+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-6313 | |||||||||
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Title | 2.5A structure of lysozyme solved by MicroED | |||||||||
Map data | Lysozyme electron diffraction phased by molecular replacement. PDB ID 3J6K. | |||||||||
Sample |
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Keywords | lysozyme / microcrystal | |||||||||
Function / homology | Function and homology information Lactose synthesis / Antimicrobial peptides / Neutrophil degranulation / beta-N-acetylglucosaminidase activity / cell wall macromolecule catabolic process / lysozyme / lysozyme activity / defense response to Gram-negative bacterium / killing of cells of another organism / defense response to Gram-positive bacterium ...Lactose synthesis / Antimicrobial peptides / Neutrophil degranulation / beta-N-acetylglucosaminidase activity / cell wall macromolecule catabolic process / lysozyme / lysozyme activity / defense response to Gram-negative bacterium / killing of cells of another organism / defense response to Gram-positive bacterium / defense response to bacterium / endoplasmic reticulum / extracellular space / identical protein binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Gallus gallus (chicken) | |||||||||
Method | electron crystallography / cryo EM / Resolution: 2.5 Å | |||||||||
Authors | Nannenga BL / Shi D / Leslie AGW / Gonen T | |||||||||
Citation | Journal: Nat Methods / Year: 2014 Title: High-resolution structure determination by continuous-rotation data collection in MicroED. Authors: Brent L Nannenga / Dan Shi / Andrew G W Leslie / Tamir Gonen / Abstract: MicroED uses very small three-dimensional protein crystals and electron diffraction for structure determination. We present an improved data collection protocol for MicroED called 'continuous ...MicroED uses very small three-dimensional protein crystals and electron diffraction for structure determination. We present an improved data collection protocol for MicroED called 'continuous rotation'. Microcrystals are continuously rotated during data collection, yielding more accurate data. The method enables data processing with the crystallographic software tool MOSFLM, which resulted in improved resolution for the model protein lysozyme. These improvements are paving the way for the broad implementation and application of MicroED in structural biology. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_6313.map.gz | 3.3 MB | EMDB map data format | |
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Header (meta data) | emd-6313-v30.xml emd-6313.xml | 12 KB 12 KB | Display Display | EMDB header |
Images | 400_6313.gif 80_6313.gif | 59.8 KB 4.2 KB | ||
Masks | emd_6313_msk_1.map | 965.4 KB | Mask map | |
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-6313 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-6313 | HTTPS FTP |
-Validation report
Summary document | emd_6313_validation.pdf.gz | 412.7 KB | Display | EMDB validaton report |
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Full document | emd_6313_full_validation.pdf.gz | 412.2 KB | Display | |
Data in XML | emd_6313_validation.xml.gz | 4.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6313 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6313 | HTTPS FTP |
-Related structure data
Related structure data | 3j6kMC 6342C 5a3eC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_6313.map.gz / Format: CCP4 / Size: 3.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Lysozyme electron diffraction phased by molecular replacement. PDB ID 3J6K. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X: 0.60768 Å / Y: 0.60768 Å / Z: 0.62033 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 96 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Segmentation: This mask represents the map masked around the...
Annotation | This mask represents the map masked around the asymmetric unit (PDB 3J6K) | ||||||||||||
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File | emd_6313_msk_1.map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Hen egg white lysozyme
Entire | Name: Hen egg white lysozyme |
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Components |
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-Supramolecule #1000: Hen egg white lysozyme
Supramolecule | Name: Hen egg white lysozyme / type: sample / ID: 1000 / Details: lysozyme microcrystals / Oligomeric state: 1 / Number unique components: 1 |
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Molecular weight | Theoretical: 14.3 KDa |
-Macromolecule #1: Lysozyme C
Macromolecule | Name: Lysozyme C / type: protein_or_peptide / ID: 1 / Name.synonym: lysozyme / Details: lysozyme microcrystals / Recombinant expression: No / Database: NCBI |
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Source (natural) | Organism: Gallus gallus (chicken) / synonym: Chicken / Tissue: egg white |
Molecular weight | Theoretical: 14.3 KDa |
Sequence | UniProtKB: Lysozyme C |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | electron crystallography |
Aggregation state | 3D array |
-Sample preparation
Concentration | 200 mg/mL |
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Buffer | pH: 4.5 Details: 50 mM sodium acetate, 3.5 M sodium chloride, 15% PEG5000 |
Grid | Details: 300 mesh copper grid with holey carbon support |
Vitrification | Cryogen name: ETHANE / Chamber temperature: 100 K / Instrument: FEI VITROBOT MARK IV Method: Add crystals to grid for 30 seconds and blot for 10-12 seconds. |
Details | batch crystallization |
Crystal formation | Details: batch crystallization |
-Electron microscopy
Microscope | FEI TECNAI F20 |
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Temperature | Min: 90 K / Max: 110 K / Average: 100 K |
Date | Feb 4, 2014 |
Image recording | Category: CCD / Film or detector model: TVIPS TEMCAM-F416 (4k x 4k) / Average electron dose: 0.1 e/Å2 / Camera length: 1500 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: -45 / Tilt angle max: 45 / Tilt series - Axis1 - Min angle: -45 ° / Tilt series - Axis1 - Max angle: 45 ° |
Experimental equipment | Model: Tecnai F20 / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.5 Å / Resolution method: DIFFRACTION PATTERN/LAYERLINES |
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Crystal parameters | Unit cell - A: 75.96 Å / Unit cell - B: 75.96 Å / Unit cell - C: 37.22 Å / Unit cell - γ: 90 ° / Unit cell - α: 90 ° / Unit cell - β: 90 ° / Space group: P 43 21 2 |