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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-6314 | |||||||||
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| Title | Catalase solved at 3.2 Angstrom resolution by MicroED | |||||||||
Map data | Catalase diffraction data phased by molecular replacement | |||||||||
Sample |
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Keywords | catalase / microcrystal | |||||||||
| Function / homology | Function and homology informationcatalase complex / Detoxification of Reactive Oxygen Species / Peroxisomal protein import / cellular detoxification of hydrogen peroxide / catalase / catalase activity / Neutrophil degranulation / peroxisomal matrix / positive regulation of cell division / hydrogen peroxide catabolic process ...catalase complex / Detoxification of Reactive Oxygen Species / Peroxisomal protein import / cellular detoxification of hydrogen peroxide / catalase / catalase activity / Neutrophil degranulation / peroxisomal matrix / positive regulation of cell division / hydrogen peroxide catabolic process / response to hydrogen peroxide / peroxisome / heme binding / enzyme binding / mitochondrion / metal ion binding / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | electron crystallography / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Nannenga BL / Shi D / Hattne J / Reyes FE / Gonen T | |||||||||
Citation | Journal: Elife / Year: 2014Title: Structure of catalase determined by MicroED. Authors: Brent L Nannenga / Dan Shi / Johan Hattne / Francis E Reyes / Tamir Gonen / ![]() Abstract: MicroED is a recently developed method that uses electron diffraction for structure determination from very small three-dimensional crystals of biological material. Previously we used a series of ...MicroED is a recently developed method that uses electron diffraction for structure determination from very small three-dimensional crystals of biological material. Previously we used a series of still diffraction patterns to determine the structure of lysozyme at 2.9 Å resolution with MicroED (Shi et al., 2013). Here we present the structure of bovine liver catalase determined from a single crystal at 3.2 Å resolution by MicroED. The data were collected by continuous rotation of the sample under constant exposure and were processed and refined using standard programs for X-ray crystallography. The ability of MicroED to determine the structure of bovine liver catalase, a protein that has long resisted atomic analysis by traditional electron crystallography, demonstrates the potential of this method for structure determination. | |||||||||
| History |
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Structure visualization
| Movie |
Movie viewer |
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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_6314.map.gz | 16.5 MB | EMDB map data format | |
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| Header (meta data) | emd-6314-v30.xml emd-6314.xml | 9.9 KB 9.9 KB | Display Display | EMDB header |
| Images | 400_6314.gif 80_6314.gif | 105.4 KB 5.9 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-6314 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-6314 | HTTPS FTP |
-Validation report
| Summary document | emd_6314_validation.pdf.gz | 392 KB | Display | EMDB validaton report |
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| Full document | emd_6314_full_validation.pdf.gz | 391.6 KB | Display | |
| Data in XML | emd_6314_validation.xml.gz | 4.5 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6314 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6314 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 3j7bMC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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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_6314.map.gz / Format: CCP4 / Size: 17.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Catalase diffraction data phased by molecular replacement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X: 0.75156 Å / Y: 0.79667 Å / Z: 0.75863 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 19 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : catalase
| Entire | Name: catalase |
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| Components |
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-Supramolecule #1000: catalase
| Supramolecule | Name: catalase / type: sample / ID: 1000 / Details: catalase microcrystals / Oligomeric state: tetramer / Number unique components: 1 |
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| Molecular weight | Theoretical: 240 KDa |
-Macromolecule #1: catalase
| Macromolecule | Name: catalase / type: protein_or_peptide / ID: 1 / Details: catalase microcrystals / Oligomeric state: tetramer / Recombinant expression: No / Database: NCBI |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 240 KDa |
| Sequence | UniProtKB: Catalase |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | electron crystallography |
| Aggregation state | 3D array |
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Sample preparation
| Buffer | pH: 6.3 / Details: 50 mM sodium phosphate |
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| Grid | Details: 300 mesh copper grid with holey carbon support |
| Vitrification | Cryogen name: ETHANE / Chamber temperature: 100 K / Instrument: FEI VITROBOT MARK IV Method: Crystals were added to the grid for 30 seconds and then blotted for 2 to 6 seconds. |
| Details | Catalase containing 10% sodium chloride was dialyzed overnight in 50 mM sodium phosphate to remove the sodium chloride. Crystals formed following dialysis. |
| Crystal formation | Details: Catalase containing 10% sodium chloride was dialyzed overnight in 50 mM sodium phosphate to remove the sodium chloride. Crystals formed following dialysis. |
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Electron microscopy
| Microscope | FEI TECNAI F20 |
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| Temperature | Min: 90 K / Max: 110 K / Average: 100 K |
| Date | Jun 15, 2014 |
| Image recording | Category: CCD / Film or detector model: TVIPS TEMCAM-F416 (4k x 4k) / Average electron dose: 0.1 e/Å2 / Camera length: 2000 Details: Raw diffraction images are available upon request. Contact the Gonen lab for access. |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: OTHER / Imaging mode: DIFFRACTION |
| Sample stage | Specimen holder model: GATAN LIQUID NITROGEN / Tilt angle min: -55 / Tilt angle max: 55 / Tilt series - Axis1 - Min angle: -55 ° / Tilt series - Axis1 - Max angle: 55 ° |
| Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company |
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Image processing
| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: DIFFRACTION PATTERN/LAYERLINES |
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| Crystal parameters | Unit cell - A: 67.84 Å / Unit cell - B: 172.08 Å / Unit cell - C: 182.070 Å / Unit cell - γ: 90 ° / Unit cell - α: 90 ° / Unit cell - β: 90 ° / Space group: P 21 21 21 |
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