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Yorodumi- PDB-6hjp: Structure of Influenza Hemagglutinin ectodomain (A/duck/Alberta/3... -
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-Basic information
Entry | Database: PDB / ID: 6hjp | ||||||||||||||||||||||||
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Title | Structure of Influenza Hemagglutinin ectodomain (A/duck/Alberta/35/76) in complex with FISW84 Fab Fragment | ||||||||||||||||||||||||
Components |
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Keywords | VIRAL PROTEIN / Influenza virus / Hemagglutinin / Membrane protein / Membrane fusion | ||||||||||||||||||||||||
Function / homology | Function and homology information viral budding from plasma membrane / clathrin-dependent endocytosis of virus by host cell / host cell surface receptor binding / apical plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / membrane Similarity search - Function | ||||||||||||||||||||||||
Biological species | Homo sapiens (human) Influenza A virus | ||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||||||||||||||||||||
Authors | Benton, D.J. / Rosenthal, P.B. | ||||||||||||||||||||||||
Funding support | United Kingdom, 7items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2018 Title: Influenza hemagglutinin membrane anchor. Authors: Donald J Benton / Andrea Nans / Lesley J Calder / Jack Turner / Ursula Neu / Yi Pu Lin / Esther Ketelaars / Nicole L Kallewaard / Davide Corti / Antonio Lanzavecchia / Steven J Gamblin / ...Authors: Donald J Benton / Andrea Nans / Lesley J Calder / Jack Turner / Ursula Neu / Yi Pu Lin / Esther Ketelaars / Nicole L Kallewaard / Davide Corti / Antonio Lanzavecchia / Steven J Gamblin / Peter B Rosenthal / John J Skehel / Abstract: Viruses with membranes fuse them with cellular membranes, to transfer their genomes into cells at the beginning of infection. For Influenza virus, the membrane glycoprotein involved in fusion is the ...Viruses with membranes fuse them with cellular membranes, to transfer their genomes into cells at the beginning of infection. For Influenza virus, the membrane glycoprotein involved in fusion is the hemagglutinin (HA), the 3D structure of which is known from X-ray crystallographic studies. The soluble ectodomain fragments used in these studies lacked the "membrane anchor" portion of the molecule. Since this region has a role in membrane fusion, we have determined its structure by analyzing the intact, full-length molecule in a detergent micelle, using cryo-EM. We have also compared the structures of full-length HA-detergent micelles with full-length HA-Fab complex detergent micelles, to describe an infectivity-neutralizing monoclonal Fab that binds near the ectodomain membrane anchor junction. We determine a high-resolution HA structure which compares favorably in detail with the structure of the ectodomain seen by X-ray crystallography; we detect, clearly, all five carbohydrate side chains of HA; and we find that the ectodomain is joined to the membrane anchor by flexible, eight-residue-long, linkers. The linkers extend into the detergent micelle to join a central triple-helical structure that is a major component of the membrane anchor. | ||||||||||||||||||||||||
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 | 6hjp.cif.gz | 547.4 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6hjp.ent.gz | 451.8 KB | Display | PDB format |
PDBx/mmJSON format | 6hjp.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6hjp_validation.pdf.gz | 2.4 MB | Display | wwPDB validaton report |
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Full document | 6hjp_full_validation.pdf.gz | 2.4 MB | Display | |
Data in XML | 6hjp_validation.xml.gz | 92.2 KB | Display | |
Data in CIF | 6hjp_validation.cif.gz | 139 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/hj/6hjp ftp://data.pdbj.org/pub/pdb/validation_reports/hj/6hjp | HTTPS FTP |
-Related structure data
Related structure data | 0235MC 0234C 0236C 0237C 6hjnC 6hjqC 6hjrC 6hkgC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 2 types, 6 molecules ACEBDF
#1: Protein | Mass: 35684.852 Da / Num. of mol.: 3 / Source method: isolated from a natural source Source: (natural) Influenza A virus (strain A/Duck/Alberta/35/1976 H1N1) References: UniProt: Q9WCE0, UniProt: P26562*PLUS #2: Protein | Mass: 19953.924 Da / Num. of mol.: 3 / Source method: isolated from a natural source Source: (natural) Influenza A virus (strain A/Duck/Alberta/35/1976 H1N1) References: UniProt: P26562 |
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-Antibody , 2 types, 6 molecules GIKHJL
#3: Antibody | Mass: 22925.875 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): EXPI293 cells / Production host: Homo sapiens (human) #4: Antibody | Mass: 23277.766 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): EXPI293 cells / Production host: Homo sapiens (human) |
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-Sugars , 4 types, 15 molecules
#5: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #6: Polysaccharide | Source method: isolated from a genetically manipulated source #7: Polysaccharide | Source method: isolated from a genetically manipulated source #8: Polysaccharide | Source method: isolated from a genetically manipulated source |
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-Non-polymers , 1 types, 3 molecules
#9: Chemical |
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-Details
Has protein modification | Y |
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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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Molecular weight | Value: 0.3 MDa / Experimental value: NO | ||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: Homo sapiens (human) | ||||||||||||||||||||||||||||
Buffer solution | pH: 8 | ||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 1.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / 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: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 43 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
EM imaging optics | Energyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV |
Image scans | Movie frames/image: 20 |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Symmetry | Point symmetry: C3 (3 fold cyclic) |
3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 291146 / Symmetry type: POINT |