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- PDB-7jyi: Subparticle Map of ZIKV MR-766 -

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Basic information

Entry
Database: PDB / ID: 7jyi
TitleSubparticle Map of ZIKV MR-766
Components
  • E Glycoprotein
  • M protein
KeywordsVIRAL PROTEIN / MR-766 ZIKV two-fold subparticle
Function / homology
Function and homology information


symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / flavivirin / 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 / ribonucleoside triphosphate phosphatase activity / viral capsid / nucleoside-triphosphate phosphatase / double-stranded RNA binding / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / symbiont-mediated suppression of host toll-like receptor signaling pathway ...symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / flavivirin / 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 / ribonucleoside triphosphate phosphatase activity / viral capsid / nucleoside-triphosphate phosphatase / double-stranded RNA binding / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / symbiont-mediated suppression of host toll-like receptor signaling pathway / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / clathrin-dependent endocytosis of virus by host cell / mRNA (nucleoside-2'-O-)-methyltransferase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / membrane => GO:0016020 / host cell endoplasmic reticulum membrane / host cell perinuclear region of cytoplasm / protein dimerization activity / RNA helicase / induction by virus of host autophagy / RNA-directed RNA polymerase / viral RNA genome replication / RNA-dependent RNA polymerase activity / serine-type endopeptidase activity / fusion of virus membrane with host endosome membrane / viral envelope / lipid binding / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / host cell nucleus / structural molecule activity / virion attachment to host cell / GTP binding / virion membrane / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / membrane / metal ion binding
Similarity search - Function
: / : / Flavivirus envelope glycoprotein E, stem/anchor domain / RNA-directed RNA polymerase, thumb domain, Flavivirus / Flavivirus RNA-directed RNA polymerase, thumb domain / Flavivirus capsid protein C superfamily / Flavivirus non-structural protein NS2B / Flavivirus NS3 helicase, C-terminal helical domain / Genome polyprotein, Flavivirus / Flavivirus non-structural protein NS4A ...: / : / Flavivirus envelope glycoprotein E, stem/anchor domain / RNA-directed RNA polymerase, thumb domain, Flavivirus / Flavivirus RNA-directed RNA polymerase, thumb domain / Flavivirus capsid protein C superfamily / Flavivirus non-structural protein NS2B / Flavivirus NS3 helicase, C-terminal helical domain / Genome polyprotein, Flavivirus / Flavivirus non-structural protein NS4A / Flavivirus non-structural protein NS2B / Flavivirus capsid protein C / Flavivirus non-structural protein NS4B / mRNA cap 0/1 methyltransferase / Flavivirus capsid protein C / 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. / Envelope glycoprotein M, flavivirus / Flavivirus envelope glycoprotein M / RNA-directed RNA polymerase, flavivirus / Flavivirus RNA-directed RNA polymerase, fingers and palm domains / Flavivirus non-structural Protein NS1 / Flavivirus non-structural protein NS1 / Envelope glycoprotein M superfamily, flavivirus / Flavivirus polyprotein propeptide / Flavivirus polyprotein propeptide superfamily / Flavivirus polyprotein propeptide / Flaviviral glycoprotein E, central domain, subdomain 1 / Flaviviral glycoprotein E, central domain, subdomain 2 / Flavivirus envelope glycoprotein E, Stem/Anchor domain / Flavivirus glycoprotein E, immunoglobulin-like domain / Flavivirus envelope glycoprotein E, Stem/Anchor domain superfamily / Flavivirus glycoprotein, immunoglobulin-like domain / Flavivirus glycoprotein central and dimerisation domain / Flavivirus glycoprotein, central and dimerisation domains / 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
Core protein / Core protein / Genome polyprotein
Similarity search - Component
Biological speciesZika virus
MethodELECTRON MICROSCOPY / single particle reconstruction / negative staining / cryo EM / Resolution: 3.4 Å
AuthorsJose, J. / Hafenstein, S.
CitationJournal: Nat Commun / Year: 2020
Title: Identification of a pocket factor that is critical to Zika virus assembly.
Authors: Nadia M DiNunno / Daniel J Goetschius / Anoop Narayanan / Sydney A Majowicz / Ibrahim Moustafa / Carol M Bator / Susan L Hafenstein / Joyce Jose /
Abstract: Zika virus (ZIKV) is an emerging mosquito borne flavivirus and a major public health concern causing severe disease. Due to the presence of a lipid membrane and structural heterogeneity, attaining an ...Zika virus (ZIKV) is an emerging mosquito borne flavivirus and a major public health concern causing severe disease. Due to the presence of a lipid membrane and structural heterogeneity, attaining an atomic resolution structure is challenging, but important to understand virus assembly and life cycle mechanisms that offer distinct targets for therapeutic intervention. We here use subvolume refinement to achieve a 3.4 Å resolution structure and identify two distinct lipid moieties. The first arises from the inner leaflet and is coordinated by hydrophobic residues of the M and E transmembrane helices that form a binding pocket not previously characterized. The second lipid arises from the outer leaflet coordinate between two E protein helices. Structure-based mutagenesis identifies critical hydrophobic interactions and their effect on the virus life cycle. Results show that lipids play an essential role in the ZIKV assembly pathway revealing a potential target of lipid based antiviral drug development.
History
DepositionAug 30, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 16, 2020Provider: repository / Type: Initial release
Revision 1.1Oct 14, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

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Assembly

Deposited unit
C: E Glycoprotein
D: M protein
E: E Glycoprotein
F: M protein


Theoretical massNumber of molelcules
Total (without water)125,6624
Polymers125,6624
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area16580 Å2
ΔGint-114 kcal/mol
Surface area47050 Å2

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Components

#1: Protein E Glycoprotein


Mass: 54275.836 Da / Num. of mol.: 2 / Fragment: UNP residues 291-791 / Source method: isolated from a natural source / Source: (natural) Zika virus / Strain: MR-766 / References: UniProt: A0A140D2T1, UniProt: Q32ZE1*PLUS
#2: Protein M protein


Mass: 8555.002 Da / Num. of mol.: 2 / Fragment: UNP residues 216-290 / Source method: isolated from a natural source / Source: (natural) Zika virus / Strain: MR-766 / References: UniProt: C8XPB1, UniProt: Q32ZE1*PLUS

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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

ComponentName: Zika virus / Type: VIRUS / Details: propagated in HeLa cells / Entity ID: all / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Zika virus / Strain: MR-766
Details of virusEmpty: NO / Enveloped: NO / Isolate: STRAIN / Type: VIRION
Natural hostOrganism: mosquito
Virus shellName: ZikaZika fever / Diameter: 50 nm / Triangulation number (T number): 3
Buffer solutionpH: 7
SpecimenConc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: YES / Vitrification applied: YES
EM stainingType: NEGATIVE / Material: PTA
VitrificationCryogen name: ETHANE

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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: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 41.7 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.17.1-3660_3260: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 9000 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0088999
ELECTRON MICROSCOPYf_angle_d0.71312196
ELECTRON MICROSCOPYf_dihedral_angle_d9.4921219
ELECTRON MICROSCOPYf_chiral_restr0.0461388
ELECTRON MICROSCOPYf_plane_restr0.0041537

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