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- EMDB-7913: EV-A71 strain 11316 complexed with tryptophan dendrimer MADAL_0385 -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-7913 | |||||||||
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Title | EV-A71 strain 11316 complexed with tryptophan dendrimer MADAL_0385 | |||||||||
![]() | Sharpened cryo-EM map for EV-A71 strain 11316 complexed with tryptophan dendrimer MADAL_0385 | |||||||||
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![]() | tryptophan dendrimers / EV-A71 / 5-fold vertex / Cryo-EM / VIRUS | |||||||||
Function / homology | ![]() symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 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 / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / symbiont-mediated suppression of host gene expression ...symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 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 / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / symbiont-mediated suppression of host gene expression / viral capsid / nucleoside-triphosphate phosphatase / protein complex oligomerization / monoatomic ion channel activity / RNA helicase activity / induction by virus of host autophagy / RNA-directed RNA polymerase / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / virus-mediated perturbation of host defense response / DNA-templated transcription / host cell nucleus / virion attachment to host cell / structural molecule activity / ATP hydrolysis activity / proteolysis / RNA binding / ATP binding / metal ion binding Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.59 Å | |||||||||
![]() | Sun L / Lee H | |||||||||
Funding support | 1 items
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![]() | ![]() Title: Viral engagement with host receptors blocked by a novel class of tryptophan dendrimers that targets the 5-fold-axis of the enterovirus-A71 capsid. Authors: Liang Sun / Hyunwook Lee / Hendrik Jan Thibaut / Kristina Lanko / Eva Rivero-Buceta / Carol Bator / Belen Martinez-Gualda / Kai Dallmeier / Leen Delang / Pieter Leyssen / Federico Gago / Ana ...Authors: Liang Sun / Hyunwook Lee / Hendrik Jan Thibaut / Kristina Lanko / Eva Rivero-Buceta / Carol Bator / Belen Martinez-Gualda / Kai Dallmeier / Leen Delang / Pieter Leyssen / Federico Gago / Ana San-Félix / Susan Hafenstein / Carmen Mirabelli / Johan Neyts / ![]() ![]() ![]() Abstract: Enterovirus A71 (EV-A71) is a non-polio neurotropic enterovirus with pandemic potential. There are no antiviral agents approved to prevent or treat EV-A71 infections. We here report on the molecular ...Enterovirus A71 (EV-A71) is a non-polio neurotropic enterovirus with pandemic potential. There are no antiviral agents approved to prevent or treat EV-A71 infections. We here report on the molecular mechanism by which a novel class of tryptophan dendrimers inhibits (at low nanomolar to high picomolar concentration) EV-A71 replication in vitro. A lead compound in the series (MADAL385) prevents binding and internalization of the virus but does not, unlike classical capsid binders, stabilize the particle. By means of resistance selection, reverse genetics and cryo-EM, we map the binding region of MADAL385 to the 5-fold vertex of the viral capsid and demonstrate that a single molecule binds to each vertex. By interacting with this region, MADAL385 prevents the interaction of the virus with its cellular receptors PSGL1 and heparan sulfate, thereby blocking the attachment of EV-A71 to the host cells. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 138.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 15.6 KB 15.6 KB | Display Display | ![]() |
Images | ![]() | 227.1 KB | ||
Filedesc metadata | ![]() | 6 KB | ||
Others | ![]() | 116.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6dizMC ![]() 7905C C: citing same article ( M: atomic model generated by this map |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Sharpened cryo-EM map for EV-A71 strain 11316 complexed with tryptophan dendrimer MADAL_0385 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.1 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Unsharpened cryo-EM map for EV-A71 strain 11316 complexed...
File | emd_7913_additional.map | ||||||||||||
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Annotation | Unsharpened cryo-EM map for EV-A71 strain 11316 complexed with tryptophan dendrimer MADAL_0385 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Enterovirus A71
Entire | Name: ![]() ![]() |
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Components |
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-Supramolecule #1: Enterovirus A71
Supramolecule | Name: Enterovirus A71 / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 / NCBI-ID: 39054 / Sci species name: Enterovirus A71 / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: No |
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-Macromolecule #1: VP1
Macromolecule | Name: VP1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 32.748754 KDa |
Sequence | String: GDRVADVIES SIGDSVSRAL TQALPAPTGQ NTQVSSHRLD TGEVPALQAA EIGASSNTSD ESMIETRCVL NSHSTAETTL DSFFSRAGL VGEIDLPLEG TTNPNGYANW DIDITGYAQM RRKVELFTYM RFDAEFTFVA CTPTGQVVPQ LLQYMFVPPG A PKPESRES ...String: GDRVADVIES SIGDSVSRAL TQALPAPTGQ NTQVSSHRLD TGEVPALQAA EIGASSNTSD ESMIETRCVL NSHSTAETTL DSFFSRAGL VGEIDLPLEG TTNPNGYANW DIDITGYAQM RRKVELFTYM RFDAEFTFVA CTPTGQVVPQ LLQYMFVPPG A PKPESRES LAWQTATNPS VFVKLTDPPA QVSVPFMSPA SAYQWFYDGY PTFGEHKQEK DLEYGACPNN MMGTFSVRTV GS SKSKYPL VVRIYMRMKH VRAWIPRPMR NQNYLFKANP NYAGNSIKPT GTSRSAITTL UniProtKB: Genome polyprotein |
-Macromolecule #2: VP2
Macromolecule | Name: VP2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 26.946342 KDa |
Sequence | String: SDRVAQLTIG NSTITTQEAA NIIVGYGEWP SYCSDDDATA VDKPTRPDVS VNRFYTLDTK LWEKSSKGWY WKFPDVLTET GVFGQNAQF HYLYRSGFCI HVQCNASKFH QGALLVAILP EYVIGTVAGG TGTEDSHPPY KQTQPGADGF ELQHPYVLDA G IPISQLTV ...String: SDRVAQLTIG NSTITTQEAA NIIVGYGEWP SYCSDDDATA VDKPTRPDVS VNRFYTLDTK LWEKSSKGWY WKFPDVLTET GVFGQNAQF HYLYRSGFCI HVQCNASKFH QGALLVAILP EYVIGTVAGG TGTEDSHPPY KQTQPGADGF ELQHPYVLDA G IPISQLTV CHHQRINLRT NNCATIIVPY MNTLPFDSAL NHCNFGLLVV PISPLDFDQG ATPVIPITIT LAPMCSEFAG LR QAVTQ UniProtKB: Genome polyprotein |
-Macromolecule #3: VP3
Macromolecule | Name: VP3 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 26.540332 KDa |
Sequence | String: GFPTELKPGT NQFLTTDDGV SAPILPNFHP TPCIHIPGEV RNLLELCQVE TILEVNNVPT NATSLMERLR FPVSAQAGKG ELCAVFRAD PGRDGPWQST MLGQLCGYYT QWSGSLEVTF MFTGSFMATG KMLIAYTPPG GPLPKDRATA MLGTHVIWDF G LQSSVTLV ...String: GFPTELKPGT NQFLTTDDGV SAPILPNFHP TPCIHIPGEV RNLLELCQVE TILEVNNVPT NATSLMERLR FPVSAQAGKG ELCAVFRAD PGRDGPWQST MLGQLCGYYT QWSGSLEVTF MFTGSFMATG KMLIAYTPPG GPLPKDRATA MLGTHVIWDF G LQSSVTLV IPWISNTHYR AHARDGVFDY YTTGLVSIWY QTNYVVPIGA PNTAYIIALA AAQKNFTMKL CKDTSHILQT AS IQ UniProtKB: Genome polyprotein |
-Macromolecule #4: VP4
Macromolecule | Name: VP4 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 8.36707 KDa |
Sequence | String: MGSQVSTQRS GSHENSNSAT EGSTINYTTI NYYKDSYAAT AGKQSLKQDP DKFANPVKDI FTEMAAPLKS PSAEACGY UniProtKB: Genome polyprotein |
-Macromolecule #5: SPHINGOSINE
Macromolecule | Name: SPHINGOSINE / type: ligand / ID: 5 / Number of copies: 1 / Formula: SPH |
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Molecular weight | Theoretical: 299.492 Da |
Chemical component information | ![]() ChemComp-SPH: |
-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: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 44.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: OTHER |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.59 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 11813 |
Initial angle assignment | Type: RANDOM ASSIGNMENT |
Final angle assignment | Type: PROJECTION MATCHING |