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- EMDB-8139: Cryo-EM structure of thermally stable Zika virus strain H/PF/2013 -

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Basic information

Entry
Database: EMDB / ID: EMD-8139
TitleCryo-EM structure of thermally stable Zika virus strain H/PF/2013
Map dataNone
Sample
  • Virus: Zika virus
    • Protein or peptide: structural protein E
    • Protein or peptide: structural protein M
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsviral protein / flavivirus / glycoprotein / zika virus / VIRUS
Function / homology
Function and homology information


flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / 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 / 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 ...flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / 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 / 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 / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / molecular adaptor activity / clathrin-dependent endocytosis of virus by host cell / 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 / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Genome polyprotein / Genome polyprotein
Similarity search - Component
Biological speciesZika virus
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsKostyuchenko VA / Zhang S / Fibriansah G / Lok SM
Funding support Singapore, 3 items
OrganizationGrant numberCountry
Ministry of EducationMOE2012-T3-1-008 Singapore
National Research FoundationNRF-NRFI2016-01 Singapore
Ministry of HealthDuke-NUS Signature Research Program Singapore
CitationJournal: Nature / Year: 2016
Title: Structure of the thermally stable Zika virus.
Authors: Victor A Kostyuchenko / Elisa X Y Lim / Shuijun Zhang / Guntur Fibriansah / Thiam-Seng Ng / Justin S G Ooi / Jian Shi / Shee-Mei Lok /
Abstract: Zika virus (ZIKV), formerly a neglected pathogen, has recently been associated with microcephaly in fetuses, and with Guillian-Barré syndrome in adults. Here we present the 3.7 Å resolution cryo- ...Zika virus (ZIKV), formerly a neglected pathogen, has recently been associated with microcephaly in fetuses, and with Guillian-Barré syndrome in adults. Here we present the 3.7 Å resolution cryo-electron microscopy structure of ZIKV, and show that the overall architecture of the virus is similar to that of other flaviviruses. Sequence and structural comparisons of the ZIKV envelope (E) protein with other flaviviruses show that parts of the E protein closely resemble the neurovirulent West Nile and Japanese encephalitis viruses, while others are similar to dengue virus (DENV). However, the contribution of the E protein to flavivirus pathobiology is currently not understood. The virus particle was observed to be structurally stable even when incubated at 40 °C, in sharp contrast to the less thermally stable DENV. This is also reflected in the infectivity of ZIKV compared to DENV serotypes 2 and 4 (DENV2 and DENV4) at different temperatures. The cryo-electron microscopy structure shows a virus with a more compact surface. This structural stability of the virus may help it to survive in the harsh conditions of semen, saliva and urine. Antibodies or drugs that destabilize the structure may help to reduce the disease outcome or limit the spread of the virus.
History
DepositionMay 9, 2016-
Header (metadata) releaseMay 25, 2016-
Map releaseMay 25, 2016-
UpdateOct 23, 2024-
Current statusOct 23, 2024Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 3.5
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 3.5
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-5iz7
  • Surface level: 3.5
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-5iz7
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_8139.png

Downloads & links

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Map

FileDownload / File: emd_8139.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationNone
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.34 Å/pix.
x 400 pix.
= 536. Å		1.34 Å/pix.
x 400 pix.
= 536. Å		1.34 Å/pix.
x 400 pix.
= 536. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.34 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 3.5 / Movie #1: 3.5
Minimum - Maximum-6.233699 - 11.108053999999999
Average (Standard dev.)0.000000001451599 (±1.0)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin-200-200-200
Dimensions400400400
Spacing400400400
CellA=B=C: 536.0 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.341.341.34
M x/y/z400400400
origin x/y/z0.0000.0000.000
length x/y/z536.000536.000536.000
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS-200-200-200
NC/NR/NS400400400
D min/max/mean-6.23411.1080.000

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Supplemental data

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Sample components

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Entire : Zika virus

EntireName: Zika virus
Components
  • Virus: Zika virus
    • Protein or peptide: structural protein E
    • Protein or peptide: structural protein M
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: Zika virus

SupramoleculeName: Zika virus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 / NCBI-ID: 64320 / Sci species name: Zika virus / Sci species strain: H/PF/2013 / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: Yes / Virus empty: No
Host (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 10 MDa
Virus shellShell ID: 1 / Name: glycoprotein shell / Diameter: 480.0 Å / T number (triangulation number): 1

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Macromolecule #1: structural protein E

MacromoleculeName: structural protein E / type: protein_or_peptide / ID: 1 / Details: glycosylated at N154 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Zika virus / Strain: H/PF/2013
Molecular weightTheoretical: 54.444051 KDa
SequenceString: IRCIGVSNRD FVEGMSGGTW VDVVLEHGGC VTVMAQDKPT VDIELVTTTV SNMAEVRSYC YEASISDMAS DSRCPTQGEA YLDKQSDTQ YVCKRTLVDR GWGNGCGLFG KGSLVTCAKF ACSKKMTGKS IQPENLEYRI MLSVHGSQHS GMIVNDTGHE T DENRAKVE ...String:
IRCIGVSNRD FVEGMSGGTW VDVVLEHGGC VTVMAQDKPT VDIELVTTTV SNMAEVRSYC YEASISDMAS DSRCPTQGEA YLDKQSDTQ YVCKRTLVDR GWGNGCGLFG KGSLVTCAKF ACSKKMTGKS IQPENLEYRI MLSVHGSQHS GMIVNDTGHE T DENRAKVE ITPNSPRAEA TLGGFGSLGL DCEPRTGLDF SDLYYLTMNN KHWLVHKEWF HDIPLPWHAG ADTGTPHWNN KE ALVEFKD AHAKRQTVVV LGSQEGAVHT ALAGALEAEM DGAKGRLSSG HLKCRLKMDK LRLKGVSYSL CTAAFTFTKI PAE TLHGTV TVEVQYAGTD GPCKVPAQMA VDMQTLTPVG RLITANPVIT ESTENSKMML ELDPPFGDSY IVIGVGEKKI THHW HRSGS TIGKAFEATV RGAKRMAVLG DTAWDFGSVG GALNSLGKGI HQIFGAAFKS LFGGMSWFSQ ILIGTLLMWL GLNTK NGSI SLMCLALGGV LIFLSTAVSA

UniProtKB: Genome polyprotein

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Macromolecule #2: structural protein M

MacromoleculeName: structural protein M / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Zika virus / Strain: H/PF/2013
Molecular weightTheoretical: 8.496883 KDa
SequenceString:
AVTLPSHSTR KLQTRSQTWL ESREYTKHLI RVENWIFRNP GFALAAAAIA WLLGSSTSQK VIYLVMILLI APAYS

UniProtKB: Genome polyprotein

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Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / 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
Component:
ConcentrationFormulaName
10.0 mMC4H12ClNO3Tris-HCl
120.0 mMNaClSodium Chloride
1.0 mMC10H16N2O8EDTA
GridModel: Quantifoil / Material: COPPER / Mesh: 400 / Support film - #0 - Film type ID: 1 / Support film - #0 - Material: CARBON / Support film - #0 - topology: LACEY / Support film - #1 - Film type ID: 2 / Support film - #1 - Material: CARBON / Support film - #1 - topology: CONTINUOUS / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 298 K / Instrument: FEI VITROBOT MARK IV / Details: blot for 1s.
Detailspurified with PEG precipitation, sucrose cushion and potassium tartrate gradient

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON II (4k x 4k) / Detector mode: OTHER / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Digitization - Frames/image: 2-11 / Number grids imaged: 1 / Number real images: 3086 / Average exposure time: 1.8 sec. / 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 / Cs: 2.7 mm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Detailsimages collected in movie mode, 30 frames per 1.8s exposure; frames aligned with MotionCorr, frames 2-11 averaged to produce images for further processing
Particle selectionNumber selected: 11600 / Details: manually picked
Startup modelType of model: EMDB MAP
EMDB ID:

2485

Final reconstructionNumber classes used: 7180 / Applied symmetry - Point group: I (icosahedral) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: EMAN (ver. 1.9) / Number images used: 7180
Initial angle assignmentType: PROJECTION MATCHING
Projection matching processing - Number reference projections: 20
Projection matching processing - Angular sampling: 0.1 degrees
Software - Name: EMAN (ver. 1.9) / Software - details: MPSA
Final angle assignmentType: PROJECTION MATCHING
Projection matching processing - Number reference projections: 20
Projection matching processing - Angular sampling: 0.1 degrees
Software - Name: EMAN (ver. 1.9) / Software - details: MPSA
Final 3D classificationNumber classes: 1

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Atomic model buiding 1

Initial model
PDB IDChain

3j27

chain_id: A, residue_range: 1-495, source_name: PDB, initial_model_type: experimental model

3j27

chain_id: B, residue_range: 1-72, source_name: PDB, initial_model_type: experimental model
DetailsOnly icosahedral symmetry imposed. Rwork 0.323 Rtest 0.324
RefinementSpace: RECIPROCAL / Protocol: BACKBONE TRACE / Target criteria: residual
Output model

PDB-5iz7:
Cryo-EM structure of thermally stable Zika virus strain H/PF/2013

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