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- EMDB-9573: Cryo-EM structure of zika virus complexed with Fab C10 at pH 6.5 -

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Basic information

Entry
Database: EMDB / ID: EMD-9573
TitleCryo-EM structure of zika virus complexed with Fab C10 at pH 6.5
Map data
Sample
  • Complex: Zika virus complexed with C10 Fab at pH 6.5
    • Complex: Zika virus
      • Protein or peptide: structural protein E
      • Protein or peptide: strutural protein M
    • Complex: Fab C10
      • Protein or peptide: IgG C10 heavy chain
      • Protein or peptide: IgG C10 light chain
KeywordsAntibody / VIRUS-IMMUNE SYSTEM complex
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 / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / 4 iron, 4 sulfur cluster binding / clathrin-dependent endocytosis of virus by host cell ...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 / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / 4 iron, 4 sulfur cluster binding / clathrin-dependent endocytosis of virus by host cell / mRNA (guanine-N7)-methyltransferase / molecular adaptor activity / methyltransferase cap1 / 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 type I interferon-mediated signaling pathway / 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 / viral envelope / lipid binding / 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 capsid protein C superfamily / Flavivirus non-structural protein NS2B / 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 capsid protein C superfamily / Flavivirus non-structural protein NS2B / 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
Biological speciesZika virus / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.4 Å
AuthorsZhang S / Kostyuchenko V
Funding support Singapore, United States, 3 items
OrganizationGrant numberCountry
Ministry of Education Tier 3 grantMOE2012-T3-1-008 Singapore
National Research Foundation Investigatorship awardNRFI2016-01 Singapore
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI100625 and AI 107731 United States
CitationJournal: Nat Commun / Year: 2016
Title: Neutralization mechanism of a highly potent antibody against Zika virus.
Authors: Shuijun Zhang / Victor A Kostyuchenko / Thiam-Seng Ng / Xin-Ni Lim / Justin S G Ooi / Sebastian Lambert / Ter Yong Tan / Douglas G Widman / Jian Shi / Ralph S Baric / Shee-Mei Lok /
Abstract: The rapid spread of Zika virus (ZIKV), which causes microcephaly and Guillain-Barré syndrome, signals an urgency to identify therapeutics. Recent efforts to rescreen dengue virus human antibodies ...The rapid spread of Zika virus (ZIKV), which causes microcephaly and Guillain-Barré syndrome, signals an urgency to identify therapeutics. Recent efforts to rescreen dengue virus human antibodies for ZIKV cross-neutralization activity showed antibody C10 as one of the most potent. To investigate the ability of the antibody to block fusion, we determined the cryoEM structures of the C10-ZIKV complex at pH levels mimicking the extracellular (pH8.0), early (pH6.5) and late endosomal (pH5.0) environments. The 4.0 Å resolution pH8.0 complex structure shows that the antibody binds to E proteins residues at the intra-dimer interface, and the virus quaternary structure-dependent inter-dimer and inter-raft interfaces. At pH6.5, antibody C10 locks all virus surface E proteins, and at pH5.0, it locks the E protein raft structure, suggesting that it prevents the structural rearrangement of the E proteins during the fusion event-a vital step for infection. This suggests antibody C10 could be a good therapeutic candidate.
History
DepositionOct 19, 2016-
Header (metadata) releaseNov 2, 2016-
Map releaseNov 30, 2016-
UpdateMay 29, 2024-
Current statusMay 29, 2024Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 2
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 2
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  • Surface view with fitted model
  • Atomic models: PDB-5h30
  • Surface level: 2
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-5h30
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_9573.png

Downloads & links

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Map

FileDownload / File: emd_9573.map.gz / Format: CCP4 / Size: 729 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.1 Å/pix.
x 576 pix.
= 633.6 Å		1.1 Å/pix.
x 576 pix.
= 633.6 Å		1.1 Å/pix.
x 576 pix.
= 633.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.1 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 2.0 / Movie #1: 2
Minimum - Maximum-6.1860094 - 11.288107
Average (Standard dev.)-0.000000001022033 (±1.0)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin-288-288-288
Dimensions576576576
Spacing576576576
CellA=B=C: 633.60004 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.11.11.1
M x/y/z576576576
origin x/y/z0.0000.0000.000
length x/y/z633.600633.600633.600
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ256256256
MAP C/R/S123
start NC/NR/NS-288-288-288
NC/NR/NS576576576
D min/max/mean-6.18611.288-0.000

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Supplemental data

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Sample components

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Entire : Zika virus complexed with C10 Fab at pH 6.5

EntireName: Zika virus complexed with C10 Fab at pH 6.5
Components
  • Complex: Zika virus complexed with C10 Fab at pH 6.5
    • Complex: Zika virus
      • Protein or peptide: structural protein E
      • Protein or peptide: strutural protein M
    • Complex: Fab C10
      • Protein or peptide: IgG C10 heavy chain
      • Protein or peptide: IgG C10 light chain

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Supramolecule #1: Zika virus complexed with C10 Fab at pH 6.5

SupramoleculeName: Zika virus complexed with C10 Fab at pH 6.5 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all

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Supramolecule #2: Zika virus

SupramoleculeName: Zika virus / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#2
Source (natural)Organism: Zika virus

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Supramolecule #3: Fab C10

SupramoleculeName: Fab C10 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #3-#4

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Macromolecule #1: structural protein E

MacromoleculeName: structural protein E / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Zika virus / Strain: Mr 766
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: strutural protein M

MacromoleculeName: strutural protein M / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Zika virus / Strain: Mr 766
Molecular weightTheoretical: 8.496883 KDa
SequenceString:
AVTLPSHSTR KLQTRSQTWL ESREYTKHLI RVENWIFRNP GFALAAAAIA WLLGSSTSQK VIYLVMILLI APAYS

UniProtKB: Genome polyprotein

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Macromolecule #3: IgG C10 heavy chain

MacromoleculeName: IgG C10 heavy chain / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.487058 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLVESGAE VKKPGASVKV SCKASGYTFT SYAMHWVRQA PGQRLEWMGW INAGNGNTKY SQKFQDRVTI TRDTSASTAY MELSSLRSE DTAIYYCARD KVDDYGDYWF PTLWYFDYWG QGTLVTVS

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Macromolecule #4: IgG C10 light chain

MacromoleculeName: IgG C10 light chain / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.298362 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
SALTQPASVS GSPGQSITIS CTGTSSDVGG FNYVSWFQQH PGKAPKLMLY DVTSRPSGVS SRFSGSKSGN TASLTISGLQ AEDEADYYC SSHTSRGTWV FGGGTKLTVL

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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

Concentration1 mg/mL
BufferpH: 6.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 43.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
Final reconstructionResolution.type: BY AUTHOR / Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 45867
Initial angle assignmentType: COMMON LINE
Final angle assignmentType: COMMON LINE

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