+Open data
-Basic information
Entry | Database: PDB / ID: 7sq1 | ||||||
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Title | BG505.MD39TS Env trimer in complex with Fab from antibody C05 | ||||||
Components |
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Keywords | Viral Protein/Immune System / antibody / Env / envelope / Viral Protein-Immune System complex | ||||||
Function / homology | Function and homology information positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / virus-mediated perturbation of host defense response / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / virus-mediated perturbation of host defense response / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / 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 / structural molecule activity / identical protein binding / plasma membrane Similarity search - Function | ||||||
Biological species | Human immunodeficiency virus 1 Mus musculus (house mouse) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å | ||||||
Authors | Moore, A. / Du, J. / Xu, Z. / Walker, S. / Kulp, D.W. / Pallesen, J. | ||||||
Funding support | 1items
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Citation | Journal: Nat Commun / Year: 2022 Title: Induction of tier-2 neutralizing antibodies in mice with a DNA-encoded HIV envelope native like trimer. Authors: Ziyang Xu / Susanne Walker / Megan C Wise / Neethu Chokkalingam / Mansi Purwar / Alan Moore / Edgar Tello-Ruiz / Yuanhan Wu / Sonali Majumdar / Kylie M Konrath / Abhijeet Kulkarni / Nicholas ...Authors: Ziyang Xu / Susanne Walker / Megan C Wise / Neethu Chokkalingam / Mansi Purwar / Alan Moore / Edgar Tello-Ruiz / Yuanhan Wu / Sonali Majumdar / Kylie M Konrath / Abhijeet Kulkarni / Nicholas J Tursi / Faraz I Zaidi / Emma L Reuschel / Ishaan Patel / April Obeirne / Jianqiu Du / Katherine Schultheis / Lauren Gites / Trevor Smith / Janess Mendoza / Kate E Broderick / Laurent Humeau / Jesper Pallesen / David B Weiner / Daniel W Kulp / Abstract: HIV Envelope (Env) is the main vaccine target for induction of neutralizing antibodies. Stabilizing Env into native-like trimer (NLT) conformations is required for recombinant protein immunogens to ...HIV Envelope (Env) is the main vaccine target for induction of neutralizing antibodies. Stabilizing Env into native-like trimer (NLT) conformations is required for recombinant protein immunogens to induce autologous neutralizing antibodies(nAbs) against difficult to neutralize HIV strains (tier-2) in rabbits and non-human primates. Immunizations of mice with NLTs have generally failed to induce tier-2 nAbs. Here, we show that DNA-encoded NLTs fold properly in vivo and induce autologous tier-2 nAbs in mice. DNA-encoded NLTs also uniquely induce both CD4 + and CD8 + T-cell responses as compared to corresponding protein immunizations. Murine neutralizing antibodies are identified with an advanced sequencing technology. The structure of an Env-Ab (C05) complex, as determined by cryo-EM, identifies a previously undescribed neutralizing Env C3/V5 epitope. Beyond potential functional immunity gains, DNA vaccines permit in vivo folding of structured antigens and provide significant cost and speed advantages for enabling rapid evaluation of new HIV vaccines. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7sq1.cif.gz | 457.6 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7sq1.ent.gz | 383.1 KB | Display | PDB format |
PDBx/mmJSON format | 7sq1.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/sq/7sq1 ftp://data.pdbj.org/pub/pdb/validation_reports/sq/7sq1 | HTTPS FTP |
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-Related structure data
Related structure data | 25376MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 2 types, 6 molecules BDFCEG
#1: Protein | Mass: 17134.324 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Human immunodeficiency virus 1 / Gene: env / Production host: Homo sapiens (human) / References: UniProt: Q2N0S6 #2: Protein | Mass: 52917.855 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Human immunodeficiency virus 1 / Gene: env / Production host: Homo sapiens (human) / References: UniProt: Q2N0S6 |
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-Antibody , 2 types, 4 molecules LIHA
#3: Antibody | Mass: 12031.465 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Production host: Homo sapiens (human) #4: Antibody | Mass: 13727.245 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Production host: Homo sapiens (human) |
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-Sugars , 5 types, 67 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 | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose | Source method: isolated from a genetically manipulated source #7: Polysaccharide | Source method: isolated from a genetically manipulated source #8: Polysaccharide | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source #9: Sugar | ChemComp-NAG / |
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-Details
Has ligand of interest | N |
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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 | Name: BG505.MD39TS Env trimer in complex with Fab from antibody C05 Type: COMPLEX / Entity ID: #1-#4 / Source: MULTIPLE SOURCES |
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Molecular weight | Value: 0.41 MDa / Experimental value: NO |
Buffer solution | pH: 7.4 |
Specimen | Conc.: 0.05 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
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: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy |
Image recording | Average exposure time: 2.59 sec. / Electron dose: 60.6 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 5485 |
Image scans | Sampling size: 5 µm / Width: 6000 / Height: 4000 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1455164 | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 121929 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL |