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- PDB-5y0a: Cryo-EM structure of zika virus complexed with Fab of ZKA190 at p... -
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Basic information
Entry | Database: PDB / ID: 5y0a | ||||||
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Title | Cryo-EM structure of zika virus complexed with Fab of ZKA190 at pH 8.0 and 37 celsius degree | ||||||
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![]() | VIRUS/IMMUNE SYSTEM / virus / antibody / complex / VIRUS-IMMUNE SYSTEM complex / icosahedral virus | ||||||
Function / homology | ![]() 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 / negative regulation of innate immune response / methyltransferase activity / double-stranded RNA binding / viral capsid / nucleoside-triphosphate phosphatase / 4 iron, 4 sulfur cluster binding ...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 / negative regulation of innate immune response / methyltransferase activity / double-stranded RNA binding / viral capsid / nucleoside-triphosphate phosphatase / 4 iron, 4 sulfur cluster binding / methylation / 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 / molecular adaptor activity / RNA helicase activity / host cell endoplasmic reticulum membrane / host cell perinuclear region of cytoplasm / protein dimerization activity / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / RNA helicase / 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 / viral envelope / lipid binding / 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 | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 22 Å | ||||||
![]() | Wang, J.Q. / Lok, S.M. | ||||||
![]() | ![]() Title: A Human Bi-specific Antibody against Zika Virus with High Therapeutic Potential. Authors: Jiaqi Wang / Marco Bardelli / Diego A Espinosa / Mattia Pedotti / Thiam-Seng Ng / Siro Bianchi / Luca Simonelli / Elisa X Y Lim / Mathilde Foglierini / Fabrizia Zatta / Stefano Jaconi / ...Authors: Jiaqi Wang / Marco Bardelli / Diego A Espinosa / Mattia Pedotti / Thiam-Seng Ng / Siro Bianchi / Luca Simonelli / Elisa X Y Lim / Mathilde Foglierini / Fabrizia Zatta / Stefano Jaconi / Martina Beltramello / Elisabetta Cameroni / Guntur Fibriansah / Jian Shi / Taylor Barca / Isabel Pagani / Alicia Rubio / Vania Broccoli / Elisa Vicenzi / Victoria Graham / Steven Pullan / Stuart Dowall / Roger Hewson / Simon Jurt / Oliver Zerbe / Karin Stettler / Antonio Lanzavecchia / Federica Sallusto / Andrea Cavalli / Eva Harris / Shee-Mei Lok / Luca Varani / Davide Corti / ![]() ![]() ![]() ![]() ![]() Abstract: Zika virus (ZIKV), a mosquito-borne flavivirus, causes devastating congenital birth defects. We isolated a human monoclonal antibody (mAb), ZKA190, that potently cross-neutralizes multi-lineage ZIKV ...Zika virus (ZIKV), a mosquito-borne flavivirus, causes devastating congenital birth defects. We isolated a human monoclonal antibody (mAb), ZKA190, that potently cross-neutralizes multi-lineage ZIKV strains. ZKA190 is highly effective in vivo in preventing morbidity and mortality of ZIKV-infected mice. NMR and cryo-electron microscopy show its binding to an exposed epitope on DIII of the E protein. ZKA190 Fab binds all 180 E protein copies, altering the virus quaternary arrangement and surface curvature. However, ZIKV escape mutants emerged in vitro and in vivo in the presence of ZKA190, as well as of other neutralizing mAbs. To counter this problem, we developed a bispecific antibody (FIT-1) comprising ZKA190 and a second mAb specific for DII of E protein. In addition to retaining high in vitro and in vivo potencies, FIT-1 robustly prevented viral escape, warranting its development as a ZIKV immunotherapy. #1: ![]() Title: Cryo-EM structure of zika virus complexed with a human monoclonal antibody Authors: Wang, J.Q. / Lok, S.M. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 70.8 KB | Display | ![]() |
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PDB format | ![]() | 43.5 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 869 KB | Display | ![]() |
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Full document | ![]() | 869.1 KB | Display | |
Data in XML | ![]() | 30.1 KB | Display | |
Data in CIF | ![]() | 46.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6793MC ![]() 6794C ![]() 5omzC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
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Symmetry | Point symmetry: (Schoenflies symbol: I (icosahedral)) |
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Components
#1: Protein | Mass: 44069.930 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Antibody | Mass: 14410.010 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #3: Antibody | Mass: 11935.241 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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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 |
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Sample preparation
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||
Source (natural) | Organism: ![]() ![]() | ||||||||||||||||||||||||
Buffer solution | pH: 8 | ||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Specimen support | Grid material: COPPER | ||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm |
Image recording | Electron dose: 20 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k) |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||
Symmetry | Point symmetry: I (icosahedral) | |||||||||||||||||||||
3D reconstruction | Resolution: 22 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 6728 / Algorithm: BACK PROJECTION / Symmetry type: POINT | |||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT |