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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-8218 | |||||||||
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| Title | MicroED structure of xylanase at 2.3 A resolution | |||||||||
Map data | Xylanase | |||||||||
Sample |
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Keywords | Hydrolase | |||||||||
| Function / homology | Function and homology informationendo-1,4-beta-xylanase activity / endo-1,4-beta-xylanase / xylan catabolic process / extracellular region Similarity search - Function | |||||||||
| Biological species | Trichoderma reesei (fungus) / Hypocrea jecorina (fungus) | |||||||||
| Method | electron crystallography / cryo EM / Resolution: 2.3 Å | |||||||||
Authors | de la Cruz MJ / Hattne J | |||||||||
Citation | Journal: Nat Methods / Year: 2017Title: Atomic-resolution structures from fragmented protein crystals with the cryoEM method MicroED. Authors: M Jason de la Cruz / Johan Hattne / Dan Shi / Paul Seidler / Jose Rodriguez / Francis E Reyes / Michael R Sawaya / Duilio Cascio / Simon C Weiss / Sun Kyung Kim / Cynthia S Hinck / Andrew P ...Authors: M Jason de la Cruz / Johan Hattne / Dan Shi / Paul Seidler / Jose Rodriguez / Francis E Reyes / Michael R Sawaya / Duilio Cascio / Simon C Weiss / Sun Kyung Kim / Cynthia S Hinck / Andrew P Hinck / Guillermo Calero / David Eisenberg / Tamir Gonen / ![]() Abstract: Traditionally, crystallographic analysis of macromolecules has depended on large, well-ordered crystals, which often require significant effort to obtain. Even sizable crystals sometimes suffer from ...Traditionally, crystallographic analysis of macromolecules has depended on large, well-ordered crystals, which often require significant effort to obtain. Even sizable crystals sometimes suffer from pathologies that render them inappropriate for high-resolution structure determination. Here we show that fragmentation of large, imperfect crystals into microcrystals or nanocrystals can provide a simple path for high-resolution structure determination by the cryoEM method MicroED and potentially by serial femtosecond crystallography. | |||||||||
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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_8218.map.gz | 1010.5 KB | EMDB map data format | |
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| Header (meta data) | emd-8218-v30.xml emd-8218.xml | 14.9 KB 14.9 KB | Display Display | EMDB header |
| Images | emd_8218.png | 193 KB | ||
| Filedesc metadata | emd-8218.cif.gz | 5.4 KB | ||
| Filedesc structureFactors | emd_8218_sf.cif.gz | 683.5 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-8218 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-8218 | HTTPS FTP |
-Validation report
| Summary document | emd_8218_validation.pdf.gz | 557.1 KB | Display | EMDB validaton report |
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| Full document | emd_8218_full_validation.pdf.gz | 556.6 KB | Display | |
| Data in XML | emd_8218_validation.xml.gz | 4.2 KB | Display | |
| Data in CIF | emd_8218_validation.cif.gz | 4.7 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-8218 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-8218 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 5k7pMC ![]() 8216C ![]() 8217C ![]() 8219C ![]() 8220C ![]() 8221C ![]() 8222C ![]() 8472C ![]() 5k7nC ![]() 5k7oC ![]() 5k7qC ![]() 5k7rC ![]() 5k7sC ![]() 5k7tC ![]() 5ty4C C: citing same article ( M: atomic model generated by this map |
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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_8218.map.gz / Format: CCP4 / Size: 1.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Xylanase | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X: 0.75252 Å / Y: 0.7469 Å / Z: 0.79332 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 : Xylanase
| Entire | Name: Xylanase |
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| Components |
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-Supramolecule #1: Xylanase
| Supramolecule | Name: Xylanase / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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| Source (natural) | Organism: Trichoderma reesei (fungus) |
| Molecular weight | Theoretical: 21.035 KDa |
-Macromolecule #1: Endo-1,4-beta-xylanase 2
| Macromolecule | Name: Endo-1,4-beta-xylanase 2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: endo-1,4-beta-xylanase |
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| Source (natural) | Organism: Hypocrea jecorina (fungus) |
| Molecular weight | Theoretical: 20.855467 KDa |
| Sequence | String: QTIQPGTGYN NGYFYSYWND GHGGVTYTNG PGGQFSVNWS NSGNFVGGKG WQPGTKNKVI NFSGSYNPNG NSYLSVYGWS RNPLIEYYI VENFGTYNPS TGATKLGEVT SDGSVYDIYR TQRVNQPSII GTATFYQYWS VRRNHRSSGS VNTANHFNAW A QQGLTLGT MDYQIVAVEG YFSSGSASIT VS UniProtKB: Endo-1,4-beta-xylanase 2 |
-Macromolecule #2: IODIDE ION
| Macromolecule | Name: IODIDE ION / type: ligand / ID: 2 / Number of copies: 2 / Formula: IOD |
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| Molecular weight | Theoretical: 126.904 Da |
| Chemical component information | ![]() ChemComp-IOD: |
-Macromolecule #3: water
| Macromolecule | Name: water / type: ligand / ID: 3 / Number of copies: 23 / Formula: HOH |
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| Molecular weight | Theoretical: 18.015 Da |
| Chemical component information | ![]() ChemComp-HOH: |
-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: 9 Component:
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TECNAI F20 |
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| Image recording | Film or detector model: TVIPS TEMCAM-F416 (4k x 4k) / Digitization - Dimensions - Width: 2048 pixel / Digitization - Dimensions - Height: 2048 pixel / Number grids imaged: 1 / Number real images: 588 / Number diffraction images: 588 / Average exposure time: 4.1 sec. / Average electron dose: 0.004 e/Å2 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: DIFFRACTION / Camera length: 1750 mm |
| Sample stage | Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Trichoderma reesei (fungus)
Authors
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