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Yorodumi- EMDB-30815: Cryo-EM structure of Coxsackievirus B1 mature virion in complex w... -
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Basic information
| Entry | Database: EMDB / ID: EMD-30815 | |||||||||
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| Title | Cryo-EM structure of Coxsackievirus B1 mature virion in complex with nAb 5F5 | |||||||||
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Keywords | Coxsackievirus B1 / CAR / Cryo-EM / neutralizing antibody / VIRUS / VIRUS-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationsymbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / ribonucleoside triphosphate phosphatase activity / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / viral capsid / host cell ...symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / ribonucleoside triphosphate phosphatase activity / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / viral capsid / host cell / nucleoside-triphosphate phosphatase / channel activity / monoatomic ion transmembrane transport / DNA replication / RNA helicase activity / endocytosis involved in viral entry into host cell / symbiont-mediated suppression of host gene expression / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / symbiont entry into host cell / virion attachment to host cell / host cell nucleus / structural molecule activity / proteolysis / RNA binding / zinc ion binding / ATP binding / membrane Similarity search - Function | |||||||||
| Biological species | Coxsackievirus B1 / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Li S / Zhu R | |||||||||
Citation | Journal: Cell Host Microbe / Year: 2021Title: Cryo-EM structures reveal the molecular basis of receptor-initiated coxsackievirus uncoating. Authors: Longfa Xu / Qingbing Zheng / Rui Zhu / Zhichao Yin / Hai Yu / Yu Lin / Yuanyuan Wu / Maozhou He / Yang Huang / Yichao Jiang / Hui Sun / Zhenghui Zha / Hongwei Yang / Qiongzi Huang / Dongqing ...Authors: Longfa Xu / Qingbing Zheng / Rui Zhu / Zhichao Yin / Hai Yu / Yu Lin / Yuanyuan Wu / Maozhou He / Yang Huang / Yichao Jiang / Hui Sun / Zhenghui Zha / Hongwei Yang / Qiongzi Huang / Dongqing Zhang / Zhenqin Chen / Xiangzhong Ye / Jinle Han / Lisheng Yang / Che Liu / Yuqiong Que / Mujin Fang / Ying Gu / Jun Zhang / Wenxin Luo / Z Hong Zhou / Shaowei Li / Tong Cheng / Ningshao Xia / ![]() Abstract: Enterovirus uncoating receptors bind at the surface depression ("canyon") that encircles each capsid vertex causing the release of a host-derived lipid called "pocket factor" that is buried in a ...Enterovirus uncoating receptors bind at the surface depression ("canyon") that encircles each capsid vertex causing the release of a host-derived lipid called "pocket factor" that is buried in a hydrophobic pocket formed by the major viral capsid protein, VP1. Coxsackievirus and adenovirus receptor (CAR) is a universal uncoating receptor of group B coxsackieviruses (CVB). Here, we present five high-resolution cryoEM structures of CVB representing different stages of virus infection. Structural comparisons show that the CAR penetrates deeper into the canyon than other uncoating receptors, leading to a cascade of events: collapse of the VP1 hydrophobic pocket, high-efficiency release of the pocket factor and viral uncoating and genome release under neutral pH, as compared with low pH. Furthermore, we identified a potent therapeutic antibody that can neutralize viral infection by interfering with virion-CAR interactions, destabilizing the capsid and inducing virion disruption. Together, these results define the structural basis of CVB cell entry and antibody neutralization. | |||||||||
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Structure visualization
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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_30815.map.gz | 633.2 MB | EMDB map data format | |
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| Header (meta data) | emd-30815-v30.xml emd-30815.xml | 19.2 KB 19.2 KB | Display Display | EMDB header |
| Images | emd_30815.png | 234.4 KB | ||
| Filedesc metadata | emd-30815.cif.gz | 6.6 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-30815 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30815 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7dq7MC ![]() 7dpfC ![]() 7dpgC ![]() 7dpzC ![]() 7dq1C ![]() 7dq4C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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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_30815.map.gz / Format: CCP4 / Size: 669.9 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Coxsackievirus B1 complex with nAb 5F5
+Supramolecule #1: Coxsackievirus B1 complex with nAb 5F5
+Supramolecule #2: Coxsackievirus B1
+Supramolecule #3: nAb 5F5
+Macromolecule #1: Virion protein 1
+Macromolecule #2: VP2
+Macromolecule #3: VP3
+Macromolecule #4: Capsid protein VP4
+Macromolecule #5: 5F5 VL
+Macromolecule #6: 5F5 VH
+Macromolecule #7: PALMITIC ACID
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TECNAI F30 |
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| Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 25.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Tecnai F30 / Image courtesy: FEI Company |
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Keywords
Coxsackievirus B1
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