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- PDB-5u4w: Cryo-EM Structure of Immature Zika Virus -

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Basic information

Entry
Database: PDB / ID: 5u4w
TitleCryo-EM Structure of Immature Zika Virus
Components
  • E protein
  • M protein
  • Protein E
  • pr domain
KeywordsVIRUS / immature Zika virus / viral protein
Function / homology
Function and homology information


: / flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / host cell mitochondrion / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / negative regulation of innate immune response / ribonucleoside triphosphate phosphatase activity / viral capsid ...: / flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / host cell mitochondrion / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / negative regulation of innate immune response / ribonucleoside triphosphate phosphatase activity / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / 4 iron, 4 sulfur cluster binding / channel activity / monoatomic ion transmembrane transport / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / molecular adaptor activity / clathrin-dependent endocytosis of virus by host cell / host cell surface / methyltransferase cap1 activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / protein dimerization activity / host cell perinuclear region of cytoplasm / host cell endoplasmic reticulum membrane / RNA helicase / symbiont-mediated suppression of host innate immune response / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont entry into host cell / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / serine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / fusion of virus membrane with host endosome membrane / lipid binding / viral envelope / centrosome / GTP binding / virion attachment to host cell / host cell nucleus / virion membrane / structural molecule activity / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / metal ion binding / membrane
Similarity search - Function
Flavivirus non-structural protein NS2B / Flavivirus capsid protein C superfamily / Genome polyprotein, Flavivirus / : / Flavivirus non-structural protein NS4A / Flavivirus non-structural protein NS2B / Flavivirus non-structural protein NS4B / mRNA cap 0/1 methyltransferase / Flavivirus non-structural protein NS4B / Flavivirus non-structural protein NS4A ...Flavivirus non-structural protein NS2B / Flavivirus capsid protein C superfamily / Genome polyprotein, Flavivirus / : / Flavivirus non-structural protein NS4A / Flavivirus non-structural protein NS2B / Flavivirus non-structural protein NS4B / mRNA cap 0/1 methyltransferase / Flavivirus non-structural protein NS4B / Flavivirus non-structural protein NS4A / Flavivirus NS2B domain profile. / mRNA cap 0 and cap 1 methyltransferase (EC 2.1.1.56 and EC 2.1.1.57) domain profile. / Flavivirus non-structural protein NS2A / Flavivirus non-structural protein NS2A / Flavivirus NS3, petidase S7 / Peptidase S7, Flavivirus NS3 serine protease / Flavivirus NS3 protease (NS3pro) domain profile. / RNA-directed RNA polymerase, thumb domain, Flavivirus / Flavivirus RNA-directed RNA polymerase, thumb domain / RNA-directed RNA polymerase, flavivirus / Flavivirus RNA-directed RNA polymerase, fingers and palm domains / Flavivirus capsid protein C / Flavivirus capsid protein C / Flavivirus non-structural Protein NS1 / Flavivirus non-structural protein NS1 / Envelope glycoprotein M, flavivirus / Envelope glycoprotein M superfamily, flavivirus / Flavivirus envelope glycoprotein M / Flavivirus polyprotein propeptide / Flavivirus polyprotein propeptide superfamily / Flavivirus polyprotein propeptide / Flavivirus envelope glycoprotein E, stem/anchor domain / : / Flavivirus NS3 helicase, C-terminal helical domain / Flavivirus envelope glycoprotein E, Stem/Anchor domain / Flavivirus envelope glycoprotein E, Stem/Anchor domain superfamily / Flavivirus glycoprotein E, immunoglobulin-like domain / Flavivirus glycoprotein, immunoglobulin-like domain / Flavivirus glycoprotein central and dimerisation domain / Flavivirus glycoprotein, central and dimerisation domains / Flaviviral glycoprotein E, central domain, subdomain 1 / Flaviviral glycoprotein E, central domain, subdomain 2 / Ribosomal RNA methyltransferase, FtsJ domain / FtsJ-like methyltransferase / Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily / Flavivirus glycoprotein, central and dimerisation domain superfamily / Flaviviral glycoprotein E, dimerisation domain / DEAD box, Flavivirus / Flavivirus DEAD domain / helicase superfamily c-terminal domain / Immunoglobulin E-set / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
beta-D-mannopyranose / Genome polyprotein / Genome polyprotein / Genome polyprotein / Genome polyprotein / Genome polyprotein
Similarity search - Component
Biological speciesZika virus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 9.1 Å
AuthorsMangala Prasad, V. / Miller, A.S. / Klose, T. / Sirohi, D. / Buda, G. / Jiang, W. / Kuhn, R.J. / Rossmann, M.G.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)RO1 AI076331 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)RO1 AI073755 United States
CitationJournal: Nat Struct Mol Biol / Year: 2017
Title: Structure of the immature Zika virus at 9 Å resolution.
Authors: Vidya Mangala Prasad / Andrew S Miller / Thomas Klose / Devika Sirohi / Geeta Buda / Wen Jiang / Richard J Kuhn / Michael G Rossmann /
Abstract: The current Zika virus (ZIKV) epidemic is characterized by severe pathogenicity in both children and adults. Sequence changes in ZIKV since its first isolation are apparent when pre-epidemic strains ...The current Zika virus (ZIKV) epidemic is characterized by severe pathogenicity in both children and adults. Sequence changes in ZIKV since its first isolation are apparent when pre-epidemic strains are compared with those causing the current epidemic. However, the residues that are responsible for ZIKV pathogenicity are largely unknown. Here we report the cryo-electron microscopy (cryo-EM) structure of the immature ZIKV at 9-Å resolution. The cryo-EM map was fitted with the crystal structures of the precursor membrane and envelope glycoproteins and was shown to be similar to the structures of other known immature flaviviruses. However, the immature ZIKV contains a partially ordered capsid protein shell that is less prominent in other immature flaviviruses. Furthermore, six amino acids near the interface between pr domains at the top of the spikes were found to be different between the pre-epidemic and epidemic ZIKV, possibly influencing the composition and structure of the resulting viruses.
History
DepositionDec 6, 2016Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 11, 2017Provider: repository / Type: Initial release
Revision 1.1Jan 25, 2017Group: Database references
Revision 1.2Feb 22, 2017Group: Database references
Revision 1.3Sep 13, 2017Group: Author supporting evidence / Data collection / Category: em_image_scans / em_software / pdbx_audit_support
Item: _em_software.name / _pdbx_audit_support.funding_organization
Revision 1.4Dec 11, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.5Jul 29, 2020Group: Advisory / Data collection ...Advisory / Data collection / Derived calculations / Structure summary
Category: chem_comp / database_PDB_caveat ...chem_comp / database_PDB_caveat / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.6Oct 30, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature / pdbx_struct_oper_list
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _pdbx_entry_details.has_protein_modification / _pdbx_struct_oper_list.name / _pdbx_struct_oper_list.symmetry_operation / _pdbx_struct_oper_list.type

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Structure visualization

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  • Biological unit as complete icosahedral assembly
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  • Biological unit as icosahedral pentamer
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  • Biological unit as icosahedral 23 hexamer
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  • Deposited structure unit
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  • Simplified surface model + fitted atomic model
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Structure viewerMolecule:
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Assembly

Deposited unit
A: E protein
B: pr domain
C: E protein
D: pr domain
E: E protein
F: pr domain
G: Protein E
H: M protein
I: Protein E
J: M protein
K: Protein E
L: M protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)204,55330
Polymers200,81812
Non-polymers3,73518
Water00
1
A: E protein
B: pr domain
C: E protein
D: pr domain
E: E protein
F: pr domain
G: Protein E
H: M protein
I: Protein E
J: M protein
K: Protein E
L: M protein
hetero molecules
x 60


Theoretical massNumber of molelcules
Total (without water)12,273,1881800
Polymers12,049,062720
Non-polymers224,1261080
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation59
2


  • Idetical with deposited unit
  • icosahedral asymmetric unit
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
3
A: E protein
B: pr domain
C: E protein
D: pr domain
E: E protein
F: pr domain
G: Protein E
H: M protein
I: Protein E
J: M protein
K: Protein E
L: M protein
hetero molecules
x 5


  • icosahedral pentamer
  • 1.02 MDa, 60 polymers
Theoretical massNumber of molelcules
Total (without water)1,022,766150
Polymers1,004,08960
Non-polymers18,67790
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation4
4
A: E protein
B: pr domain
C: E protein
D: pr domain
E: E protein
F: pr domain
G: Protein E
H: M protein
I: Protein E
J: M protein
K: Protein E
L: M protein
hetero molecules
x 6


  • icosahedral 23 hexamer
  • 1.23 MDa, 72 polymers
Theoretical massNumber of molelcules
Total (without water)1,227,319180
Polymers1,204,90672
Non-polymers22,413108
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation5
5


  • Idetical with deposited unit in distinct coordinate
  • icosahedral asymmetric unit, std point frame
TypeNameSymmetry operationNumber
transform to point frame1
SymmetryPoint symmetry: (Schoenflies symbol: I (icosahedral))

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Components

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Protein , 4 types, 12 molecules ACEBDFGIKHJL

#1: Protein E protein


Mass: 44801.410 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Zika virus / Production host: Drosophila melanogaster (fruit fly) / Strain (production host): S2 / References: UniProt: O11875*PLUS
#2: Protein pr domain


Mass: 9261.531 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Zika virus / Production host: Drosophila melanogaster (fruit fly) / Strain (production host): S2 / References: UniProt: A0A0B4L3F2*PLUS
#3: Protein Protein E


Mass: 6892.228 Da / Num. of mol.: 3 / Fragment: transmembrane domain (UNP residues 726-791) / Source method: isolated from a natural source / Source: (natural) Zika virus / References: UniProt: A0A1B2ZC85, UniProt: A0A024B7W1*PLUS
#4: Protein M protein


Mass: 5984.065 Da / Num. of mol.: 3 / Fragment: transmembrane domain (UNP residues 238-290) / Source method: isolated from a natural source / Source: (natural) Zika virus / References: UniProt: A0A142I5B9, UniProt: A0A024B7W1*PLUS

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Sugars , 2 types, 18 molecules

#5: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 12
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#6: Sugar
ChemComp-BMA / beta-D-mannopyranose / beta-D-mannose / D-mannose / mannose


Type: D-saccharide, beta linking / Mass: 180.156 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Formula: C6H12O6
IdentifierTypeProgram
DManpbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
b-D-mannopyranoseCOMMON NAMEGMML 1.0
b-D-ManpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
ManSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Details

Has protein modificationY
Sequence detailsThe sample was from Zika virus, but the modeled sequences for chains A, B, C, D, E, and F are from ...The sample was from Zika virus, but the modeled sequences for chains A, B, C, D, E, and F are from Dengue virus.

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Zika virusVIRUS#1-#40MULTIPLE SOURCES
2Transmembrane domainsCOMPLEX#3-#41NATURAL
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
11Zika virus64320
22Zika virus64320
Details of virusEmpty: NO / Enveloped: YES / Isolate: STRAIN / Type: VIRION
Natural hostOrganism: Homo sapiens
Virus shellName: prM-E glycoprotein / Diameter: 600 nm / Triangulation number (T number): 1
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
1200 mMsodium chlorideNaCl1
220 mMTrisC4H11NO31
31 mMEDTA1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Ultrathin carbon
VitrificationInstrument: GATAN CRYOPLUNGE 3 / Cryogen name: ETHANE / Humidity: 80 %

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD
Image recordingAverage exposure time: 7.6 sec. / Electron dose: 4.7 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 3341

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Processing

EM software
IDNameVersionCategoryDetails
1EMAN2particle selectione2boxer.py
2Leginon3.2image acquisition
4CTFFIND3CTF correction
5jsprCTF correction
8UCSF Chimeramodel fitting
10jsprinitial Euler assignment
11jsprfinal Euler assignment
12RELIONclassification
13jspr3D reconstruction
14UCSF Chimeramodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 14351
SymmetryPoint symmetry: I (icosahedral)
3D reconstructionResolution: 9.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 9315 / Algorithm: FOURIER SPACE / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL / Target criteria: Correlation coefficient

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