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- EMDB-34690: Pentamer of FMDV (A/TUR/14/98) in complex with M3F -

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Basic information

Entry
Database: EMDB / ID: EMD-34690
TitlePentamer of FMDV (A/TUR/14/98) in complex with M3F
Map data
Sample
  • Virus: Foot-and-mouth disease virus
    • Protein or peptide: VP1 of capsid protein
    • Protein or peptide: VP2 of capsid protein
    • Protein or peptide: VP3 of capsid protein
    • Protein or peptide: M3F
KeywordsFMDV / VIRUS / Antibody
Biological speciesFoot-and-mouth disease virus / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsLi HZ / Dong H / Liu P
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nat Commun / Year: 2024
Title: Foot-and-mouth disease virus antigenic landscape and reduced immunogenicity elucidated in atomic detail.
Authors: Haozhou Li / Pan Liu / Hu Dong / Aldo Dekker / Michiel M Harmsen / Huichen Guo / Xiangxi Wang / Shiqi Sun /
Abstract: Unlike most other picornaviruses, foot-and-mouth disease (FMD) intact virions (146S) dissociate easily into small pentameric subunits (12S). This causes a dramatically decreased immunogenicity by a ...Unlike most other picornaviruses, foot-and-mouth disease (FMD) intact virions (146S) dissociate easily into small pentameric subunits (12S). This causes a dramatically decreased immunogenicity by a mechanism that remains elusive. Here, we present the high-resolution structures of 12S (3.2 Å) and its immune complex of a single-domain antibody (VHH) targeting the particle interior (3.2 Å), as well as two 146S-specific VHHs complexed to distinct sites on the 146S capsid surface (3.6 Å and 2.9 Å). The antigenic landscape of 146S is depicted using 13 known FMD virus-antibody complexes. Comparison of the immunogenicity of 146S and 12S in pigs, focusing on the resulting antigenic sites and incorporating structural analysis, reveals that dissociation of 146S leads to structural alteration and destruction of multiple epitopes, resulting in significant differences in antibody profiles/lineages induced by 12S and 146S. Furthermore, 146S generates higher synergistic neutralizing antibody titers compared to 12S, whereas both particles induce similar total FMD virus specific antibody titers. This study can guide the structure-based rational design of novel multivalent and broad-spectrum recombinant vaccines for protection against FMD.
History
DepositionNov 8, 2022-
Header (metadata) releaseNov 15, 2023-
Map releaseNov 15, 2023-
UpdateOct 23, 2024-
Current statusOct 23, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_34690.png

Downloads & links

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Map

FileDownload / File: emd_34690.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 280 pix.
= 299.6 Å		1.07 Å/pix.
x 280 pix.
= 299.6 Å		1.07 Å/pix.
x 280 pix.
= 299.6 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.07 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.5
Minimum - Maximum-3.3247144 - 4.9179163
Average (Standard dev.)0.0035760356 (±0.13055253)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 299.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_34690_half_map_1.map
Projections & Slices
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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_34690_half_map_2.map
Projections & Slices
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Sample components

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Entire : Foot-and-mouth disease virus

EntireName: Foot-and-mouth disease virus
Components
  • Virus: Foot-and-mouth disease virus
    • Protein or peptide: VP1 of capsid protein
    • Protein or peptide: VP2 of capsid protein
    • Protein or peptide: VP3 of capsid protein
    • Protein or peptide: M3F

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Supramolecule #1: Foot-and-mouth disease virus

SupramoleculeName: Foot-and-mouth disease virus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: all / NCBI-ID: 12110 / Sci species name: Foot-and-mouth disease virus / Virus type: VIRION / Virus isolate: OTHER / Virus enveloped: No / Virus empty: Yes

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Macromolecule #1: VP1 of capsid protein

MacromoleculeName: VP1 of capsid protein / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Foot-and-mouth disease virus
Molecular weightTheoretical: 23.111094 KDa
SequenceString: TTSAGESADP VTTTVENYGG ETQVQRRHHT DVGFIMDRFV KINNTNPTHV IDLMQTHQHG LVGALLRAAT YYFSDLEIVV RHEGNLTWV PNGAPEAALS NAGNPTAYNK APFTRLALPY TAPHRVLATV YNGTSKYSTT GERTRGDLGA LAARVATQLP A SFNFGAIR ...String:
TTSAGESADP VTTTVENYGG ETQVQRRHHT DVGFIMDRFV KINNTNPTHV IDLMQTHQHG LVGALLRAAT YYFSDLEIVV RHEGNLTWV PNGAPEAALS NAGNPTAYNK APFTRLALPY TAPHRVLATV YNGTSKYSTT GERTRGDLGA LAARVATQLP A SFNFGAIR ATDISELLVR MKRAELYCPR PLLAVEVTAQ DRHKQKIIAP AKQ

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Macromolecule #2: VP2 of capsid protein

MacromoleculeName: VP2 of capsid protein / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Foot-and-mouth disease virus
Molecular weightTheoretical: 24.575779 KDa
SequenceString: DKKTEETTLL EDRTLTTRNG HTTSTTQSSV GVTYGYSTGE DHVSGPNTSG LETRVTQAER FFKKHLFNWT TDKPFGHLEK LKLPTDHKG VYGHLVDSFA YMRNGWDVEV SAVGNQFNGG CLLVAMVPEW KKFTPREKYQ LTLFPHQFIS PRTNMTAHIT V PYLGVNRY ...String:
DKKTEETTLL EDRTLTTRNG HTTSTTQSSV GVTYGYSTGE DHVSGPNTSG LETRVTQAER FFKKHLFNWT TDKPFGHLEK LKLPTDHKG VYGHLVDSFA YMRNGWDVEV SAVGNQFNGG CLLVAMVPEW KKFTPREKYQ LTLFPHQFIS PRTNMTAHIT V PYLGVNRY DQYKKHKPWT LVVMVVSPLT TSSIGATEIK VYANIAPTHV HVAGELPSKE

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Macromolecule #3: VP3 of capsid protein

MacromoleculeName: VP3 of capsid protein / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Foot-and-mouth disease virus
Molecular weightTheoretical: 24.284121 KDa
SequenceString: GIVPVACSDG YGGLVTTDPK TADPVYGKVY NPPRTNYPGR FTNLLDVAEA CPTFLCFDDG KPYVVTREDE QRLLAKFDVS LAAKHMSNT YLSGIAQYYA QYSGTINLHF MFTGSTDSKA RYMVAYVPPG VETPPDTPER AAHCIHAEWD TGLNSKFTFS I PYVSAADY ...String:
GIVPVACSDG YGGLVTTDPK TADPVYGKVY NPPRTNYPGR FTNLLDVAEA CPTFLCFDDG KPYVVTREDE QRLLAKFDVS LAAKHMSNT YLSGIAQYYA QYSGTINLHF MFTGSTDSKA RYMVAYVPPG VETPPDTPER AAHCIHAEWD TGLNSKFTFS I PYVSAADY AYTASDVAET TNVQGWVCIY QITHGKAQND TLVVSVSAGK DFELRLPIDP RTQ

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Macromolecule #4: M3F

MacromoleculeName: M3F / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 13.332694 KDa
Recombinant expressionOrganism: Yeast centromeric expression vector p416CYC (others)
SequenceString:
QVQLQQSGGG LVQAGGSLRL SCAASGRAFG YYYMGWFRQA PGKEREFVAA ISWYDGSTSY ADSVKGRFTI SRDNAKNTVD LQMNSLKSE DTAVYYCAGD RSLTVVASSW RYWGQGTQVT VSS

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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
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: DIFFRACTION / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm

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Image processing

Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 232071
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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