- EMDB-23045: Chimeric flavivirus between Binjari virus and Murray Valley encep... -
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Basic information
Entry
Database: EMDB / ID: EMD-23045
Title
Chimeric flavivirus between Binjari virus and Murray Valley encephalitis virus
Map data
Local resolution filtered map
Sample
Virus: Binjari virus
Complex: M and E from Murray Valley encephalitis virus strain MVE-1-51 form a complex that assembles into anti-parallel dimers, (M-E)2, in the T=3 icosahedral particle.
Protein or peptide: Envelope protein E
Protein or peptide: Matrix protein M
Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Function / homology
Function and homology information
: / 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 / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / clathrin-dependent endocytosis of virus by host cell ...: / 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 / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / 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 / membrane => GO:0016020 / RNA helicase activity / host cell perinuclear region of cytoplasm / host cell endoplasmic reticulum membrane / protein dimerization activity / symbiont-mediated suppression of host innate immune response / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / RNA helicase / induction by virus of host autophagy / serine-type endopeptidase activity / RNA-directed RNA polymerase / viral RNA genome replication / virus-mediated perturbation of host defense response / RNA-dependent RNA polymerase activity / fusion of virus membrane with host endosome membrane / viral envelope / host cell nucleus / virion attachment to host cell / structural molecule activity / virion membrane / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / membrane / metal ion binding Similarity search - Function
: / Flavivirus capsid protein C superfamily / RNA-directed RNA polymerase, thumb domain, Flavivirus / Flavivirus RNA-directed RNA polymerase, thumb domain / Flavivirus non-structural protein NS2B / Flavivirus envelope glycoprotein E, stem/anchor domain / : / Flavivirus NS3 helicase, C-terminal helical domain / Genome polyprotein, Flavivirus / Flavivirus non-structural protein NS4A ...: / Flavivirus capsid protein C superfamily / RNA-directed RNA polymerase, thumb domain, Flavivirus / Flavivirus RNA-directed RNA polymerase, thumb domain / Flavivirus non-structural protein NS2B / Flavivirus envelope glycoprotein E, stem/anchor domain / : / 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. / 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, flavivirus / Flavivirus envelope glycoprotein M / 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 / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase Similarity search - Domain/homology
National Health and Medical Research Council (NHMRC, Australia)
APP1164216
Australia
Citation
Journal: Nat Commun / Year: 2021 Title: A unified route for flavivirus structures uncovers essential pocket factors conserved across pathogenic viruses. Authors: Joshua M Hardy / Natalee D Newton / Naphak Modhiran / Connor A P Scott / Hariprasad Venugopal / Laura J Vet / Paul R Young / Roy A Hall / Jody Hobson-Peters / Fasséli Coulibaly / Daniel Watterson / Abstract: The epidemic emergence of relatively rare and geographically isolated flaviviruses adds to the ongoing disease burden of viruses such as dengue. Structural analysis is key to understand and combat ...The epidemic emergence of relatively rare and geographically isolated flaviviruses adds to the ongoing disease burden of viruses such as dengue. Structural analysis is key to understand and combat these pathogens. Here, we present a chimeric platform based on an insect-specific flavivirus for the safe and rapid structural analysis of pathogenic viruses. We use this approach to resolve the architecture of two neurotropic viruses and a structure of dengue virus at 2.5 Å, the highest resolution for an enveloped virion. These reconstructions allow improved modelling of the stem region of the envelope protein, revealing two lipid-like ligands within highly conserved pockets. We show that these sites are essential for viral growth and important for viral maturation. These findings define a hallmark of flavivirus virions and a potential target for broad-spectrum antivirals and vaccine design. We anticipate the chimeric platform to be widely applicable for investigating flavivirus biology.
History
Deposition
Nov 27, 2020
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Header (metadata) release
Dec 23, 2020
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Map release
Dec 23, 2020
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Update
Jul 14, 2021
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Current status
Jul 14, 2021
Processing site: RCSB / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
Complex: M and E from Murray Valley encephalitis virus strain MVE-1-51 form a complex that assembles into anti-parallel dimers, (M-E)2, in the T=3 icosahedral particle.
Shell ID: 1 / Diameter: 470.0 Å / T number (triangulation number): 3
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Supramolecule #2: M and E from Murray Valley encephalitis virus strain MVE-1-51 for...
Supramolecule
Name: M and E from Murray Valley encephalitis virus strain MVE-1-51 form a complex that assembles into anti-parallel dimers, (M-E)2, in the T=3 icosahedral particle. type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#2 Details: The prM and E genes of Murray Valley encephalitis virus strain MVE-1-51 were integrated into the Binjari virus genome using the Circular Polymerase Extension Reaction
Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV Details: 0 second wait time 2 second blot time -10 blot force 1 second drain time.
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Electron microscopy
Microscope
FEI TITAN KRIOS
Image recording
Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: SUPER-RESOLUTION / Digitization - Frames/image: 1-25 / Number grids imaged: 1 / Number real images: 2829 / Average exposure time: 12.5 sec. / Average electron dose: 50.0 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
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