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Yorodumi- PDB-6lnt: Cryo-EM structure of immature Zika virus in complex with human an... -
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-Basic information
Entry | Database: PDB / ID: 6lnt | ||||||||||||
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Title | Cryo-EM structure of immature Zika virus in complex with human antibody DV62.5 Fab | ||||||||||||
Components |
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Keywords | VIRUS / immature Zika virus / human antibody | ||||||||||||
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 / mRNA (guanine-N7)-methyltransferase ...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 / 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 / molecular adaptor 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 / centrosome / lipid binding / viral envelope / host cell nucleus / virion attachment to host cell / GTP binding / structural molecule activity / virion membrane / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / membrane / metal ion binding Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) Zika virus | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8 Å | ||||||||||||
Authors | Tan, T.Y. / Fibriansah, G. / Kostyuchenko, V.A. / Ng, T.S. / Lim, X.X. / Lim, X.N. / Shi, J. / Morais, M.C. / Corti, D. / Lok, S.M. | ||||||||||||
Funding support | Singapore, 3items
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Citation | Journal: Nat Commun / Year: 2020 Title: Capsid protein structure in Zika virus reveals the flavivirus assembly process. Authors: Ter Yong Tan / Guntur Fibriansah / Victor A Kostyuchenko / Thiam-Seng Ng / Xin-Xiang Lim / Shuijun Zhang / Xin-Ni Lim / Jiaqi Wang / Jian Shi / Marc C Morais / Davide Corti / Shee-Mei Lok / Abstract: Structures of flavivirus (dengue virus and Zika virus) particles are known to near-atomic resolution and show detailed structure and arrangement of their surface proteins (E and prM in immature virus ...Structures of flavivirus (dengue virus and Zika virus) particles are known to near-atomic resolution and show detailed structure and arrangement of their surface proteins (E and prM in immature virus or M in mature virus). By contrast, the arrangement of the capsid proteins:RNA complex, which forms the core of the particle, is poorly understood, likely due to inherent dynamics. Here, we stabilize immature Zika virus via an antibody that binds across the E and prM proteins, resulting in a subnanometer resolution structure of capsid proteins within the virus particle. Fitting of the capsid protein into densities shows the presence of a helix previously thought to be removed via proteolysis. This structure illuminates capsid protein quaternary organization, including its orientation relative to the lipid membrane and the genomic RNA, and its interactions with the transmembrane regions of the surface proteins. Results show the capsid protein plays a central role in the flavivirus assembly process. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6lnt.cif.gz | 92.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6lnt.ent.gz | 57.8 KB | Display | PDB format |
PDBx/mmJSON format | 6lnt.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6lnt_validation.pdf.gz | 982.6 KB | Display | wwPDB validaton report |
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Full document | 6lnt_full_validation.pdf.gz | 982.2 KB | Display | |
Data in XML | 6lnt_validation.xml.gz | 35.3 KB | Display | |
Data in CIF | 6lnt_validation.cif.gz | 53.8 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ln/6lnt ftp://data.pdbj.org/pub/pdb/validation_reports/ln/6lnt | HTTPS FTP |
-Related structure data
Related structure data | 0932MC 0933C 0934C 6lnuC C: citing same article (ref.) M: map data used to model this data |
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Similar structure data |
-Links
-Assembly
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Symmetry | Point symmetry: (Schoenflies symbol: I (icosahedral)) |
-Components
#1: Protein | Mass: 54444.051 Da / Num. of mol.: 3 / Source method: isolated from a natural source Source: (natural) Zika virus (isolate ZIKV/Human/French Polynesia/10087PF/2013) Strain: isolate ZIKV/Human/French Polynesia/10087PF/2013 References: UniProt: A0A024B7W1, flavivirin, nucleoside-triphosphate phosphatase, RNA helicase, mRNA (guanine-N7)-methyltransferase, methyltransferase cap1, RNA-directed RNA polymerase #2: Protein | Mass: 18561.266 Da / Num. of mol.: 3 / Source method: isolated from a natural source Source: (natural) Zika virus (isolate ZIKV/Human/French Polynesia/10087PF/2013) Strain: isolate ZIKV/Human/French Polynesia/10087PF/2013 References: UniProt: A0A024B7W1, flavivirin, nucleoside-triphosphate phosphatase, RNA helicase, mRNA (guanine-N7)-methyltransferase, methyltransferase cap1, RNA-directed RNA polymerase #3: Antibody | Mass: 13344.860 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) Production host: Human gammaherpesvirus 4 (Epstein-Barr virus) #4: Antibody | Mass: 11376.559 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) Production host: Human gammaherpesvirus 4 (Epstein-Barr virus) #5: Protein | Mass: 12747.635 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) Zika virus (isolate ZIKV/Human/French Polynesia/10087PF/2013) Strain: isolate ZIKV/Human/French Polynesia/10087PF/2013 References: UniProt: A0A024B7W1, flavivirin, nucleoside-triphosphate phosphatase, RNA helicase, mRNA (guanine-N7)-methyltransferase, methyltransferase cap1, RNA-directed RNA polymerase |
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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
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Molecular weight | Units: MEGADALTONS / Experimental value: NO | ||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: Human herpesvirus 4 (strain B95-8) (Epstein-Barr virus (strain B95-8)) | ||||||||||||||||||||||||||||
Details of virus | Empty: NO / Enveloped: YES / Isolate: STRAIN / Type: VIRION | ||||||||||||||||||||||||||||
Natural host | Organism: Homo sapiens | ||||||||||||||||||||||||||||
Buffer solution | pH: 8 / Details: 10 mM Tris-HCl, 120 mM NaCl, 1 mM EDTA, pH 8 | ||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Immature Zika virus-Fab DV62.5 complex sample was prepared by mixing purified immature Zika virus with Fab DV62.5 at an E protein-Fab DV62.5 ratio of 1:1.1 and then the mixture was incubated ...Details: Immature Zika virus-Fab DV62.5 complex sample was prepared by mixing purified immature Zika virus with Fab DV62.5 at an E protein-Fab DV62.5 ratio of 1:1.1 and then the mixture was incubated at 37deg C for 30 min prior to sample blotting onto the grid. | ||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 47000 X / Nominal defocus max: 3500 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm |
Image recording | Electron dose: 18 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: I (icosahedral) | ||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 19295 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | 3D fitting-ID: 1 / Source name: PDB / Type: experimental model
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