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- PDB-8sw4: BG505 GT1.1 SOSIP in complex with NHP Fabs 21N13, 21M20 and RM20A3 -
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Open data
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Basic information
Entry | Database: PDB / ID: 8sw4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | BG505 GT1.1 SOSIP in complex with NHP Fabs 21N13, 21M20 and RM20A3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | VIRAL PROTEIN / germline targeting / HIV-1 Env / neutralizing antibody / non-human primate antibody / CD4 binding site / fusion peptide | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / 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 ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / 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 / membrane Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.85 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Ozorowski, G. / Torres, J.L. / Zhang, S. / Ward, A.B. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Germline-targeting HIV vaccination induces neutralizing antibodies to the CD4 binding site. Authors: Tom G Caniels / Max Medina-Ramìrez / Shiyu Zhang / Sven Kratochvil / Yuejiao Xian / Ja-Hyun Koo / Ronald Derking / Jakob Samsel / Jelle van Schooten / Simone Pecetta / Edward Lamperti / ...Authors: Tom G Caniels / Max Medina-Ramìrez / Shiyu Zhang / Sven Kratochvil / Yuejiao Xian / Ja-Hyun Koo / Ronald Derking / Jakob Samsel / Jelle van Schooten / Simone Pecetta / Edward Lamperti / Meng Yuan / María Ríos Carrasco / Iván Del Moral Sánchez / Joel D Allen / Joey H Bouhuijs / Anila Yasmeen / Thomas J Ketas / Jonne L Snitselaar / Tom P L Bijl / Isabel Cuella Martin / Jonathan L Torres / Albert Cupo / Lisa Shirreff / Kenneth Rogers / Rosemarie D Mason / Mario Roederer / Kelli M Greene / Hongmei Gao / Catarina Mendes Silva / Isabel J L Baken / Ming Tian / Frederick W Alt / Bali Pulendran / Michael S Seaman / Max Crispin / Marit J van Gils / David C Montefiori / Adrian B McDermott / François J Villinger / Richard A Koup / John P Moore / Per Johan Klasse / Gabriel Ozorowski / Facundo D Batista / Ian A Wilson / Andrew B Ward / Rogier W Sanders / ![]() ![]() ![]() Abstract: Eliciting potent and broadly neutralizing antibodies (bnAbs) is a major goal in HIV-1 vaccine development. Here, we describe how germline-targeting immunogen BG505 SOSIP germline trimer 1.1 (GT1.1), ...Eliciting potent and broadly neutralizing antibodies (bnAbs) is a major goal in HIV-1 vaccine development. Here, we describe how germline-targeting immunogen BG505 SOSIP germline trimer 1.1 (GT1.1), generated through structure-based design, engages a diverse range of VRC01-class bnAb precursors. A single immunization with GT1.1 expands CD4 binding site (CD4bs)-specific VRC01-class B cells in knock-in mice and drives VRC01-class maturation. In nonhuman primates (NHPs), GT1.1 primes CD4bs-specific neutralizing serum responses. Selected monoclonal antibodies (mAbs) isolated from GT1.1-immunized NHPs neutralize fully glycosylated BG505 virus. Two mAbs, 12C11 and 21N13, neutralize subsets of diverse heterologous neutralization-resistant viruses. High-resolution structures revealed that 21N13 targets the same conserved residues in the CD4bs as VRC01-class and CH235-class bnAbs despite its low sequence similarity (~40%), whereas mAb 12C11 binds predominantly through its heavy chain complementarity-determining region 3. These preclinical data underpin the ongoing evaluation of GT1.1 in a phase 1 clinical trial in healthy volunteers. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 661 KB | Display | ![]() |
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PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 40797MC ![]() 8sw3C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 3 types, 7 molecules HACDBGI
#1: Protein | Mass: 13737.351 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() | ||
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#3: Protein | Mass: 57275.480 Da / Num. of mol.: 3 Mutation: E64K, K169R, Y173H, S174A, R178K, V181I, Q183P, G188N, N189T, E190S, S199A, E275K, N276D, T278R, A316W, N386D, N462D, G471S, A501C Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #4: Protein | Mass: 17146.482 Da / Num. of mol.: 3 / Fragment: UNP residues 509-661 / Mutation: I559P, T605C Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody , 5 types, 13 molecules LEJKFMNOQSPRT
#2: Antibody | Mass: 11358.563 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() | ||||||
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#5: Antibody | Mass: 13424.034 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #6: Antibody | Mass: 11755.821 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #7: Antibody | Mass: 14476.926 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #8: Antibody | Mass: 11757.068 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Sugars , 3 types, 37 molecules 
#9: Polysaccharide | #10: 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 #11: Sugar | ChemComp-NAG / |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-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
Component | Name: BG505 GT1.1 SOSIP in complex with 21N13 Fab, 21M20 Fab and RM20A3 Fab Type: COMPLEX / Entity ID: #1-#8 / Source: RECOMBINANT | ||||||||||||||||||||
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Molecular weight | Value: 0.77 MDa / Experimental value: NO | ||||||||||||||||||||
Source (natural) | Organism: ![]() ![]() | ||||||||||||||||||||
Source (recombinant) | Organism: ![]() | ||||||||||||||||||||
Buffer solution | pH: 7.4 / Details: Detergent added shortly before freezing | ||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Microscopy | Model: TFS GLACIOS |
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Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 190000 X / Nominal defocus max: 1500 nm / Nominal defocus min: 700 nm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 48.5 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.20.1_4487: / Classification: refinement | |||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 242098 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||
Refine LS restraints |
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