||||
| Funding support | China, 2 items
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Citation | Journal: Cell Res / Year: 2020Title: Structure of the cytoplasmic ring of the Xenopus laevis nuclear pore complex by cryo-electron microscopy single particle analysis. Authors: Gaoxingyu Huang / Yanqing Zhang / Xuechen Zhu / Chao Zeng / Qifan Wang / Qiang Zhou / Qinghua Tao / Minhao Liu / Jianlin Lei / Chuangye Yan / Yigong Shi / ![]() Abstract: The nuclear pore complex (NPC) exhibits structural plasticity and has only been characterized at local resolutions of up to 15 Å for the cytoplasmic ring (CR). Here we present a single-particle ...The nuclear pore complex (NPC) exhibits structural plasticity and has only been characterized at local resolutions of up to 15 Å for the cytoplasmic ring (CR). Here we present a single-particle cryo-electron microscopy (cryo-EM) structure of the CR from Xenopus laevis NPC at average resolutions of 5.5-7.9 Å, with local resolutions reaching 4.5 Å. Improved resolutions allow identification and placement of secondary structural elements in the majority of the CR components. The two Y complexes in each CR subunit interact with each other and associate with those from flanking subunits, forming a circular scaffold. Within each CR subunit, the Nup358-containing region wraps around the stems of both Y complexes, likely stabilizing the scaffold. Nup205 connects the short arms of the two Y complexes and associates with the stem of a neighboring Y complex. The Nup214-containing region uses an extended coiled-coil to link Nup85 of the two Y complexes and protrudes into the axial pore of the NPC. These previously uncharacterized structural features reveal insights into NPC assembly. | |||||||||
| History |
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_0909.map.gz | 58.9 MB | EMDB map data format | |
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| Header (meta data) | emd-0909-v30.xml emd-0909.xml | 38 KB 38 KB | Display Display | EMDB header |
| Images | emd_0909.png | 46 KB | ||
| Filedesc metadata | emd-0909.cif.gz | 13 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-0909 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0909 | HTTPS FTP |
-Validation report
| Summary document | emd_0909_validation.pdf.gz | 621.6 KB | Display | EMDB validaton report |
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| Full document | emd_0909_full_validation.pdf.gz | 621.1 KB | Display | |
| Data in XML | emd_0909_validation.xml.gz | 6.1 KB | Display | |
| Data in CIF | emd_0909_validation.cif.gz | 7 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0909 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0909 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6lk8MC ![]() 0910C ![]() 0911C ![]() 0982C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_0909.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | core region reconstruction | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 2.222 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 : Cytoplasmic Ring Subunit of Xenopus laevis NPC
+Supramolecule #1: Cytoplasmic Ring Subunit of Xenopus laevis NPC
+Macromolecule #1: MGC83295 protein
+Macromolecule #2: Nuclear pore complex protein Nup85
+Macromolecule #3: MGC154553 protein
+Macromolecule #4: Nucleoporin SEH1-A
+Macromolecule #5: outer Nup160
+Macromolecule #6: MGC83926 protein
+Macromolecule #7: Nuclear pore complex protein Nup96
+Macromolecule #8: GATOR complex protein SEC13
+Macromolecule #9: Nuclear pore complex protein
+Macromolecule #10: outer Nup133
+Macromolecule #11: Nup358 complex, clamps
+Macromolecule #12: Nup214 complex Coiled-coil region 1, helix 1
+Macromolecule #13: Nup214 complex coiled coil region 1, helix 2
+Macromolecule #14: Nup214 complex coiled coil region 1, helix 3
+Macromolecule #15: Nup214 complex Coiled coil region 2, helix 1
+Macromolecule #16: Nup214 complex Coiled coil region 2, helix 2
+Macromolecule #17: Nup214 complex Coiled coil region 2, helix 3
+Macromolecule #18: bridge domain
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | tissue |
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Sample preparation
| Buffer | pH: 7.4 |
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| Grid | Model: Quantifoil / Material: COPPER |
| Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 75.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| Startup model | Type of model: EMDB MAP |
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| Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 5.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 616547 |
| Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
| Final angle assignment | Type: MAXIMUM LIKELIHOOD |
-Atomic model buiding 1
| Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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| Output model | ![]() PDB-6lk8: |
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About Yorodumi



Keywords
Authors
China, 2 items
Citation
UCSF Chimera











Z (Sec.)
Y (Row.)
X (Col.)






















