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- EMDB-82402: Cryo-EM structure of N19 Fab : D0D-S1A -

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Basic information

Entry
Database: EMDB / ID: EMD-82402
TitleCryo-EM structure of N19 Fab : D0D-S1A
Map data
Sample
  • Complex: N19 Fab : D0D-S1A
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: N19 VH
    • Protein or peptide: N19 VL
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsN19 Fab / D0D-S1A / VIRAL PROTEIN/IMMUNE SYSTEM / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion membrane / membrane
Similarity search - Function
Spike glycoprotein, Alphacoronavirus / Spike glycoprotein S1, coronavirus / Coronavirus spike glycoprotein S1 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. ...Spike glycoprotein, Alphacoronavirus / Spike glycoprotein S1, coronavirus / Coronavirus spike glycoprotein S1 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Biological speciesPorcine epidemic diarrhea virus / Sus scrofa (pig)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.3 Å
AuthorsLiu J / Wang S / Wang J / Su M / Li Z / Xiong X
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)82341085 China
CitationJournal: To Be Published
Title: Locking Spike Domain 0 Conformation Impairs Fusion and Neutralizes Porcine Epidemic Diarrhea Virus
Authors: Wang S / Liu JB / Wang JJ / Su MZ / Li ZM / Wang ZC / Ma Y / Li Y / Liu BH / Zou JH / Zhu XR / Habib G / Cheng YQ / Li HY / Zhou M / Li M / Liu YT / He J / Xiao SB / Li WT / Chen XW / Zhou HB / Xiong XL
History
DepositionJul 22, 2026-
Header (metadata) releaseAug 5, 2026-
Map releaseAug 5, 2026-
UpdateAug 5, 2026-
Current statusAug 5, 2026Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_82402.png

Downloads & links

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Map

FileDownload / File: emd_82402.map.gz / Format: CCP4 / Size: 347.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.93 Å/pix.
x 450 pix.
= 418.5 Å		0.93 Å/pix.
x 450 pix.
= 418.5 Å		0.93 Å/pix.
x 450 pix.
= 418.5 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.93 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.38
Minimum - Maximum-7.8905005 - 9.640031
Average (Standard dev.)0.0002596692 (±0.07913191)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions450450450
Spacing450450450
CellA=B=C: 418.5 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: DeepEMhancer

Fileemd_82402_additional_1.map
AnnotationDeepEMhancer
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_82402_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_82402_half_map_2.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 : N19 Fab : D0D-S1A

EntireName: N19 Fab : D0D-S1A
Components
  • Complex: N19 Fab : D0D-S1A
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: N19 VH
    • Protein or peptide: N19 VL
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: N19 Fab : D0D-S1A

SupramoleculeName: N19 Fab : D0D-S1A / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Source (natural)Organism: Porcine epidemic diarrhea virus

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Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Porcine epidemic diarrhea virus
Molecular weightTheoretical: 53.456895 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MKSLNYFWLS LPVLSTLSLP QDVTRCSANT NFRRFFSKFN VQAPAVVVLG GYLPIGENQG VNSTWHCAGQ HPTASGVHGI FVSHIRGGH GFEIGISQEP FDPSGYQLYL HKATNGNTNA TARLRICQFP SIKTLGPTAN NDVTTGRNCL FNKAIPAHMS E HSVVGITW ...String:
MKSLNYFWLS LPVLSTLSLP QDVTRCSANT NFRRFFSKFN VQAPAVVVLG GYLPIGENQG VNSTWHCAGQ HPTASGVHGI FVSHIRGGH GFEIGISQEP FDPSGYQLYL HKATNGNTNA TARLRICQFP SIKTLGPTAN NDVTTGRNCL FNKAIPAHMS E HSVVGITW DNDRVTVFSD KIYYFYFKND WSRVATKCYN SGGCAMQYVY EPTYYMLNVT SAGEDGISYQ PCTANCIGYS AN VFATEPN GHIPEGFSFN NWFLLSNDST LVHGKVVSNQ PLLVNCLLAI PKIYGLGQFF SFNQTIDGVC NGAAAQRAPE ALR FNINDT SVILAEGSIV LHTALGTNLS FVCSNSSDPY LATFATPLGA TQVPYYCFLK VDTYNSTVYK FLAVLPPTVR EIVI TKYGD VYVNGFGYLH LGLLDAVTIN FTGHGTDDDV SGFWTIASTN FVDALIEVQG TAIQRILYCD DPVSQLKCSQ VAFDL DDGF YPI

UniProtKB: Spike glycoprotein

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Macromolecule #2: N19 VH

MacromoleculeName: N19 VH / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Sus scrofa (pig)
Molecular weightTheoretical: 15.527141 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MEFRLNWVVL FALLQGVQGE EKLVESGGGL VQPGGSVRLS CVGSGFTFSG HEIIWVRQAP GKGLEWLAGS YSSGSSTYYA DSVNGRFTM SRDNSQNTAY LQMNELRTGD AAHYYCARGG VYDVNYLGDD ADLWGPGVEV VVSSA

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Macromolecule #3: N19 VL

MacromoleculeName: N19 VL / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Sus scrofa (pig)
Molecular weightTheoretical: 13.326085 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MAWTVLLIGL LAVGSGVDSQ TVIQEPAMSV SPGGTVTLTC AFSSGSVTGS NYPSWFQQTP GQPPRLLMYR TNNRPTGVPG RFSGGISGN KAALLITGAQ ANDEAVYFCK LHKTSTNGIF GGGTHLTVLG

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Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 3 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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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 / Chamber humidity: 100 % / Chamber temperature: 295 K

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Electron microscopy

MicroscopeFEI TALOS ARCTICA
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.4 µm / Nominal defocus min: 0.8 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:

6vv5

Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.3 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 530280
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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