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Yorodumi- PDB-3j6u: Cryo-EM structure of Dengue virus serotype 3 in complex with huma... -
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-Basic information
Entry | Database: PDB / ID: 3j6u | ||||||
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Title | Cryo-EM structure of Dengue virus serotype 3 in complex with human antibody 5J7 Fab | ||||||
Components |
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Keywords | VIRUS/IMMUNE SYSTEM / Dengue virus / human antibody / neutralization / 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 / host cell mitochondrion / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / ribonucleoside triphosphate phosphatase activity / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / channel activity ...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 cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / ribonucleoside triphosphate phosphatase activity / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / channel activity / monoatomic ion transmembrane transport / 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 / host cell perinuclear region of cytoplasm / protein dimerization activity / host cell endoplasmic reticulum membrane / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / induction by virus of host autophagy / RNA-directed RNA polymerase / viral RNA genome replication / serine-type endopeptidase activity / RNA-dependent RNA polymerase activity / virus-mediated perturbation of host defense response / 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 | ||||||
Biological species | Dengue virus 3 Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 9 Å | ||||||
Authors | Fibriansah, G. / Tan, J.L. / Smith, S.A. / de Alwis, R. / Ng, T.-S. / Kostyuchenko, V.A. / Kukkaro, P. / de Silva, A.M. / Crowe Jr., J.E. / Lok, S.-M. | ||||||
Citation | Journal: Nat Commun / Year: 2015 Title: A highly potent human antibody neutralizes dengue virus serotype 3 by binding across three surface proteins. Authors: Guntur Fibriansah / Joanne L Tan / Scott A Smith / Ruklanthi de Alwis / Thiam-Seng Ng / Victor A Kostyuchenko / Ramesh S Jadi / Petra Kukkaro / Aravinda M de Silva / James E Crowe / Shee-Mei Lok / Abstract: Dengue virus (DENV) infects ~400 million people annually. There is no licensed vaccine or therapeutic drug. Only a small fraction of the total DENV-specific antibodies in a naturally occurring dengue ...Dengue virus (DENV) infects ~400 million people annually. There is no licensed vaccine or therapeutic drug. Only a small fraction of the total DENV-specific antibodies in a naturally occurring dengue infection consists of highly neutralizing antibodies. Here we show that the DENV-specific human monoclonal antibody 5J7 is exceptionally potent, neutralizing 50% of virus at nanogram-range antibody concentration. The 9 Å resolution cryo-electron microscopy structure of the Fab 5J7-DENV complex shows that a single Fab molecule binds across three envelope proteins and engages three functionally important domains, each from a different envelope protein. These domains are critical for receptor binding and fusion to the endosomal membrane. The ability to bind to multiple domains allows the antibody to fully coat the virus surface with only 60 copies of Fab, that is, half the amount compared with other potent antibodies. Our study reveals a highly efficient and unusual mechanism of molecular recognition by an antibody. | ||||||
History |
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-Structure visualization
Movie |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 3j6u.cif.gz | 70.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb3j6u.ent.gz | 40.5 KB | Display | PDB format |
PDBx/mmJSON format | 3j6u.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 3j6u_validation.pdf.gz | 968.9 KB | Display | wwPDB validaton report |
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Full document | 3j6u_full_validation.pdf.gz | 968.4 KB | Display | |
Data in XML | 3j6u_validation.xml.gz | 30.3 KB | Display | |
Data in CIF | 3j6u_validation.cif.gz | 45 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/j6/3j6u ftp://data.pdbj.org/pub/pdb/validation_reports/j6/3j6u | HTTPS FTP |
-Related structure data
Related structure data | 5935MC 5933C 5934C 3j6sC 3j6tC C: citing same article (ref.) M: map data used to model this data |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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Symmetry | Point symmetry: (Schoenflies symbol: I (icosahedral)) |
-Components
#1: Protein | Mass: 53682.484 Da / Num. of mol.: 3 / Fragment: UNP residues 281-773 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Dengue virus 3 / Strain: D3/SG/05K863DK1/2005 / Cell line (production host): C6/36 / Production host: Aedes albopictus (Asian tiger mosquito) / References: UniProt: Q6DLV0, UniProt: A9LID6*PLUS #2: Protein | Mass: 8347.836 Da / Num. of mol.: 3 / Fragment: UNP residues 206-280 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Dengue virus 3 / Strain: D3/SG/05K863DK1/2005 / Cell line (production host): C6/36 / Production host: Aedes albopictus (Asian tiger mosquito) / References: UniProt: Q6DLV0, UniProt: A9LID6*PLUS #3: Antibody | | Mass: 14751.498 Da / Num. of mol.: 1 / Fragment: variable region Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Strain: HMMA2.5 myeloma / Cell: hybridoma #4: Antibody | | Mass: 12976.458 Da / Num. of mol.: 1 / Fragment: variable region Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Strain: HMMA2.5 myeloma / Cell: hybridoma |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component |
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Details of virus | Empty: NO / Enveloped: YES / Host category: VERTEBRATES / Isolate: STRAIN / Type: VIRION | ||||||||||||||||
Natural host | Organism: Homo sapiens | ||||||||||||||||
Buffer solution | Name: 10 mM Tris-HCl, pH 8.0, 120 mM NaCl, 1 mM EDTA / pH: 8 / Details: 10 mM Tris-HCl, pH 8.0, 120 mM NaCl, 1 mM EDTA | ||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||
Specimen support | Details: ultra-thin carbon-coated lacey carbon grid | ||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % Details: Blotted with filter paper for 2 seconds prior to snap freezing in liquid ethane (FEI VITROBOT MARK IV) Method: blotted with filter paper for 2s prior to snap freezing |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS / Date: Mar 23, 2012 |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 59000 X / Nominal defocus max: 4200 nm / Nominal defocus min: 400 nm / Cs: 2.7 mm / Camera length: 0 mm |
Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature: 100 K / Tilt angle max: 0 ° / Tilt angle min: 0 ° |
Image recording | Electron dose: 18 e/Å2 / Film or detector model: FEI FALCON I (4k x 4k) |
Image scans | Num. digital images: 254 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Relative weight: 1 |
-Processing
EM software |
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CTF correction | Details: each particle | |||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: I (icosahedral) | |||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Method: Cross-common lines / Resolution: 9 Å / Resolution method: FSC 0.5 CUT-OFF / Num. of particles: 970 / Nominal pixel size: 1.37 Å / Actual pixel size: 1.37 Å Details: (Single particle details: Particles were manually selected.) (Single particle--Applied symmetry: I) Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: real space correlation Details: REFINEMENT PROTOCOL--flexible DETAILS--Initially fitted in Chimera, model rebuilt in Coot, refined in NAMD/MDFF | |||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | 3D fitting-ID: 1 / Source name: PDB / Type: experimental model
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Refinement step | Cycle: LAST
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