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Open data
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Basic information
| Entry | Database: PDB / ID: 6hkg | ||||||||||||||||||||||||
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| Title | Structure of FISW84 Fab Fragment | ||||||||||||||||||||||||
Components |
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Keywords | IMMUNE SYSTEM | ||||||||||||||||||||||||
| Function / homology | Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta Function and homology information | ||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.87 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: 2018Title: 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
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6hkg.cif.gz | 330.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6hkg.ent.gz | 268.8 KB | Display | PDB format |
| PDBx/mmJSON format | 6hkg.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/hk/6hkg ftp://data.pdbj.org/pub/pdb/validation_reports/hk/6hkg | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 0234C ![]() 0235C ![]() 0236C ![]() 0237C ![]() 6hjnC ![]() 6hjpC ![]() 6hjqC ![]() 6hjrC ![]() 2vxsS ![]() 2vxvS S: Starting model for refinement C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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| 2 | ![]()
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| Unit cell |
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Components
-Antibody , 4 types, 4 molecules ABCD
| #1: Antibody | Mass: 23055.055 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): EXPI293 / Production host: Homo sapiens (human) |
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| #2: Antibody | Mass: 23277.766 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): EXPI293 / Production host: Homo sapiens (human) |
| #3: Antibody | Mass: 20802.520 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): EXPI293 / Production host: Homo sapiens (human) |
| #4: Antibody | Mass: 17205.020 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): EXPI293 / Production host: Homo sapiens (human) |
-Non-polymers , 2 types, 413 molecules 


| #5: Chemical | ChemComp-SO4 / #6: Water | ChemComp-HOH / | |
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-Details
| Has protein modification | Y |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.11 Å3/Da / Density % sol: 41.6 % |
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| Crystal grow | Temperature: 298 K / Method: vapor diffusion / pH: 4.6 Details: 2.04 M ammonium sulfate, 0.1 M sodium acetate pH 4.6 Cryoprotected in 2.1 M ammonium sulfate, 0.1 M sodium acetate pH 4.6 and 25 % (v/v) ethylene glycol |
-Data collection
| Diffraction | Mean temperature: 100 K |
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| Diffraction source | Source: SYNCHROTRON / Site: Diamond / Beamline: I02 / Wavelength: 0.9794 Å |
| Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Nov 21, 2014 / Details: Mirrors |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.9794 Å / Relative weight: 1 |
| Reflection | Resolution: 1.87→29.75 Å / Num. obs: 118143 / % possible obs: 99.6 % / Redundancy: 5.9 % / Biso Wilson estimate: 39.3 Å2 / CC1/2: 0.998 / Rrim(I) all: 0.086 / Net I/σ(I): 11.5 |
| Reflection shell | Resolution: 1.87→1.92 Å / Redundancy: 5.7 % / Mean I/σ(I) obs: 1 / Num. unique obs: 8595 / CC1/2: 0.288 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: 2vxs, 2vxv Resolution: 1.87→29.749 Å / SU ML: 0.2 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 21.05
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 1.87→29.749 Å
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| Refine LS restraints |
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| LS refinement shell |
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| Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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| Refinement TLS group |
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About Yorodumi




Homo sapiens (human)
X-RAY DIFFRACTION
United Kingdom, 7items
Citation





















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