+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-28405 | |||||||||
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Title | Pseudomonas phage E217 baseplate complex | |||||||||
Map data | ||||||||||
Sample |
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Keywords | Pseudomonas / phage / baseplate / VIRUS | |||||||||
Function / homology | Function and homology information Baseplate hub gp41 / Baseplate component gp38 / Protein of unknown function DUF2612 / Protein of unknown function (DUF2612) / Phage protein Gp138 N-terminal domain / Phage protein Gp138 N-terminal domain / Tail fiber protein gp32 / Baseplate protein J-like / Baseplate J-like protein / Vgr protein, OB-fold domain superfamily Similarity search - Domain/homology | |||||||||
Biological species | Pseudomonas phage vB_PaeM_E217 (virus) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||
Authors | Li F / Cingolani G / Hou C | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2023 Title: High-resolution cryo-EM structure of the Pseudomonas bacteriophage E217. Authors: Fenglin Li / Chun-Feng David Hou / Ravi K Lokareddy / Ruoyu Yang / Francesca Forti / Federica Briani / Gino Cingolani / Abstract: E217 is a Pseudomonas phage used in an experimental cocktail to eradicate cystic fibrosis-associated Pseudomonas aeruginosa. Here, we describe the structure of the whole E217 virion before and after ...E217 is a Pseudomonas phage used in an experimental cocktail to eradicate cystic fibrosis-associated Pseudomonas aeruginosa. Here, we describe the structure of the whole E217 virion before and after DNA ejection at 3.1 Å and 4.5 Å resolution, respectively, determined using cryogenic electron microscopy (cryo-EM). We identify and build de novo structures for 19 unique E217 gene products, resolve the tail genome-ejection machine in both extended and contracted states, and decipher the complete architecture of the baseplate formed by 66 polypeptide chains. We also determine that E217 recognizes the host O-antigen as a receptor, and we resolve the N-terminal portion of the O-antigen-binding tail fiber. We propose that E217 design principles presented in this paper are conserved across PB1-like Myoviridae phages of the Pbunavirus genus that encode a ~1.4 MDa baseplate, dramatically smaller than the coliphage T4. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_28405.map.gz | 225.5 MB | EMDB map data format | |
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Header (meta data) | emd-28405-v30.xml emd-28405.xml | 21.9 KB 21.9 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_28405_fsc.xml | 14.2 KB | Display | FSC data file |
Images | emd_28405.png | 107.9 KB | ||
Filedesc metadata | emd-28405.cif.gz | 6.6 KB | ||
Others | emd_28405_half_map_1.map.gz emd_28405_half_map_2.map.gz | 193.5 MB 193.4 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-28405 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-28405 | HTTPS FTP |
-Validation report
Summary document | emd_28405_validation.pdf.gz | 1.3 MB | Display | EMDB validaton report |
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Full document | emd_28405_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | emd_28405_validation.xml.gz | 22 KB | Display | |
Data in CIF | emd_28405_validation.cif.gz | 28.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-28405 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-28405 | HTTPS FTP |
-Related structure data
Related structure data | 8eonMC 8envC 8frsC 8fuvC 8fvgC 8fvhC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_28405.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.12 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_28405_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_28405_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Pseudomonas phage vB_PaeM_E217
+Supramolecule #1: Pseudomonas phage vB_PaeM_E217
+Macromolecule #1: Baseplate component gp33
+Macromolecule #2: Baseplate component gp34
+Macromolecule #3: Baseplate component gp36
+Macromolecule #4: Triplex gp44-b
+Macromolecule #5: Triplex gp45
+Macromolecule #6: Baseplate component gp37
+Macromolecule #7: Baseplate component gp38
+Macromolecule #8: Baseplate hub gp41
+Macromolecule #9: Baseplate spike gp43
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 1.25 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |