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- EMDB-11166: Coxsackievirus B3 in complex with capsid binder compound 17 -

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Basic information

Entry
Database: EMDB / ID: EMD-11166
TitleCoxsackievirus B3 in complex with capsid binder compound 17
Map dataCoxsackie B3 virion in complex with compound 17
Sample
  • Virus: Coxsackievirus B3 (strain Nancy)
    • Protein or peptide: capsid protein VP1
    • Protein or peptide: capsid protein VP2
    • Protein or peptide: capsid protein VP3
    • Protein or peptide: capsid protein VP4
  • Ligand: 4-[[4-[1,3-bis(oxidanylidene)isoindol-2-yl]phenyl]sulfonylamino]benzoic acid
  • Ligand: MYRISTIC ACID
Function / homology
Function and homology information


: / symbiont-mediated perturbation of host gene expression / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / 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-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid ...: / symbiont-mediated perturbation of host gene expression / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / 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-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS 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 / 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 / ATP hydrolysis activity / proteolysis / RNA binding / ATP binding / membrane / metal ion binding
Similarity search - Function
Picornavirus coat protein VP4 superfamily / Poliovirus 3A protein-like / Poliovirus 3A protein like / Picornavirus 2B protein / Poliovirus core protein 3a, soluble domain / Picornavirus 2B protein / Peptidase C3, picornavirus core protein 2A / Picornavirus core protein 2A / Picornavirus coat protein VP4 / Picornavirus coat protein (VP4) ...Picornavirus coat protein VP4 superfamily / Poliovirus 3A protein-like / Poliovirus 3A protein like / Picornavirus 2B protein / Poliovirus core protein 3a, soluble domain / Picornavirus 2B protein / Peptidase C3, picornavirus core protein 2A / Picornavirus core protein 2A / Picornavirus coat protein VP4 / Picornavirus coat protein (VP4) / Picornavirales 3C/3C-like protease domain / Picornavirales 3C/3C-like protease domain profile. / Peptidase C3A/C3B, picornaviral / 3C cysteine protease (picornain 3C) / Picornavirus capsid / picornavirus capsid protein / Helicase, superfamily 3, single-stranded RNA virus / Superfamily 3 helicase of positive ssRNA viruses domain profile. / Helicase, superfamily 3, single-stranded DNA/RNA virus / RNA helicase / Picornavirus/Calicivirus coat protein / Viral coat protein subunit / RNA-directed RNA polymerase, C-terminal domain / Viral RNA-dependent RNA polymerase / Reverse transcriptase/Diguanylate cyclase domain / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Peptidase S1, PA clan, chymotrypsin-like fold / DNA/RNA polymerase superfamily / Peptidase S1, PA clan / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Biological speciesCoxsackievirus B3 (strain Nancy)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsDomanska A / Flatt JW / Butcher SJ
Funding support Finland, 2 items
OrganizationGrant numberCountry
Academy of Finland315950 Finland
Sigrid Juselius Foundation Finland
CitationJournal: 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
DepositionJun 11, 2020-
Header (metadata) releaseMar 17, 2021-
Map releaseMar 17, 2021-
UpdateMay 31, 2023-
Current statusMay 31, 2023Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.019
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.019
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6zcl
  • Surface level: 0.019
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_11166.png

Downloads & links

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Map

FileDownload / File: emd_11166.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCoxsackie B3 virion in complex with compound 17
Voxel sizeX=Y=Z: 1.06 Å
Density
Contour LevelBy AUTHOR: 0.019 / Movie #1: 0.019
Minimum - Maximum-0.07034672 - 0.12498104
Average (Standard dev.)0.0006518885 (±0.006750057)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions420420420
Spacing420420420
CellA=B=C: 445.19998 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.061.061.06
M x/y/z420420420
origin x/y/z0.0000.0000.000
length x/y/z445.200445.200445.200
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS420420420
D min/max/mean-0.0700.1250.001

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Supplemental data

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Sample components

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Entire : Coxsackievirus B3 (strain Nancy)

EntireName: Coxsackievirus B3 (strain Nancy)
Components
  • Virus: Coxsackievirus B3 (strain Nancy)
    • Protein or peptide: capsid protein VP1
    • Protein or peptide: capsid protein VP2
    • Protein or peptide: capsid protein VP3
    • Protein or peptide: capsid protein VP4
  • Ligand: 4-[[4-[1,3-bis(oxidanylidene)isoindol-2-yl]phenyl]sulfonylamino]benzoic acid
  • Ligand: MYRISTIC ACID

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Supramolecule #1: Coxsackievirus B3 (strain Nancy)

SupramoleculeName: Coxsackievirus B3 (strain Nancy) / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Details: Virus was grown in Vero A cells and purified in CsCl gradient
NCBI-ID: 103903 / Sci species name: Coxsackievirus B3 (strain Nancy) / Sci species strain: Nancy / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: No
Host (natural)Organism: human (human)
Virus shellShell ID: 1 / Name: icasaheadron / Diameter: 300.0 Å / T number (triangulation number): 3

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Macromolecule #1: capsid protein VP1

MacromoleculeName: capsid protein VP1 / type: protein_or_peptide / ID: 1 / Details: capsid protein VP1 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A
Source (natural)Organism: Coxsackievirus B3 (strain Nancy)
Molecular weightTheoretical: 30.26893 KDa
SequenceString: RVADTVGTGP TNSEAIPALT AAETGHTSQV VPGDTMQTRH VKNYHSRSES TIENFLCRSA CVYFTEYKNS GAKRYAEWVL TPRQAAQLR RKLEFFTYVR FDLELTFVIT STQQPSTTQN QDAQILTHQI MYVPPGGPVP DKVDSYVWQT STNPSVFWTE G NAPPRMSI ...String:
RVADTVGTGP TNSEAIPALT AAETGHTSQV VPGDTMQTRH VKNYHSRSES TIENFLCRSA CVYFTEYKNS GAKRYAEWVL TPRQAAQLR RKLEFFTYVR FDLELTFVIT STQQPSTTQN QDAQILTHQI MYVPPGGPVP DKVDSYVWQT STNPSVFWTE G NAPPRMSI PFLSIGNAYS NFYDGWSEFS RNGVYGINTL NNMGTLYARH VNAGSTGPIK STIRIYFKPK HVKAWIPRPP RL CQYEKAK NVNFQPSGVT TTRQSITTMT NT

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Macromolecule #2: capsid protein VP2

MacromoleculeName: capsid protein VP2 / type: protein_or_peptide / ID: 2 / Details: capsid protein VP2 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A
Source (natural)Organism: Coxsackievirus B3 (strain Nancy)
Molecular weightTheoretical: 27.604205 KDa
SequenceString: SDRARSITLG NSTITTQECA NVVVGYGVWP DYLKDSEATA EDQPTQPDVA TCRFYTLDSV QWQKTSPGWW WKLPDALSNL GLFGQNMQY HYLGRTGYTV HVQCNASKFH QGCLLVVCVP EAEMGCATLD NTPSSAELLG GDTAKEFADK PVASGSNKLV Q RVVYNAGM ...String:
SDRARSITLG NSTITTQECA NVVVGYGVWP DYLKDSEATA EDQPTQPDVA TCRFYTLDSV QWQKTSPGWW WKLPDALSNL GLFGQNMQY HYLGRTGYTV HVQCNASKFH QGCLLVVCVP EAEMGCATLD NTPSSAELLG GDTAKEFADK PVASGSNKLV Q RVVYNAGM GVGVGNLTIF PHQWINLRTN NSATIVMPYT NSVPMDNMFR HNNVTLMVIP FVPLDYCPGS TTYVPITVTI AP MCAEYNG LRLAG

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Macromolecule #3: capsid protein VP3

MacromoleculeName: capsid protein VP3 / type: protein_or_peptide / ID: 3 / Details: capsid protein VP3 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A
Source (natural)Organism: Coxsackievirus B3 (strain Nancy)
Molecular weightTheoretical: 26.067596 KDa
SequenceString: GLPTMNTPGS CQFLTSDDFQ SPSAMPQYDV TPEMRIPGEV KNLMEIAEVD SVVPVQNVGE KVNSMEAYQI PVRSNEGSGT QVFGFPLQP GYSSVFSRTL LGEILNYYTH WSGSIKLTFM FCGSAMATGK FLLAYSPPGA GAPTKRVDAM LGTHVIWDVG L QSSCVLCI ...String:
GLPTMNTPGS CQFLTSDDFQ SPSAMPQYDV TPEMRIPGEV KNLMEIAEVD SVVPVQNVGE KVNSMEAYQI PVRSNEGSGT QVFGFPLQP GYSSVFSRTL LGEILNYYTH WSGSIKLTFM FCGSAMATGK FLLAYSPPGA GAPTKRVDAM LGTHVIWDVG L QSSCVLCI PWISQTHYRF VASDEYTAGG FITCWYQTNI VVPADAQSSC YIMCFVSACN DFSVRLLKDT PFISQQNFF

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Macromolecule #4: capsid protein VP4

MacromoleculeName: capsid protein VP4 / type: protein_or_peptide / ID: 4 / Details: myristoylated peptide, capsid protein VP4 / Number of copies: 1 / Enantiomer: LEVO / EC number: picornain 2A
Source (natural)Organism: Coxsackievirus B3 (strain Nancy)
Molecular weightTheoretical: 7.449181 KDa
SequenceString:
GAQVSTQKTG AHETRLNASG NSIIHYTNIN YYKDAASNSA NRQDFTQDPG KFTEPVKDIM IKSLPALN

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Macromolecule #5: 4-[[4-[1,3-bis(oxidanylidene)isoindol-2-yl]phenyl]sulfonylamino]b...

MacromoleculeName: 4-[[4-[1,3-bis(oxidanylidene)isoindol-2-yl]phenyl]sulfonylamino]benzoic acid
type: ligand / ID: 5 / Number of copies: 1 / Formula: FHK
Molecular weightTheoretical: 422.411 Da
Chemical component information

ChemComp-FHK:
4-[[4-[1,3-bis(oxidanylidene)isoindol-2-yl]phenyl]sulfonylamino]benzoic acid

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Macromolecule #6: MYRISTIC ACID

MacromoleculeName: MYRISTIC ACID / type: ligand / ID: 6 / Number of copies: 1 / Formula: MYR
Molecular weightTheoretical: 228.371 Da
Chemical component information

ChemComp-MYR:
MYRISTIC ACID / Myristic acid

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE / Instrument: HOMEMADE PLUNGER
DetailsPurified virus was mixed with compound 17 and incubated at room temperature for 30 min before plunging

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 47.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 18626

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