+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-11300 | |||||||||
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Title | Coxsackievirus B4 strain E2 | |||||||||
Map data | Coxsackievirus B4 strain E2 | |||||||||
Sample |
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Function / homology | Function and homology information RNA-protein covalent cross-linking / : / 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 / ribonucleoside triphosphate phosphatase activity / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane ...RNA-protein covalent cross-linking / : / 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 / ribonucleoside triphosphate phosphatase activity / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / : / nucleoside-triphosphate phosphatase / protein complex oligomerization / monoatomic ion channel activity / DNA replication / RNA helicase activity / induction by virus of host autophagy / RNA-directed RNA polymerase / symbiont-mediated suppression of host gene expression / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / DNA-templated transcription / host cell nucleus / structural molecule activity / virion attachment to host cell / proteolysis / RNA binding / ATP binding / metal ion binding Similarity search - Function | |||||||||
Biological species | Coxsackievirus B4 (strain E2) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Flatt JW / Domanska A / Butcher SJ | |||||||||
Funding support | Finland, 2 items
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Citation | Journal: Commun Biol / Year: 2021 Title: Identification of a conserved virion-stabilizing network inside the interprotomer pocket of enteroviruses. Authors: Justin W Flatt / Aušra Domanska / Alma L Seppälä / Sarah J Butcher / Abstract: Enteroviruses pose a persistent and widespread threat to human physical health, with no specific treatments available. Small molecule capsid binders have the potential to be developed as antivirals ...Enteroviruses pose a persistent and widespread threat to human physical health, with no specific treatments available. Small molecule capsid binders have the potential to be developed as antivirals that prevent virus attachment and entry into host cells. To aid with broad-range drug development, we report here structures of coxsackieviruses B3 and B4 bound to different interprotomer-targeting capsid binders using single-particle cryo-EM. The EM density maps are beyond 3 Å resolution, providing detailed information about interactions in the ligand-binding pocket. Comparative analysis revealed the residues that form a conserved virion-stabilizing network at the interprotomer site, and showed the small molecule properties that allow anchoring in the pocket to inhibit virus disassembly. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_11300.map.gz | 38.1 MB | EMDB map data format | |
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Header (meta data) | emd-11300-v30.xml emd-11300.xml | 13.3 KB 13.3 KB | Display Display | EMDB header |
Images | emd_11300.png | 276.7 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11300 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11300 | HTTPS FTP |
-Related structure data
Related structure data | 6zmsMC 6zckC 6zclC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10652 (Title: Identification of a conserved virion-stabilizing network inside the interprotomer pocket of enteroviruses Data size: 7.3 TB Data #1: Unaligned multiframe micrographs of CVB4 in complex with CP48 [micrographs - multiframe] Data #2: Aligned multi-frame micrographs dose weighted [micrographs - single frame] Data #3: Aligned non dose weighted micrographs [micrographs - single frame] Data #4: Un-aligned multiframe micrographs of CVB4 control [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_11300.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Coxsackievirus B4 strain E2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.24 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Coxsackievirus B4 (strain E2)
Entire | Name: Coxsackievirus B4 (strain E2) |
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Components |
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-Supramolecule #1: Coxsackievirus B4 (strain E2)
Supramolecule | Name: Coxsackievirus B4 (strain E2) / type: virus / ID: 1 / Parent: 0 / Macromolecule list: all / NCBI-ID: 103905 / Sci species name: Coxsackievirus B4 (strain E2) / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: No |
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Host (natural) | Organism: Homo sapiens (human) |
Virus shell | Shell ID: 1 / Name: icosahedral / Diameter: 300.0 Å / T number (triangulation number): 3 |
-Macromolecule #1: Genome polyprotein
Macromolecule | Name: Genome polyprotein / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A |
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Source (natural) | Organism: Coxsackievirus B4 (strain E2) |
Molecular weight | Theoretical: 30.685498 KDa |
Sequence | String: MGRVADTIAR GPSNSEQIPA LTAVETGHTS QVDPSDTMQT RHVHNYHSRS ESSIENFLCR SACVIYIKYS SAESNNLKRY AEWVINTRQ VAQLRRKMEM FTYIRCDMEL TFVITSHQEM STATNSDVPV QTHQIMYVPP GGPVPTSVND YVWQTSTNPS I FWTEGNAP ...String: MGRVADTIAR GPSNSEQIPA LTAVETGHTS QVDPSDTMQT RHVHNYHSRS ESSIENFLCR SACVIYIKYS SAESNNLKRY AEWVINTRQ VAQLRRKMEM FTYIRCDMEL TFVITSHQEM STATNSDVPV QTHQIMYVPP GGPVPTSVND YVWQTSTNPS I FWTEGNAP PRMSIPFMSI GNAYTMFYDG WSNFSRDGIY GYNSLNNMGT IYARHVNDSS PGGLTSTIRI YFKPKHVKAY VP RPPRLCQ YKKAKNVNFD VEAVTTERAS LVTT |
-Macromolecule #2: Genome polyprotein
Macromolecule | Name: Genome polyprotein / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A |
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Source (natural) | Organism: Coxsackievirus B4 (strain E2) |
Molecular weight | Theoretical: 27.70807 KDa |
Sequence | String: SDRVRSITLG NSTITTQECA NVVVGYGVWP DYLSDEEATA EDQPTQPDVA TCRFYTLNSV KWEMQSAGWW WKFPDALSEM GLFGQNMQY HYLGRSGYTI HVQCNASKFH QGCLLVVCVP EAEMGCTNAE NAPTYGDLCG GETAKQFEQN AVTGETAVQT A VCNAGMGV ...String: SDRVRSITLG NSTITTQECA NVVVGYGVWP DYLSDEEATA EDQPTQPDVA TCRFYTLNSV KWEMQSAGWW WKFPDALSEM GLFGQNMQY HYLGRSGYTI HVQCNASKFH QGCLLVVCVP EAEMGCTNAE NAPTYGDLCG GETAKQFEQN AVTGETAVQT A VCNAGMGV GVGNLTIYPH QWINLRTNNS ATIVMPYINS VPMDNMFRHN NFTLMIIPFA PLDYVTGASS YIPITVTVAP MS AEYNGLR LAGHQ |
-Macromolecule #3: Genome polyprotein
Macromolecule | Name: Genome polyprotein / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A |
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Source (natural) | Organism: Coxsackievirus B4 (strain E2) |
Molecular weight | Theoretical: 26.44416 KDa |
Sequence | String: GLPTMLTPGS TQFLTSDDFQ SPSAMPQFDV TPEMNIPGQV RNLMEIAEVD SVVPINNLQA NLKTMEAYRV QVRSTDEMGG QIFGFPLQP GASSVLQRTL LGEILNYYTH WSGSLKLTFV FCGSAMATGK FLLAYSPPGA GAPDSRKNAM LGTHVIWDVG L QSSCVLCV ...String: GLPTMLTPGS TQFLTSDDFQ SPSAMPQFDV TPEMNIPGQV RNLMEIAEVD SVVPINNLQA NLKTMEAYRV QVRSTDEMGG QIFGFPLQP GASSVLQRTL LGEILNYYTH WSGSLKLTFV FCGSAMATGK FLLAYSPPGA GAPDSRKNAM LGTHVIWDVG L QSSCVLCV PWISQTHYRY VVDDKYTASG FISCWYQTNV IVPAEAQKSC YIMCFVSACN DFSVRMLRDT QFIKQDTFYQ |
-Macromolecule #4: Genome polyprotein
Macromolecule | Name: Genome polyprotein / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A |
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Source (natural) | Organism: Coxsackievirus B4 (strain E2) |
Molecular weight | Theoretical: 7.499235 KDa |
Sequence | String: MGAQVSTQKT GAHETSLSAS GNSIIHYTNI NYYKDAASNS ANRQDFTQDP SKFTEPVKDV MIKSLPALN |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7 Component:
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS TALOS F200C |
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Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy |
Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 40.0 e/Å2 |
Experimental equipment | Model: Tecnai F20 / Image courtesy: FEI Company |
-Image processing
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
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Final angle assignment | Type: MAXIMUM LIKELIHOOD |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 40627 |