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- EMDB-32194: Coxsackievirus B3 (VP3-234Q) incubation with CD55 at pH7.4 -

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Basic information

Entry
Database: EMDB / ID: EMD-32194
TitleCoxsackievirus B3 (VP3-234Q) incubation with CD55 at pH7.4
Map data
Sample
  • Virus: Coxsackievirus B3
    • Protein or peptide: Capsid protein VP1
    • Protein or peptide: Capsid protein VP2
    • Protein or peptide: Capsid protein VP3
    • Protein or peptide: Genome polyprotein
    • Protein or peptide: Complement decay-accelerating factor
  • Ligand: PALMITIC ACID
Function / homology
Function and homology information


: / symbiont-mediated perturbation of host gene expression / negative regulation of complement activation / regulation of lipopolysaccharide-mediated signaling pathway / regulation of complement-dependent cytotoxicity / regulation of complement activation / respiratory burst / positive regulation of CD4-positive, alpha-beta T cell activation / positive regulation of CD4-positive, alpha-beta T cell proliferation / Class B/2 (Secretin family receptors) ...: / symbiont-mediated perturbation of host gene expression / negative regulation of complement activation / regulation of lipopolysaccharide-mediated signaling pathway / regulation of complement-dependent cytotoxicity / regulation of complement activation / respiratory burst / positive regulation of CD4-positive, alpha-beta T cell activation / positive regulation of CD4-positive, alpha-beta T cell proliferation / Class B/2 (Secretin family receptors) / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / ficolin-1-rich granule membrane / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / COPI-mediated anterograde transport / side of membrane / complement activation, classical pathway / transport vesicle / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / endoplasmic reticulum-Golgi intermediate compartment membrane / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / secretory granule membrane / T=pseudo3 icosahedral viral capsid / Regulation of Complement cascade / host cell cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / positive regulation of T cell cytokine production / : / nucleoside-triphosphate phosphatase / virus receptor activity / protein complex oligomerization / monoatomic ion channel activity / positive regulation of cytosolic calcium ion concentration / RNA helicase activity / DNA replication / induction by virus of host autophagy / RNA-directed RNA polymerase / membrane raft / symbiont-mediated suppression of host gene expression / viral RNA genome replication / cysteine-type endopeptidase activity / Golgi membrane / RNA-dependent RNA polymerase activity / innate immune response / DNA-templated transcription / lipid binding / host cell nucleus / Neutrophil degranulation / virion attachment to host cell / structural molecule activity / cell surface / ATP hydrolysis activity / proteolysis / RNA binding / extracellular exosome / extracellular region / ATP binding / membrane / metal ion binding / plasma membrane
Similarity search - Function
Sushi repeat (SCR repeat) / Domain abundant in complement control proteins; SUSHI repeat; short complement-like repeat (SCR) / Sushi/SCR/CCP domain / Sushi/SCR/CCP superfamily / Sushi/CCP/SCR domain profile. / Picornavirus coat protein VP4 superfamily / Poliovirus 3A protein-like / Poliovirus 3A protein like / Picornavirus 2B protein / Poliovirus core protein 3a, soluble domain ...Sushi repeat (SCR repeat) / Domain abundant in complement control proteins; SUSHI repeat; short complement-like repeat (SCR) / Sushi/SCR/CCP domain / Sushi/SCR/CCP superfamily / Sushi/CCP/SCR domain profile. / 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 / Peptidase S1, PA clan / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Genome polyprotein / Complement decay-accelerating factor
Similarity search - Component
Biological speciesCoxsackievirus B3 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.15 Å
AuthorsWang QL / Liu CC
Funding support China, 1 items
OrganizationGrant numberCountry
National Science Foundation (NSF, China)82072289 China
CitationJournal: Proc Natl Acad Sci U S A / Year: 2022
Title: Molecular basis of differential receptor usage for naturally occurring CD55-binding and -nonbinding coxsackievirus B3 strains.
Authors: Qingling Wang / Qian Yang / Congcong Liu / Guoqing Wang / Hao Song / Guijun Shang / Ruchao Peng / Xiao Qu / Sheng Liu / Yingzi Cui / Peiyi Wang / Wenbo Xu / Xin Zhao / Jianxun Qi / Mengsu Yang / George F Gao /
Abstract: Receptor usage defines cell tropism and contributes to cell entry and infection. Coxsackievirus B (CVB) engages coxsackievirus and adenovirus receptor (CAR), and selectively utilizes the decay- ...Receptor usage defines cell tropism and contributes to cell entry and infection. Coxsackievirus B (CVB) engages coxsackievirus and adenovirus receptor (CAR), and selectively utilizes the decay-accelerating factor (DAF; CD55) to infect cells. However, the differential receptor usage mechanism for CVB remains elusive. This study identified VP3-234 residues (234Q/N/V/D/E) as critical population selection determinants during CVB3 virus evolution, contributing to diverse binding affinities to CD55. Cryoelectron microscopy (cryo-EM) structures of CD55-binding/nonbinding isolates and their complexes with CD55 or CAR were obtained under both neutral and acidic conditions, and the molecular mechanism of VP3-234 residues determining CD55 affinity/specificity for naturally occurring CVB3 strains was elucidated. Structural and biochemical studies in vitro revealed the dynamic entry process of CVB3 and the function of the uncoating receptor CAR with different pH preferences. This work provides detailed insight into the molecular mechanism of CVB infection and contributes to an in-depth understanding of enterovirus attachment receptor usage.
History
DepositionNov 13, 2021-
Header (metadata) releaseJan 19, 2022-
Map releaseJan 19, 2022-
UpdateAug 10, 2022-
Current statusAug 10, 2022Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.02
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  • Surface view colored by radius
  • Surface level: 0.02
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  • Surface view with fitted model
  • Atomic models: PDB-7vy5
  • Surface level: 0.02
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-7vy5
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_32194.png

Downloads & links

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Map

FileDownload / File: emd_32194.map.gz / Format: CCP4 / Size: 307.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.08 Å
Density
Contour LevelBy AUTHOR: 0.02 / Movie #1: 0.02
Minimum - Maximum-0.09026835 - 0.1591329
Average (Standard dev.)0.0011202507 (±0.009430524)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin-216-216-216
Dimensions432432432
Spacing432432432
CellA=B=C: 466.56003 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.081.081.08
M x/y/z432432432
origin x/y/z0.0000.0000.000
length x/y/z466.560466.560466.560
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS-216-216-216
NC/NR/NS432432432
D min/max/mean-0.0900.1590.001

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Supplemental data

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Mask #1

Fileemd_32194_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Coxsackievirus B3

EntireName: Coxsackievirus B3
Components
  • Virus: Coxsackievirus B3
    • Protein or peptide: Capsid protein VP1
    • Protein or peptide: Capsid protein VP2
    • Protein or peptide: Capsid protein VP3
    • Protein or peptide: Genome polyprotein
    • Protein or peptide: Complement decay-accelerating factor
  • Ligand: PALMITIC ACID

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Supramolecule #1: Coxsackievirus B3

SupramoleculeName: Coxsackievirus B3 / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 / NCBI-ID: 12072 / Sci species name: Coxsackievirus B3 / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: No
Host (natural)Organism: Homo sapiens (human)
Host systemOrganism: Homo sapiens (human)

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Macromolecule #1: Capsid protein VP1

MacromoleculeName: Capsid protein VP1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Coxsackievirus B3
Molecular weightTheoretical: 30.167762 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: RVADTVGTGP TNSEAIPALT AAETGHTSQV VPGDTMQTRH VKNYHSRSES TIENFLCRSA CVYFTEYENS GAKRYAEWVL TPRQAAQLR RKLEFFTYVR FDLELTFVIT STQQPSTTQN QDAQILTHQI MYVPPGGPVP DKVDSYVWQT STNPSVFWTE G NAPPRMSI ...String:
RVADTVGTGP TNSEAIPALT AAETGHTSQV VPGDTMQTRH VKNYHSRSES TIENFLCRSA CVYFTEYENS GAKRYAEWVL TPRQAAQLR RKLEFFTYVR FDLELTFVIT STQQPSTTQN QDAQILTHQI MYVPPGGPVP DKVDSYVWQT STNPSVFWTE G NAPPRMSI PFLSIGNAYS NFYDGWSEFS RNGVYGINTL NNMGTLYARH VNAGSTGPIK STIRIYFKPK HVKAWIPRPP RL CQYEKAK NVNFQPSGVT TTRQSITTMT N

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Macromolecule #2: Capsid protein VP2

MacromoleculeName: Capsid protein VP2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Coxsackievirus B3
Molecular weightTheoretical: 28.076682 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: GYSDRARSIT LGNSTITTQE CANVVVGYGV WPDYLKDSEA TAEDQPTQPD VATCRFYTLD SVQWQKTSPG WWWKLPDALS NLGLFGQNM QYHYLGRTGY TVHVQCNASK FHQGCLLVVC VPEAEMGCAT LDNTPSSAEL LGGDSAKEFA DKPVASGSNK L VQRVVYNA ...String:
GYSDRARSIT LGNSTITTQE CANVVVGYGV WPDYLKDSEA TAEDQPTQPD VATCRFYTLD SVQWQKTSPG WWWKLPDALS NLGLFGQNM QYHYLGRTGY TVHVQCNASK FHQGCLLVVC VPEAEMGCAT LDNTPSSAEL LGGDSAKEFA DKPVASGSNK L VQRVVYNA GMGVGVGNLT IFPHQWINLR TNNSATIVMP YTNSVPMDNM FRHNNVTLMV IPFVPLDYCP GSTTYVPITV TI APMCAEY NGLRLAGHQ

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Macromolecule #3: Capsid protein VP3

MacromoleculeName: Capsid protein VP3 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Coxsackievirus B3
Molecular weightTheoretical: 26.227725 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: GLPTMNTPGS CQFLTSDDFQ SPSAMPQYDV TPEMRIPGEV KNLMEIAEVD SVVPVQNVGE KVNSMEAYQI PVRSNEGSGT QVFGFPLQP GYSSVFSRTL LGEILNYYTH WSGSIKLTFM FCGSAMATGK FLLAYSPPGA GAPTKRVDAM LGTHVVWDVG L QSSCVLCI ...String:
GLPTMNTPGS CQFLTSDDFQ SPSAMPQYDV TPEMRIPGEV KNLMEIAEVD SVVPVQNVGE KVNSMEAYQI PVRSNEGSGT QVFGFPLQP GYSSVFSRTL LGEILNYYTH WSGSIKLTFM FCGSAMATGK FLLAYSPPGA GAPTKRVDAM LGTHVVWDVG L QSSCVLCI PWISQTHYRY VTSDEYTAGG FITCWYQTNI VVPADAQSSC YIMCFVSACN DFSVRLLKDT PFISQQNFFQ

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Macromolecule #4: Genome polyprotein

MacromoleculeName: Genome polyprotein / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Coxsackievirus B3 / Strain: Nancy
Molecular weightTheoretical: 7.349039 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
GAQVSTQKTG AHETGLNASG NSIIHYTNIN YYKDAASNSA NRQDFTQDPG KFTEPVKDIM IKSLPALN

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Macromolecule #5: Complement decay-accelerating factor

MacromoleculeName: Complement decay-accelerating factor / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.535401 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString:
CEVPTRLNSA SLKQPYITQN YFPVGTVVEY ECRPGYRREP SLSPKLTCLQ NLKWSTAVEF CKKKSCPNPG EIRNGQIDVP GGILFGATI SFSCNTGYKL FGSTSSFCLI SGSSVQWSDP LPEC

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Macromolecule #6: PALMITIC ACID

MacromoleculeName: PALMITIC ACID / type: ligand / ID: 6 / Number of copies: 1 / Formula: PLM
Molecular weightTheoretical: 256.424 Da
Chemical component information

ChemComp-PLM:
PALMITIC ACID / Palmitic 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: 7.4
GridModel: PELCO Ultrathin Carbon with Lacey Carbon / Support film - Material: CARBON / Support film - topology: CONTINUOUS
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Calibrated defocus max: 5.0 µm / Calibrated defocus min: 1.8 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 75000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
TemperatureMin: 70.0 K / Max: 70.0 K
Image recordingFilm or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Average exposure time: 1.0 sec. / Average electron dose: 40.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 158446
CTF correctionSoftware - Name: CTFFIND (ver. 4)
Software - details: CTFFIND4 was used to estimate the CTF values
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

1cov

Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0.8)
Software - details: RELION 3.0.8 was used to determine the initial angular assignment
Final 3D classificationNumber classes: 5 / Avg.num./class: 27834 / Software - Name: RELION (ver. 3.0.8) / Software - details: RELION 3.0.8 was used to do Class3D
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0.8)
Software - details: RELION 3.0.8 was used to determine the final angular assignment
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.15 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0.8) / Number images used: 12178
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial model
PDB IDChain

1cov

chain_id: A

1cov

chain_id: B

1cov

chain_id: C

1cov

chain_id: D
RefinementSpace: REAL / Protocol: RIGID BODY FIT
Output model

PDB-7vy5:
Coxsackievirus B3 (VP3-234Q) incubation with CD55 at pH7.4

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