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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | SINV-WEEV Fleming in complex with VLDLR LA(1-2) | |||||||||
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![]() | Alphavirus Receptor / VIRUS / VIRAL PROTEIN | |||||||||
Function / homology | ![]() reelin receptor activity / glycoprotein transport / VLDL clearance / 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 / reelin-mediated signaling pathway ...reelin receptor activity / glycoprotein transport / VLDL clearance / 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 / reelin-mediated signaling pathway / togavirin / very-low-density lipoprotein particle / cargo receptor activity / T=4 icosahedral viral capsid / positive regulation of dendrite development / dendrite morphogenesis / lipid transport / regulation of synapse assembly / apolipoprotein binding / clathrin-coated pit / receptor-mediated endocytosis / cholesterol metabolic process / 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 / symbiont entry into host cell / lysosomal membrane / serine-type endopeptidase activity / fusion of virus membrane with host endosome membrane / calcium ion binding / virion attachment to host cell / host cell nucleus / host cell plasma membrane / virion membrane / glutamatergic synapse / structural molecule activity / signal transduction / proteolysis / RNA binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.95 Å | |||||||||
![]() | Raju S / Diamond MS / Fremont DH | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for plasticity in receptor engagement by an encephalitic alphavirus. Authors: Saravanan Raju / Sathvik Palakurty / Alan Sariol / Ngan Wagoner / Lucas J Adams / Sean Hui / William B Klimstra / Daved H Fremont / Michael S Diamond / ![]() Abstract: The structural basis for shifts in receptor usage remains poorly understood despite the implications for virus adaptation and emergence. Western equine encephalitis virus (WEEV) strains exhibit ...The structural basis for shifts in receptor usage remains poorly understood despite the implications for virus adaptation and emergence. Western equine encephalitis virus (WEEV) strains exhibit different patterns of engagement for two of their entry receptors: very-low-density lipoprotein receptor (VLDLR) and protocadherin 10 (PCDH10). Using structural and functional studies, we show that while all WEEV strains have a lipoprotein class A (LA) domain binding site near the E1 fusion loop, VLDLR engagement requires a second binding site in E2 that can vary with single nucleotide substitutions. We also resolve a structure of PCDH10 bound to WEEV, which reveals interactions near the E1 fusion loop with residues that also mediate LA domain binding. Evolutionary analysis enabled the generation of a PCDH10 decoy that protects in vivo against all WEEV strains tested. Our experiments demonstrate how viruses can engage multiple receptors using shared determinants, which likely impacts cellular tropism and virulence. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 97.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.2 KB 21.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 9.9 KB | Display | ![]() |
Images | ![]() | 38.5 KB | ||
Filedesc metadata | ![]() | 6.7 KB | ||
Others | ![]() ![]() | 95.5 MB 95.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9e9zMC ![]() 9e96C ![]() 9e9yC ![]() 9eauC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.081 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_47822_half_map_1.map | ||||||||||||
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-Half map: #2
File | emd_47822_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Western equine encephalitis virus
Entire | Name: ![]() |
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Components |
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-Supramolecule #1: Western equine encephalitis virus
Supramolecule | Name: Western equine encephalitis virus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 Details: A chimeric virus comprised of Sindbis non-structural genes and the structural genes of WEEV Fleming was generated. Virus was grown in BHK21 cells and purified form the supernant. NCBI-ID: 11039 / Sci species name: Western equine encephalitis virus / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: Yes / Virus empty: No |
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-Macromolecule #1: Structural polyprotein
Macromolecule | Name: Structural polyprotein / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 47.314727 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: 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 DATDIVARTD IRLLKPSVKN IHVPYTQAVS GY EMWKNNS GRPLQETAPF GCKIEVEPLR ASNCAYGHIP ISIDIPDAAF VRSSESPTIL EVSCTVADCI YSADFGGSLT LQY KADREG HCPVHSHSTT AVLKEATTHV TATGSITLHF STSSPQANFI VSLCGKKTTC NAECKPPADH IIGEPHKVDQ EFQA AVSKT SWNWLLALFG GASSLIAVGL IVLVCSSMLI NTRR UniProtKB: Structural polyprotein |
-Macromolecule #2: Structural polyprotein
Macromolecule | Name: Structural polyprotein / type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 45.36884 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: PYLGFCPYCR HSAPCFSPIK IENVWDESDD GSIRIQVSAQ FGYDQAGTAD VTKFRYMSYD HDHDIKEDSV KKIAISTSGP CRRLGHKGY FLLAQCPPGD SVTVSITSGA SENSCTVEKK IRRKFVGREE YLFPPVHGKL VKCHVYDHLK ETSAGYITMH R PGPHAYKS ...String: PYLGFCPYCR HSAPCFSPIK IENVWDESDD GSIRIQVSAQ FGYDQAGTAD VTKFRYMSYD HDHDIKEDSV KKIAISTSGP CRRLGHKGY FLLAQCPPGD SVTVSITSGA SENSCTVEKK IRRKFVGREE YLFPPVHGKL VKCHVYDHLK ETSAGYITMH R PGPHAYKS YLEEASGEVY IKPPSGKNVT YECKCGDYST GIVSTRTKMN GCTKAKQCIA YKSDQTKWVY NSPDLIRHTD HS VQGKLHI PFRLTPTFCP VPLAHTPTVT KWFKGITLHL TATRPTLLTT RKLGLRADAT AEWITGTTSR NFSVGREGLE YVW GNHEPV RVWAQESAPG DPHGWPHEII IHYYHRHPVY TVIVLCGVAL AILVGIASSA ACIAKARRDC LTPYALAPNA TVPT ALAVL CCI UniProtKB: Structural polyprotein |
-Macromolecule #3: Capsid protein
Macromolecule | Name: Capsid protein / type: protein_or_peptide / ID: 3 / Number of copies: 4 / Enantiomer: LEVO / EC number: togavirin |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 16.712816 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: ESDKTFPIML NGQVNGYACV VGGRLMKPLH VEGKIDNEQL AAVKLKKASM YDLEYGDVPQ NMKSDTLQYT SDKPPGFYNW HHGAVQYEN GRFTVPRGVG GKGDSGRPIL DNRGRVVAIV LGGANEGTRT ALSVVTWNQK GVTIKDTPEG SEPW UniProtKB: Structural polyprotein |
-Macromolecule #4: Very low-density lipoprotein receptor
Macromolecule | Name: Very low-density lipoprotein receptor / type: protein_or_peptide / ID: 4 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 8.58535 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: AKCEPSQFQC TNGRCITLLW KCDGDEDCVD GSDEKNCVKK TCAESDFVCN NGQCVPSRWK CDGDPDCEDG SDESPEQC UniProtKB: Very low-density lipoprotein receptor |
-Macromolecule #5: CALCIUM ION
Macromolecule | Name: CALCIUM ION / type: ligand / ID: 5 / Number of copies: 8 / Formula: CA |
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Molecular weight | Theoretical: 40.078 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 47.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.7000000000000001 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |