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- EMDB-46620: Human adenovirus 6 (Ad6) in complex with coagulation Factor FX at... -
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Open data
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Basic information
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Title | Human adenovirus 6 (Ad6) in complex with coagulation Factor FX at 5.0A resolution. | |||||||||
![]() | RDAd6_FX_new_virion_5.0A | |||||||||
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![]() | Human adenovirus 6 Hexon Coagulation Factor X Binding Complex / VIRUS | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 5.0 Å | |||||||||
![]() | Reddy VS / Ma OX | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure-derived insights from blood factors binding to the surfaces of different adenoviruses. Authors: Haley E Mudrick / Shao-Chia Lu / Janarjan Bhandari / Mary E Barry / Jack R Hemsath / Felix G M Andres / Olivia X Ma / Michael A Barry / Vijay S Reddy / ![]() Abstract: The tropism of adenoviruses (Ads) is significantly influenced by the binding of various blood factors. To investigate differences in their binding, we conducted cryo-EM analysis on complexes of ...The tropism of adenoviruses (Ads) is significantly influenced by the binding of various blood factors. To investigate differences in their binding, we conducted cryo-EM analysis on complexes of several human adenoviruses with human platelet factor-4 (PF4), coagulation factors FII (Prothrombin), and FX. While we observed EM densities for FII and FX bound to all the species-C adenoviruses examined, no densities were seen for PF4, even though PF4 can co-pellet with various Ads. Similar to FX, the γ-carboxyglutamic acid (Gla) domain of FII binds within the surface cavity of hexon trimers. While FII binds equally to species-C Ads: Ad5, Ad6, and Ad657, FX exhibits significantly better binding to Ad5 and Ad657 compared to Ad6. Although only the FX-Gla domain is observed at high-resolution (3.7 Å), the entire FX is visible at low-resolution bound to Ad5 in three equivalent binding modes consistent with the 3-fold symmetric hexon. Only the Gla and kringle-1 domains of FII are visible on all the species-C adenoviruses, where the rigid FII binds in an upright fashion, in contrast to the flexible and bent FX. These data suggest that differential binding of FII and FX may shield certain species-C adenoviruses differently against immune molecules, thereby modulating their tropism. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 219.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 14.1 KB 14.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 28.1 KB | Display | ![]() |
Images | ![]() | 123.8 KB | ||
Filedesc metadata | ![]() | 4.5 KB | ||
Others | ![]() ![]() | 1.5 GB 1.6 GB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 884.6 KB | Display | ![]() |
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Full document | ![]() | 884.2 KB | Display | |
Data in XML | ![]() | 9.9 KB | Display | |
Data in CIF | ![]() | 5.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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Links
EMDB pages | ![]() ![]() |
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Map
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Annotation | RDAd6_FX_new_virion_5.0A | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.792 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: RDAd6 FX new virion 5.0A
File | emd_46620_half_map_1.map | ||||||||||||
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Annotation | RDAd6_FX_new_virion_5.0A | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: RDAd6 FX new virion 5.0A
File | emd_46620_half_map_2.map | ||||||||||||
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Annotation | RDAd6_FX_new_virion_5.0A | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Human adenovirus 6 (Ad6) in complex with coagulation Factor FX
Entire | Name: Human adenovirus 6 (Ad6) in complex with coagulation Factor FX |
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Components |
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-Supramolecule #1: Human adenovirus 6 (Ad6) in complex with coagulation Factor FX
Supramolecule | Name: Human adenovirus 6 (Ad6) in complex with coagulation Factor FX type: complex / ID: 1 / Parent: 0 / Details: Icosahedral (I1) reconstruction |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 150 MDa |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 7.2 Details: 50mM HEPES pH 7.2, 300mM NaCl, 10mM CaCl2 and 5mM MgCl2 |
Grid | Model: Quantifoil R1.2/1.3 / Support film - Material: CARBON |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 277 K |
Details | Human adenovirus 6 in complex with coagulation Factor II (Prothrombin) |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) / Number grids imaged: 2 / Number real images: 4226 / Average exposure time: 5.0 sec. / Average electron dose: 80.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 3.0 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Protocol: RIGID BODY FIT / Target criteria: Cross-correlation Coefficient |
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