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- EMDB-66198: CryoEM structure of Western equine encephalitis virus California ... -

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Basic information

Entry
Database: EMDB / ID: EMD-66198
TitleCryoEM structure of Western equine encephalitis virus California VLP in complex with VLDLR-LBD
Map data
Sample
  • Virus: Western equine encephalitis virus
    • Protein or peptide: Spike glycoprotein E1
    • Protein or peptide: Spike glycoprotein E2
    • Protein or peptide: Very low-density lipoprotein receptor
  • Ligand: CALCIUM ION
KeywordsWEEV / VLP / E2-E1 glycoproteins / VIRAL PROTEIN
Function / homology
Function and homology information


reelin receptor activity / VLDL clearance / glycoprotein transport / very-low-density lipoprotein particle receptor activity / ventral spinal cord development / Reelin signalling pathway / very-low-density lipoprotein particle binding / low-density lipoprotein particle receptor activity / very-low-density lipoprotein particle clearance / togavirin ...reelin receptor activity / VLDL clearance / glycoprotein transport / very-low-density lipoprotein particle receptor activity / ventral spinal cord development / Reelin signalling pathway / very-low-density lipoprotein particle binding / low-density lipoprotein particle receptor activity / very-low-density lipoprotein particle clearance / togavirin / reelin-mediated signaling pathway / very-low-density lipoprotein particle / positive regulation of dendrite development / cargo receptor activity / T=4 icosahedral viral capsid / dendrite morphogenesis / lipid transport / regulation of synapse assembly / apolipoprotein binding / cholesterol metabolic process / clathrin-coated pit / receptor-mediated endocytosis / VLDLR internalisation and degradation / memory / calcium-dependent protein binding / nervous system development / symbiont-mediated suppression of host toll-like receptor signaling pathway / host cell cytoplasm / receptor complex / symbiont-mediated suppression of host gene expression / lysosomal membrane / serine-type endopeptidase activity / fusion of virus membrane with host endosome membrane / calcium ion binding / symbiont entry into host cell / virion attachment to host cell / host cell nucleus / host cell plasma membrane / glutamatergic synapse / virion membrane / structural molecule activity / signal transduction / proteolysis / RNA binding / membrane / plasma membrane
Similarity search - Function
: / Low-density lipoprotein receptor repeat class B / LDL-receptor class B (LDLRB) repeat profile. / LDLR class B repeat / Low-density lipoprotein-receptor YWTD domain / Alphavirus E2 glycoprotein, domain B / Peptidase S3, togavirin / Alphavirus E2 glycoprotein / Alphavirus E3 spike glycoprotein / Alphavirus E1 glycoprotein ...: / Low-density lipoprotein receptor repeat class B / LDL-receptor class B (LDLRB) repeat profile. / LDLR class B repeat / Low-density lipoprotein-receptor YWTD domain / Alphavirus E2 glycoprotein, domain B / Peptidase S3, togavirin / Alphavirus E2 glycoprotein / Alphavirus E3 spike glycoprotein / Alphavirus E1 glycoprotein / Alphavirus E2 glycoprotein, domain A / Alphavirus E2 glycoprotein, domain C / Alphavirus E2 glycoprotein / Alphavirus core protein / Alphavirus E3 glycoprotein / Alphavirus E1 glycoprotein / Alphavirus core protein (CP) domain profile. / Low-density lipoprotein receptor domain class A / : / Calcium-binding EGF domain / Low-density lipoprotein (LDL) receptor class A, conserved site / LDL-receptor class A (LDLRA) domain signature. / LDL-receptor class A (LDLRA) domain profile. / Low-density lipoprotein receptor domain class A / Low-density lipoprotein (LDL) receptor class A repeat / LDL receptor-like superfamily / Six-bladed beta-propeller, TolB-like / Coagulation Factor Xa inhibitory site / EGF-type aspartate/asparagine hydroxylation site / EGF-like calcium-binding, conserved site / Calcium-binding EGF-like domain signature. / Aspartic acid and asparagine hydroxylation site. / EGF-like calcium-binding domain / Calcium-binding EGF-like domain / Epidermal growth factor-like domain. / EGF-like domain profile. / Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily / Flavivirus glycoprotein, central and dimerisation domain superfamily / Flaviviral glycoprotein E, dimerisation domain / EGF-like domain signature 2. / EGF-like domain / Immunoglobulin E-set / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan
Similarity search - Domain/homology
Structural polyprotein / Very low-density lipoprotein receptor
Similarity search - Component
Biological speciesWestern equine encephalitis virus / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.27 Å
AuthorsLiang SJ / Lou ZY
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Structural insights into VLDLR recognition by Western Equine Encephalitis Virus
Authors: Liang SJ / Lou ZY
History
DepositionSep 13, 2025-
Header (metadata) releaseNov 26, 2025-
Map releaseNov 26, 2025-
UpdateNov 26, 2025-
Current statusNov 26, 2025Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_66198.png

Downloads & links

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Map

FileDownload / File: emd_66198.map.gz / Format: CCP4 / Size: 34.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.2 Å/pix.
x 208 pix.
= 249.6 Å		1.2 Å/pix.
x 208 pix.
= 249.6 Å		1.2 Å/pix.
x 208 pix.
= 249.6 Å

Surface

Projections

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Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.2 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.08
Minimum - Maximum-0.36424655 - 0.57766885
Average (Standard dev.)0.0041849455 (±0.028428977)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions208208208
Spacing208208208
CellA=B=C: 249.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_66198_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_66198_half_map_2.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : Western equine encephalitis virus

EntireName: Western equine encephalitis virus
Components
  • Virus: Western equine encephalitis virus
    • Protein or peptide: Spike glycoprotein E1
    • Protein or peptide: Spike glycoprotein E2
    • Protein or peptide: Very low-density lipoprotein receptor
  • Ligand: CALCIUM ION

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Supramolecule #1: Western equine encephalitis virus

SupramoleculeName: Western equine encephalitis virus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 / NCBI-ID: 11039 / Sci species name: Western equine encephalitis virus / Virus type: VIRUS-LIKE PARTICLE / Virus isolate: STRAIN / Virus enveloped: Yes / Virus empty: No

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Macromolecule #1: Spike glycoprotein E1

MacromoleculeName: Spike glycoprotein E1 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Western equine encephalitis virus
Molecular weightTheoretical: 47.390863 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: FEHATTVPNV PGIPYKALVE RAGYAPLNLE ITVVSSELTP STNKEYVTCK FHTVIPSPQV KCCGSLECKA SSKADYTCRV FGGVYPFMW GGAQCFCDSE NTQLSEAYVE FAPDCTIDHA VALKVHTAAL KVGLRIVYGN TTAHLDTFVN GVTPGSSRDL K VIAGPISA ...String:
FEHATTVPNV PGIPYKALVE RAGYAPLNLE ITVVSSELTP STNKEYVTCK FHTVIPSPQV KCCGSLECKA SSKADYTCRV FGGVYPFMW GGAQCFCDSE NTQLSEAYVE FAPDCTIDHA VALKVHTAAL KVGLRIVYGN TTAHLDTFVN GVTPGSSRDL K VIAGPISA AFSPFDHKVV IRKGLVYNYD FPEYGAMKPG AFGDIQASSL YATDIVARTD IRLLKPSVKN IHVPYTQAVS GY EMWKNNS GRPLQETAPF GCKIEVEPLR ASNCAYGHIP ISIDIPDAAF VRSSESPTIL EVSCTVADCI YSADFGGSLT LQY KADREG HCPVHSHSTT AVLKEATTHV TATGSITLHF STSSPQANFI VSLCGKKTTC NAECKPPADH IIGEPHKVDQ EFQA AVSKT SWNWLLALFG GASSLIVVGL IVLVCSSMLI NTRR

UniProtKB: Structural polyprotein

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Macromolecule #2: Spike glycoprotein E2

MacromoleculeName: Spike glycoprotein E2 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Western equine encephalitis virus
Molecular weightTheoretical: 46.534066 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: SITDDFTLTS PYLGFCPYCR HSAPCFSPIK IENVWDESDD GSIRIQVSAQ FGYNQAGTAD VTKFRYMSYD HDHDIKEDSM EKIAISTSG PCRRLGHKGY FLLAQCPPGD SVTVSITSGA SENSCTVEKK IRRKFVGREE YLFPPVHGKL LKCHIYDHLK E TSAGYITM ...String:
SITDDFTLTS PYLGFCPYCR HSAPCFSPIK IENVWDESDD GSIRIQVSAQ FGYNQAGTAD VTKFRYMSYD HDHDIKEDSM EKIAISTSG PCRRLGHKGY FLLAQCPPGD SVTVSITSGA SENSCTVEKK IRRKFVGREE YLFPPVHGKL LKCHIYDHLK E TSAGYITM HRPGPHAYKS YLKEASGEVY IKPPSGKNVT YECKCGDYST GIVSTQTKMN GCTKARQCIA YTRDQTKWVF NS PDLIRHT DHSVQGKLHI PFRLTPTVCR VPLAHTPTVT KWFKGITLHL TATRPTLLTT RKLGLRADAT AEWITGTTSR NFS VGREGL EYVWGNHEPV RVWAQESAPG DPHGWPHEII IHYYHRHPVY TVIVLCGVAL AILVGTASSA ACIAKARRDC LTPY ALAPN ATVPTALAVL CCI

UniProtKB: Structural polyprotein

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Macromolecule #3: Very low-density lipoprotein receptor

MacromoleculeName: Very low-density lipoprotein receptor / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 8.783614 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
KCEPSQFQCT NGRCITLLWK CDGDEDCVDG SDEKNCVKKT CAESDFVCNN GQCVPSRWKC DGDPDCEDGS DESPEQCHM

UniProtKB: Very low-density lipoprotein receptor

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Macromolecule #4: CALCIUM ION

MacromoleculeName: CALCIUM ION / type: ligand / ID: 4 / Number of copies: 6 / Formula: CA
Molecular weightTheoretical: 40.078 Da

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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
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS TALOS
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: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.27 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 176404
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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