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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-7628 | |||||||||
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| Title | Hemagglutinin with spot-to-plunge time of 100ms | |||||||||
Map data | Hemagglutinin with spot-to-plunge time of 100ms | |||||||||
Sample |
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| Biological species | unidentified (others) | |||||||||
| Method | electron tomography / cryo EM | |||||||||
Authors | Noble AJ / Wei H / Dandey VP / Zhang Z / Potter CS / Carragher B | |||||||||
Citation | Journal: Nat Methods / Year: 2018Title: Reducing effects of particle adsorption to the air-water interface in cryo-EM. Authors: Alex J Noble / Hui Wei / Venkata P Dandey / Zhening Zhang / Yong Zi Tan / Clinton S Potter / Bridget Carragher / ![]() Abstract: Most protein particles prepared in vitreous ice for single-particle cryo-electron microscopy (cryo-EM) are adsorbed to air-water or substrate-water interfaces, which can cause the particles to adopt ...Most protein particles prepared in vitreous ice for single-particle cryo-electron microscopy (cryo-EM) are adsorbed to air-water or substrate-water interfaces, which can cause the particles to adopt preferred orientations. By using a rapid plunge-freezing robot and nanowire grids, we were able to reduce some of the deleterious effects of the air-water interface by decreasing the dwell time of particles in thin liquid films. We demonstrated this by using single-particle cryo-EM and cryo-electron tomography (cryo-ET) to examine hemagglutinin, insulin receptor complex, and apoferritin. | |||||||||
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Structure visualization
| Movie |
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| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_7628.map.gz | 1.6 GB | EMDB map data format | |
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| Header (meta data) | emd-7628-v30.xml emd-7628.xml | 8 KB 8 KB | Display Display | EMDB header |
| Images | emd_7628.png | 428.2 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-7628 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-7628 | HTTPS FTP |
-Validation report
| Summary document | emd_7628_validation.pdf.gz | 77.1 KB | Display | EMDB validaton report |
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| Full document | emd_7628_full_validation.pdf.gz | 76.2 KB | Display | |
| Data in XML | emd_7628_validation.xml.gz | 500 B | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7628 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7628 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7623C ![]() 7624C ![]() 7625C ![]() 7627C ![]() 7629C ![]() 7630C ![]() 7788C ![]() 7791C ![]() 7792C C: citing same article ( |
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| EM raw data | EMPIAR-10172 (Title: CryoET of hemagglutinin single particle with spot-to-plunge time of 100msData size: 21.9 / Data #1: Tilt-series image stacks [tilt series] Data #2: Appion-Protomo tilt-series alignments [tilt series]) |
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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_7628.map.gz / Format: CCP4 / Size: 1.9 GB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Hemagglutinin with spot-to-plunge time of 100ms | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 2.34 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 : Hemagglutinin
| Entire | Name: Hemagglutinin |
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| Components |
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-Supramolecule #1: Hemagglutinin
| Supramolecule | Name: Hemagglutinin / type: complex / ID: 1 / Parent: 0 |
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| Source (natural) | Organism: unidentified (others) |
| Recombinant expression | Organism: unidentified (others) |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | electron tomography |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 0.0001 |
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| Grid | Model: Homemade |
| Vitrification | Cryogen name: ETHANE / Instrument: OTHER Details: The value given for _emd_vitrification.instrument is SPOTITON. This is not in a list of allowed values set(['LEICA EM CPC', 'GATAN CRYOPLUNGE 3', 'LEICA PLUNGER', 'FEI VITROBOT MARK II', ...Details: The value given for _emd_vitrification.instrument is SPOTITON. This is not in a list of allowed values set(['LEICA EM CPC', 'GATAN CRYOPLUNGE 3', 'LEICA PLUNGER', 'FEI VITROBOT MARK II', 'HOMEMADE PLUNGER', 'REICHERT-JUNG PLUNGER', 'FEI VITROBOT MARK I', 'LEICA KF80', 'FEI VITROBOT MARK III', 'LEICA EM GP', 'OTHER', 'FEI VITROBOT MARK IV']) so OTHER is written into the XML file. |
| Sectioning | Other: NO SECTIONING |
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Electron microscopy
| Microscope | FEI TECNAI F20 |
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| Image recording | Film or detector model: DIRECT ELECTRON DE-20 (5k x 3k) / Detector mode: INTEGRATING / Average electron dose: 3.0 e/Å2 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.0 mm |
| Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company |
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Image processing
| Final reconstruction | Algorithm: SIMULTANEOUS ITERATIVE (SIRT) / Software - Name: TOMO3D / Software - details: SIRT, 30 iterations / Number images used: 30 |
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