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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-8743 | |||||||||
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| Title | Rabbit muscle aldolase using 200keV | |||||||||
Map data | Final sharpened map of rabbit muscle aldolase | |||||||||
Sample |
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Keywords | glycolytic enzyme / LYASE | |||||||||
| Function / homology | Function and homology informationnegative regulation of Arp2/3 complex-mediated actin nucleation / fructose-bisphosphate aldolase / fructose-bisphosphate aldolase activity / M band / I band / glycolytic process / protein homotetramerization / positive regulation of cell migration Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.6 Å | |||||||||
Authors | Herzik Jr MA / Wu M / Lander GC | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nat Methods / Year: 2017Title: Achieving better-than-3-Å resolution by single-particle cryo-EM at 200 keV. Authors: Mark A Herzik / Mengyu Wu / Gabriel C Lander / ![]() Abstract: Nearly all single-particle cryo-EM structures resolved to better than 4-Å resolution have been determined using 300-keV transmission electron microscopes (TEMs). We demonstrate that it is possible ...Nearly all single-particle cryo-EM structures resolved to better than 4-Å resolution have been determined using 300-keV transmission electron microscopes (TEMs). We demonstrate that it is possible to obtain reconstructions of macromolecular complexes of different sizes to better than 3-Å resolution using a 200-keV TEM. These structures are of sufficient quality to unambiguously assign amino acid rotameric conformations and identify ordered water molecules. | |||||||||
| 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_8743.map.gz | 7.4 MB | EMDB map data format | |
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| Header (meta data) | emd-8743-v30.xml emd-8743.xml | 20.9 KB 20.9 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_8743_fsc.xml | 12.8 KB | Display | FSC data file |
| Images | emd_8743.png | 60.1 KB | ||
| Filedesc metadata | emd-8743.cif.gz | 6.5 KB | ||
| Others | emd_8743_additional.map.gz emd_8743_half_map_1.map.gz emd_8743_half_map_2.map.gz | 7.4 MB 148.7 MB 149 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-8743 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-8743 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 5vy5MC ![]() 8741C ![]() 8742C ![]() 5vy3C ![]() 5vy4C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | |
| EM raw data | EMPIAR-10181 (Title: Rabbit muscle aldolase movies obtained using Talos Arctica operating at 200 kV equipped with a K2Data size: 1.5 TB Data #1: Raw, unaligned movie stacks of rabbit muscle aldolase acquired on a Talos Arctica using a K2 direct electron detector [micrographs - multiframe]) |
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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_8743.map.gz / Format: CCP4 / Size: 8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Final sharpened map of rabbit muscle aldolase | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.91 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Unsharpened map of rabbit muscle aldolase
| File | emd_8743_additional.map | ||||||||||||
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| Annotation | Unsharpened map of rabbit muscle aldolase | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: Rabbit muscle aldolase, odd half map
| File | emd_8743_half_map_1.map | ||||||||||||
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| Annotation | Rabbit muscle aldolase, odd half map | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: Rabbit muscle aldolase, even half map
| File | emd_8743_half_map_2.map | ||||||||||||
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| Annotation | Rabbit muscle aldolase, even half map | ||||||||||||
| Projections & Slices |
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| Density Histograms |
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Sample components
-Entire : Rabbit Muscle Aldolase
| Entire | Name: Rabbit Muscle Aldolase |
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| Components |
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-Supramolecule #1: Rabbit Muscle Aldolase
| Supramolecule | Name: Rabbit Muscle Aldolase / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all Details: Rabbit Muscle Aldolase (reconstituted from lyophilized form) |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 150 KDa |
-Macromolecule #1: Fructose-bisphosphate aldolase A
| Macromolecule | Name: Fructose-bisphosphate aldolase A / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: fructose-bisphosphate aldolase |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 39.263672 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: PHSHPALTPE QKKELSDIAH RIVAPGKGIL AADESTGSIA KRLQSIGTEN TEENRRFYRQ LLLTADDRVN PCIGGVILFH ETLYQKADD GRPFPQVIKS KGGVVGIKVD KGVVPLAGTN GETTTQGLDG LSERCAQYKK DGADFAKWRC VLKIGEHTPS A LAIMENAN ...String: PHSHPALTPE QKKELSDIAH RIVAPGKGIL AADESTGSIA KRLQSIGTEN TEENRRFYRQ LLLTADDRVN PCIGGVILFH ETLYQKADD GRPFPQVIKS KGGVVGIKVD KGVVPLAGTN GETTTQGLDG LSERCAQYKK DGADFAKWRC VLKIGEHTPS A LAIMENAN VLARYASICQ QNGIVPIVEP EILPDGDHDL KRCQYVTEKV LAAVYKALSD HHIYLEGTLL KPNMVTPGHA CT QKYSHEE IAMATVTALR RTVPPAVTGV TFLSGGQSEE EASINLNAIN KCPLLKPWAL TFSYGRALQA SALKAWGGKK ENL KAAQEE YVKRALANSL ACQGKYTPSG QAGAAASESL FISNHAY UniProtKB: Fructose-bisphosphate aldolase A |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 1.6 mg/mL | |||||||||
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| Buffer | pH: 7.5 Component:
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| Grid | Model: Quantifoil, UltrAuFoil, R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 7 sec. / Pretreatment - Atmosphere: OTHER / Pretreatment - Pressure: 0.009000000000000001 kPa / Details: 15 Watts | |||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: HOMEMADE PLUNGER Details: 3 uL of sample/grid was manually blotted for 4 seconds prior to immediate plunge-freezing in liquid nitrogen-cooled ethane.. | |||||||||
| Details | Specimen was prepared from lyophilized rabbit muscle aldolase (Sigma Aldrich) |
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Electron microscopy
| Microscope | FEI TALOS ARCTICA |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Digitization - Dimensions - Width: 7420 pixel / Digitization - Dimensions - Height: 7676 pixel / Digitization - Frames/image: 1-44 / Number grids imaged: 1 / Number real images: 810 / Average exposure time: 11.0 sec. / Average electron dose: 68.0 e/Å2 Details: Images collected using stage position navigation to target exposure. |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.7 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 45000 |
| Sample stage | Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Details | Starting model was generated by stripping PDB entry 6ALD of all ligands and alternate conformations, then refining into the EM density using imposed symmetry while adjusting weighting/scoring according to estimated map resolution. The top 10 generated models (ranked based on quality metrics) were real-space refined using Phenix software. |
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| Refinement | Space: REAL / Protocol: OTHER / Overall B value: 35 / Target criteria: Maximum Likelihood |
| Output model | ![]() PDB-5vy5: |
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Keywords
Authors
United States, 1 items
Citation
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