[English] 日本語
Yorodumi- PDB-7l8y: BG505 SOSIP.v5.2 N241/N289 in complex with the polyclonal Fab pAb... -
+
Open data
-
Basic information
| Entry | Database: PDB / ID: 7l8y | ||||||
|---|---|---|---|---|---|---|---|
| Title | BG505 SOSIP.v5.2 N241/N289 in complex with the polyclonal Fab pAbC-5 from animal Rh.33311 (Wk26 time point) | ||||||
Components |
| ||||||
Keywords | VIRAL PROTEIN/Immune System / HIV / vaccine design / BG505 / VIRAL PROTEIN / Polyclonal antibodies / EMPEM / VIRAL PROTEIN-Immune System complex | ||||||
| Biological species | ![]() Human immunodeficiency virus 1![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||
Authors | Antanasijevic, A. / Sewall, L.M. / Cannac, F. / Ward, A.B. | ||||||
| Funding support | United States, 1items
| ||||||
Citation | Journal: Nat Commun / Year: 2021Title: Polyclonal antibody responses to HIV Env immunogens resolved using cryoEM. Authors: Aleksandar Antanasijevic / Leigh M Sewall / Christopher A Cottrell / Diane G Carnathan / Luis E Jimenez / Julia T Ngo / Jennifer B Silverman / Bettina Groschel / Erik Georgeson / Jinal ...Authors: Aleksandar Antanasijevic / Leigh M Sewall / Christopher A Cottrell / Diane G Carnathan / Luis E Jimenez / Julia T Ngo / Jennifer B Silverman / Bettina Groschel / Erik Georgeson / Jinal Bhiman / Raiza Bastidas / Celia LaBranche / Joel D Allen / Jeffrey Copps / Hailee R Perrett / Kimmo Rantalainen / Fabien Cannac / Yuhe R Yang / Alba Torrents de la Peña / Rebeca Froes Rocha / Zachary T Berndsen / David Baker / Neil P King / Rogier W Sanders / John P Moore / Shane Crotty / Max Crispin / David C Montefiori / Dennis R Burton / William R Schief / Guido Silvestri / Andrew B Ward / ![]() Abstract: Engineered ectodomain trimer immunogens based on BG505 envelope glycoprotein are widely utilized as components of HIV vaccine development platforms. In this study, we used rhesus macaques to evaluate ...Engineered ectodomain trimer immunogens based on BG505 envelope glycoprotein are widely utilized as components of HIV vaccine development platforms. In this study, we used rhesus macaques to evaluate the immunogenicity of several stabilized BG505 SOSIP constructs both as free trimers and presented on a nanoparticle. We applied a cryoEM-based method for high-resolution mapping of polyclonal antibody responses elicited in immunized animals (cryoEMPEM). Mutational analysis coupled with neutralization assays were used to probe the neutralization potential at each epitope. We demonstrate that cryoEMPEM data can be used for rapid, high-resolution analysis of polyclonal antibody responses without the need for monoclonal antibody isolation. This approach allowed to resolve structurally distinct classes of antibodies that bind overlapping sites. In addition to comprehensive mapping of commonly targeted neutralizing and non-neutralizing epitopes in BG505 SOSIP immunogens, our analysis revealed that epitopes comprising engineered stabilizing mutations and of partially occupied glycosylation sites can be immunogenic. | ||||||
| History |
|
-
Structure visualization
| Movie |
Movie viewer |
|---|---|
| Structure viewer | Molecule: Molmil Jmol/JSmol |
-
Downloads & links
-
Download
| PDBx/mmCIF format | 7l8y.cif.gz | 400.1 KB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb7l8y.ent.gz | 331 KB | Display | PDB format |
| PDBx/mmJSON format | 7l8y.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7l8y_validation.pdf.gz | 2.3 MB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 7l8y_full_validation.pdf.gz | 2.3 MB | Display | |
| Data in XML | 7l8y_validation.xml.gz | 70.9 KB | Display | |
| Data in CIF | 7l8y_validation.cif.gz | 105.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/l8/7l8y ftp://data.pdbj.org/pub/pdb/validation_reports/l8/7l8y | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 23240MC ![]() 7l7tC ![]() 7l7uC ![]() 7l85C ![]() 7l86C ![]() 7l87C ![]() 7l88C ![]() 7l89C ![]() 7l8aC ![]() 7l8bC ![]() 7l8cC ![]() 7l8dC ![]() 7l8eC ![]() 7l8fC ![]() 7l8gC ![]() 7l8sC ![]() 7l8tC ![]() 7l8uC ![]() 7l8wC ![]() 7l8xC ![]() 7l8zC ![]() 7l90C C: citing same article ( M: map data used to model this data |
|---|---|
| Similar structure data |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
-Rh.33311 pAbC-5 - ... , 2 types, 2 molecules HL
| #1: Protein | Mass: 9634.868 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
|---|---|
| #2: Protein | Mass: 8443.399 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-BG505 SOSIP.v5.2 N241/N289 - ... , 2 types, 6 molecules CAEDBF
| #3: Protein | Mass: 56417.125 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human immunodeficiency virus 1 / Plasmid: pPPI4 / Cell line (production host): HEK293 / Production host: Homo sapiens (human)#4: Protein | Mass: 16477.719 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human immunodeficiency virus 1 / Plasmid: pPPI4 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) |
|---|
-Sugars , 3 types, 58 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: Sugar | ChemComp-NAG / |
|---|
-Details
| Has ligand of interest | N |
|---|---|
| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component |
| ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||
| Source (natural) |
| ||||||||||||||||||||||||||||
| Source (recombinant) | Organism: Homo sapiens (human) | ||||||||||||||||||||||||||||
| Buffer solution | pH: 7.4 / Details: TBS buffer prepared from a 10X stock | ||||||||||||||||||||||||||||
| Buffer component |
| ||||||||||||||||||||||||||||
| Specimen | Conc.: 6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Polyclonal complexes were generated by incubation of isolated polyclonal Fabs with recombinantly expressed BG505 SOSIP and subsequent SEC purification. | ||||||||||||||||||||||||||||
| Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3 | ||||||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 283 K / Details: Blotting time varied between 3 and 7 seconds. |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| 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 / Nominal magnification: 29000 X / Nominal defocus max: 1600 nm / Nominal defocus min: 600 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: OTHER |
| Image recording | Average exposure time: 9.75 sec. / Electron dose: 44.3 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 4 / Num. of real images: 6268 |
| Image scans | Movie frames/image: 39 / Used frames/image: 1-39 |
-
Processing
| EM software |
| ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Image processing | Details: Frames were aligned using MotionCorr and GCTF was applied for estimation of CTF parameters. | ||||||||||||||||||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 1267693 / Details: Particles picked using template picker | ||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 52082 / Algorithm: BACK PROJECTION Details: 52082 symmetry-expanded particles. See the Methods section of the manuscript for details. Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building |
|
Movie
Controller
About Yorodumi




Human immunodeficiency virus 1

United States, 1items
Citation

UCSF Chimera






























































PDBj

Homo sapiens (human)


