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Yorodumi- EMDB-29541: Structure of neck with portal vertex of capsid of Agrobacterium p... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-29541 | |||||||||
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Title | Structure of neck with portal vertex of capsid of Agrobacterium phage Milano | |||||||||
Map data | ||||||||||
Sample |
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Keywords | Myophage / redox trigger / VIRUS | |||||||||
Function / homology | Function and homology information | |||||||||
Biological species | Agrobacterium phage Milano (virus) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.5 Å | |||||||||
Authors | Sonani RR / Wang F / Esteves NC / Kelly RJ / Sebastian A / Kreutzberger MAB / Leiman PG / Scharf BE / Egelman EH | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Commun Biol / Year: 2023 Title: Neck and capsid architecture of the robust Agrobacterium phage Milano. Authors: Ravi R Sonani / Nathaniel C Esteves / Abigail A Horton / Rebecca J Kelly / Amanda L Sebastian / Fengbin Wang / Mark A B Kreutzberger / Petr G Leiman / Birgit E Scharf / Edward H Egelman / Abstract: Large gaps exist in our understanding of how bacteriophages, the most abundant biological entities on Earth, assemble and function. The structure of the "neck" region, where the DNA-filled capsid is ...Large gaps exist in our understanding of how bacteriophages, the most abundant biological entities on Earth, assemble and function. The structure of the "neck" region, where the DNA-filled capsid is connected to the host-recognizing tail remains poorly understood. We describe cryo-EM structures of the neck, the neck-capsid and neck-tail junctions, and capsid of the Agrobacterium phage Milano. The Milano neck 1 protein connects the 12-fold symmetrical neck to a 5-fold vertex of the icosahedral capsid. Comparison of Milano neck 1 homologs leads to four proposed classes, likely evolved from the simplest one in siphophages to more complex ones in myo- and podophages. Milano neck is surrounded by the atypical collar, which covalently crosslinks the tail sheath to neck 1. The Milano capsid is decorated with three types of proteins, a minor capsid protein (mCP) and two linking proteins crosslinking the mCP to the major capsid protein. The extensive network of disulfide bonds within and between neck, collar, capsid and tail provides an exceptional structural stability to Milano. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_29541.map.gz | 767.7 MB | EMDB map data format | |
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Header (meta data) | emd-29541-v30.xml emd-29541.xml | 23.2 KB 23.2 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_29541_fsc.xml | 20 KB | Display | FSC data file |
Images | emd_29541.png | 116.1 KB | ||
Filedesc metadata | emd-29541.cif.gz | 7 KB | ||
Others | emd_29541_half_map_1.map.gz emd_29541_half_map_2.map.gz | 765.4 MB 765.4 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-29541 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-29541 | HTTPS FTP |
-Validation report
Summary document | emd_29541_validation.pdf.gz | 1.3 MB | Display | EMDB validaton report |
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Full document | emd_29541_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | emd_29541_validation.xml.gz | 29.4 KB | Display | |
Data in CIF | emd_29541_validation.cif.gz | 39.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-29541 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-29541 | HTTPS FTP |
-Related structure data
Related structure data | 8fxrMC 8fwbC 8fwcC 8fweC 8fwgC 8fwmC 8fxpC 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_29541.map.gz / Format: CCP4 / Size: 824 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: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_29541_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_29541_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Agrobacterium phage Milano
+Supramolecule #1: Agrobacterium phage Milano
+Macromolecule #1: Linking protein 2, gp128
+Macromolecule #2: Neck 1 protein, gp14
+Macromolecule #3: Neck 2 protein, gp15
+Macromolecule #4: Linking protein 1, gp16
+Macromolecule #5: Major capsid protein, gp9
+Macromolecule #6: Minor capsid protein, gp10
+Macromolecule #7: Collar sheath protein, gp13
+Macromolecule #8: Portal protein, gp7
+Macromolecule #9: Tail-terminator protein, gp18
+Macromolecule #10: Tail-tube, gp21
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |