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- EMDB-70318: PV2-10D2 Complex -

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Basic information

Entry
Database: EMDB / ID: EMD-70318
TitlePV2-10D2 Complex
Map dataEM Map of PV2-10D2 Complex
Sample
  • Complex: PV2-10D2 complex
    • Protein or peptide: Capsid protein VP1
    • Protein or peptide: Capsid protein VP2
    • Protein or peptide: Capsid protein VP3
    • Protein or peptide: Capsid protein VP4
    • Protein or peptide: 10D2 Heavy Chain
    • Protein or peptide: 10D2 Light Chain
  • Ligand: PALMITIC ACID
KeywordsVirus / Antibody / Complex
Function / homology
Function and homology information


symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / receptor-mediated endocytosis of virus by host cell / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / 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 / T=pseudo3 icosahedral viral capsid / ribonucleoside triphosphate phosphatase activity ...symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / receptor-mediated endocytosis of virus by host cell / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / 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 / T=pseudo3 icosahedral viral capsid / ribonucleoside triphosphate phosphatase activity / host cell cytoplasmic vesicle membrane / viral capsid / nucleoside-triphosphate phosphatase / channel activity / monoatomic ion transmembrane transport / host cell cytoplasm / 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 / virion attachment to host cell / host cell nucleus / structural molecule activity / proteolysis / RNA binding / zinc ion binding / ATP binding / membrane
Similarity search - Function
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) / Peptidase C3A/C3B, picornaviral ...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) / Peptidase C3A/C3B, picornaviral / 3C cysteine protease (picornain 3C) / Picornavirales 3C/3C-like protease domain / Picornavirales 3C/3C-like protease domain profile. / 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 / Reverse transcriptase/Diguanylate cyclase domain / RNA-directed RNA polymerase, C-terminal domain / Viral RNA-dependent RNA polymerase / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / 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 / Genome polyprotein / Genome polyprotein
Similarity search - Component
Biological speciesPoliovirus 2 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.65 Å
AuthorsWaddey BT / Hafenstein SL
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI10721-01 United States
CitationJournal: Nat Commun / Year: 2026
Title: Neutralizing human monoclonal antibodies to poliovirus map to the receptor binding site.
Authors: Benjamin T Waddey / Andrew J Charnesky / Julia E Faust / Nadia M DiNunno / Rama Devudu Puligedda / Sung Hyun Cho / Carol M Bator / Steven D Dong / Kutub Mahmood / Konstantin M Chumakov / ...Authors: Benjamin T Waddey / Andrew J Charnesky / Julia E Faust / Nadia M DiNunno / Rama Devudu Puligedda / Sung Hyun Cho / Carol M Bator / Steven D Dong / Kutub Mahmood / Konstantin M Chumakov / Scott K Dessain / Susan L Hafenstein /
Abstract: Poliovirus remains a serious threat to human health. Complete eradication of wild-type poliovirus has not yet succeeded, making the development of successful antivirals critical. Microneutralization ...Poliovirus remains a serious threat to human health. Complete eradication of wild-type poliovirus has not yet succeeded, making the development of successful antivirals critical. Microneutralization assays against all three poliovirus serotypes identified a panel of human monoclonal IgGs, which are either serotype-specific or cross-neutralizing. Here, through cryoEM single particle analysis, we solved high resolution structures of four distinct poliovirus-FAb complexes. These antibodies bind to capsids at the circular depression (canyon) surrounding the icosahedral five-fold symmetry axis, which is also the binding site of the poliovirus receptor (PVR). Analysis of these structures confirms overlap of FAb contacts on the viral capsid with those of PVR. For three of the FAbs, the capsid residues are identified that dictate serotype-specific recognition. Contacts for the cross-neutralizing mAb 10D2 are located deep in the capsid canyon. These structural analyses indicate that antibody competition with the receptor likely leads to neutralization of virus particles and inhibition of poliovirus entry into host cells. Thus, the human IgGs studied here may facilitate development of therapeutics for the ongoing efforts in global eradication of poliovirus.
History
DepositionApr 24, 2025-
Header (metadata) releaseDec 17, 2025-
Map releaseDec 17, 2025-
UpdateJan 14, 2026-
Current statusJan 14, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_70318.png

Downloads & links

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Map

FileDownload / File: emd_70318.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationEM Map of PV2-10D2 Complex
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.3 Å/pix.
x 600 pix.
= 780. Å		1.3 Å/pix.
x 600 pix.
= 780. Å		1.3 Å/pix.
x 600 pix.
= 780. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.3 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.783
Minimum - Maximum-1.2575991 - 3.3273335
Average (Standard dev.)-0.0025303182 (±0.18773289)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin-300-300-300
Dimensions600600600
Spacing600600600
CellA=B=C: 780.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half Map 2 of 10D2 map.mrc file

Fileemd_70318_half_map_1.map
AnnotationHalf Map 2 of 10D2_map.mrc file
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map 1 of 10D2 map.mrc file

Fileemd_70318_half_map_2.map
AnnotationHalf Map 1 of 10D2_map.mrc file
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : PV2-10D2 complex

EntireName: PV2-10D2 complex
Components
  • Complex: PV2-10D2 complex
    • Protein or peptide: Capsid protein VP1
    • Protein or peptide: Capsid protein VP2
    • Protein or peptide: Capsid protein VP3
    • Protein or peptide: Capsid protein VP4
    • Protein or peptide: 10D2 Heavy Chain
    • Protein or peptide: 10D2 Light Chain
  • Ligand: PALMITIC ACID

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Supramolecule #1: PV2-10D2 complex

SupramoleculeName: PV2-10D2 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Poliovirus 2
Molecular weightTheoretical: 8 MDa

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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: Poliovirus 2
Molecular weightTheoretical: 33.039145 KDa
SequenceString: GLGDLIEGVV EGVTRNALTP LTPANNLPDT QSSGPAHSKE TPALTAVETG ATNPLVPSDT VQTRHVIQKR TRSESTVESF FARGACVAI IEVDNDAPTK RASKLFSVWK ITYKDTVQLR RKLEFFTYSR FDMEFTFVVT SNYTDANNGH ALNQVYQIMY I PPGAPIPG ...String:
GLGDLIEGVV EGVTRNALTP LTPANNLPDT QSSGPAHSKE TPALTAVETG ATNPLVPSDT VQTRHVIQKR TRSESTVESF FARGACVAI IEVDNDAPTK RASKLFSVWK ITYKDTVQLR RKLEFFTYSR FDMEFTFVVT SNYTDANNGH ALNQVYQIMY I PPGAPIPG KWNDYTWQTS SNPSVFYTYG APPARISVPY VGIANAYSHF YDGFAKVPLA GQASTEGDSL YGAASLNDFG SL AVRVVND HNPTKLTSKI RVYMKPKHVR VWCPRPPRAV PYYGPGVDYK DGLAPLPGKG LTTY

UniProtKB: Genome polyprotein

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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: Poliovirus 2
Molecular weightTheoretical: 29.980822 KDa
SequenceString: SPNIEACGYS VRVMQLTLGN STITTQEAAN SVVAYGRWPE YIKDSEANPV DQPTEPDVAA CRFYTLDTVT WRKESRGWWW KLPDALKDM GLFGQNMFYH YLGRAGYTVH VQCNASKFHQ GALGVFAVPE MCLAGDSTTH MFTKYENANP GEKGGEFKGS F TLDTNATN ...String:
SPNIEACGYS VRVMQLTLGN STITTQEAAN SVVAYGRWPE YIKDSEANPV DQPTEPDVAA CRFYTLDTVT WRKESRGWWW KLPDALKDM GLFGQNMFYH YLGRAGYTVH VQCNASKFHQ GALGVFAVPE MCLAGDSTTH MFTKYENANP GEKGGEFKGS F TLDTNATN PARNFCPVDY LFGSGVLAGN AFVYPHQIIN LRTNNCATLV LPYVNSLSID SMTKHNNWGI AILPLAPLDF AT ESSTEIP ITLTIAPMCC EFNGLRNITV PRTQ

UniProtKB: Genome polyprotein

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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: Poliovirus 2
Molecular weightTheoretical: 26.115852 KDa
SequenceString: GLPVLNTPGS NQYLTADNYQ SPCAIPEFDV TPPIDIPGEV RNMMELAEID TMIPLNLTNQ RKNTMDMYRV ELNDAAHSDT PILCLSLSP ASDPRLAHTM LGEILNYYTH WAGSLKFTFL FCGSMMATGK LLVSYAPPGA EAPKSRKEAM LGTHVIWDIG L QSSCTMVV ...String:
GLPVLNTPGS NQYLTADNYQ SPCAIPEFDV TPPIDIPGEV RNMMELAEID TMIPLNLTNQ RKNTMDMYRV ELNDAAHSDT PILCLSLSP ASDPRLAHTM LGEILNYYTH WAGSLKFTFL FCGSMMATGK LLVSYAPPGA EAPKSRKEAM LGTHVIWDIG L QSSCTMVV PWISNTTYRQ TINDSFTEGG YISMFYQTRV VVPLSTPRKM DILGFVSACN DFSVRLLRDT THISQEA

UniProtKB: Genome polyprotein

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Macromolecule #4: Capsid protein VP4

MacromoleculeName: Capsid protein VP4 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Poliovirus 2
Molecular weightTheoretical: 7.346957 KDa
SequenceString:
GAQVSSQKVG AHENSNRAYG GSTINYTTIN YYRDSASNAA SKQDFAQDPS KFTEPIKDVL IKTAPTLN

UniProtKB: Genome polyprotein

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Macromolecule #5: 10D2 Heavy Chain

MacromoleculeName: 10D2 Heavy Chain / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.713181 KDa
SequenceString:
QVQLQQSGPG LVKPSETLSL TCAISGDSVS SKSAAWNWIR QSPSRGLEWL GRTYYRSKWS HNYAVSVRSR VTINPDTSKN QFSLHLNSV TPEDTAVYYC TRASPSAYTH GWYGSYYYGM DVWGQGTTVT VSS

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Macromolecule #6: 10D2 Light Chain

MacromoleculeName: 10D2 Light Chain / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.453527 KDa
SequenceString:
QSALTQPASV SGSPGQSITI SCTGSSSDIS DYNYVAWYQQ HPGKAPKLII SDVSIRPSGV SARFSGSKSG NTASLTISGL QVEDEADYY CSSYTSDINI LFGGGTKLTV L

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Macromolecule #7: PALMITIC ACID

MacromoleculeName: PALMITIC ACID / type: ligand / ID: 7 / Number of copies: 1 / Formula: PLM
Molecular weightTheoretical: 256.424 Da
Chemical component information

ChemComp-PLM:
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: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TECNAI ARCTICA
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.75 µm
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

8e8s

Final reconstructionApplied symmetry - Point group: I (icosahedral) / Resolution.type: BY AUTHOR / Resolution: 3.65 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.6.2) / Number images used: 21606
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: RANDOM ASSIGNMENT
FSC plot (resolution estimation)

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