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- PDB-7ucf: Structure of the BG505 SOSIP.664 trimer in complex with neutraliz... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7ucf | ||||||||||||
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Title | Structure of the BG505 SOSIP.664 trimer in complex with neutralizing antibody Fab fragments 10-1074 and BG24 | ||||||||||||
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![]() | VIRAL PROTEIN/IMMUNE SYSTEM / broadly neutralizing antibody / bNAb / HIV-1 / CD4 binding site / VH1-2 / VRC01-class / antiviral protein / VIRAL PROTEIN-IMMUNE SYSTEM complex | ||||||||||||
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 ...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 | ![]() ![]() ![]() | ||||||||||||
![]() | Barnes, C.O. / Bjorkman, P.J. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: A naturally arising broad and potent CD4-binding site antibody with low somatic mutation. Authors: Christopher O Barnes / Till Schoofs / Priyanthi N P Gnanapragasam / Jovana Golijanin / Kathryn E Huey-Tubman / Henning Gruell / Philipp Schommers / Nina Suh-Toma / Yu Erica Lee / Julio C ...Authors: Christopher O Barnes / Till Schoofs / Priyanthi N P Gnanapragasam / Jovana Golijanin / Kathryn E Huey-Tubman / Henning Gruell / Philipp Schommers / Nina Suh-Toma / Yu Erica Lee / Julio C Cetrulo Lorenzi / Alicja Piechocka-Trocha / Johannes F Scheid / Anthony P West / Bruce D Walker / Michael S Seaman / Florian Klein / Michel C Nussenzweig / Pamela J Bjorkman / ![]() ![]() Abstract: The induction of broadly neutralizing antibodies (bNAbs) is a potential strategy for a vaccine against HIV-1. However, most bNAbs exhibit features such as unusually high somatic hypermutation, ...The induction of broadly neutralizing antibodies (bNAbs) is a potential strategy for a vaccine against HIV-1. However, most bNAbs exhibit features such as unusually high somatic hypermutation, including insertions and deletions, which make their induction challenging. VRC01-class bNAbs not only exhibit extraordinary breadth and potency but also rank among the most highly somatically mutated bNAbs. Here, we describe a VRC01-class antibody isolated from a viremic controller, BG24, that is much less mutated than most relatives of its class while achieving comparable breadth and potency. A 3.8-Å x-ray crystal structure of a BG24-BG505 Env trimer complex revealed conserved contacts at the gp120 interface characteristic of the VRC01-class Abs, despite lacking common CDR3 sequence motifs. The existence of moderately mutated CD4-binding site (CD4bs) bNAbs such as BG24 provides a simpler blueprint for CD4bs antibody induction by a vaccine, raising the prospect that such an induction might be feasible with a germline-targeting approach. | ||||||||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 350.8 KB | Display | ![]() |
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PDB format | ![]() | 241.6 KB | Display | ![]() |
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-Validation report
Summary document | ![]() | 4.7 MB | Display | ![]() |
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Full document | ![]() | 4.7 MB | Display | |
Data in XML | ![]() | 65 KB | Display | |
Data in CIF | ![]() | 87 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7uceC ![]() 7ucgC ![]() 5cezS S: Starting model for refinement 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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Unit cell |
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Components
-Envelope glycoprotein ... , 2 types, 2 molecules BG
#1: Protein | Mass: 17146.482 Da / Num. of mol.: 1 / Fragment: UNP residues 509-661 Source method: isolated from a genetically manipulated source Details: Env mimic BG505 / Source: (gene. exp.) ![]() ![]() ![]() |
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#4: Protein | Mass: 55774.395 Da / Num. of mol.: 1 / Fragment: UNP residues 29-505 Source method: isolated from a genetically manipulated source Details: Env mimic BG505 SOSIP.664 v3.2 / Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody , 4 types, 4 molecules DEHL
#2: Antibody | Mass: 25370.445 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#3: Antibody | Mass: 21897.195 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#5: Antibody | Mass: 26389.465 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#6: Antibody | Mass: 23180.760 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Sugars , 16 types, 22 molecules 


#7: Polysaccharide | alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source | ||||||||||||||||||||||||||||
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#8: Polysaccharide | Source method: isolated from a genetically manipulated source #9: Polysaccharide | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]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 #10: Polysaccharide | beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose- ...beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[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 | Type: oligosaccharide / Mass: 1276.157 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source #11: Polysaccharide | alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-6)-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 #12: Polysaccharide | alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D- ...alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Type: oligosaccharide / Mass: 1072.964 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source #13: Polysaccharide | Source method: isolated from a genetically manipulated source #14: Polysaccharide | Source method: isolated from a genetically manipulated source #15: 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 #16: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(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 #17: Polysaccharide | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-beta-D- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-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 #18: Polysaccharide | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-[alpha-D- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-[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 #19: Polysaccharide | beta-D-mannopyranose-(1-4)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D- ...beta-D-mannopyranose-(1-4)-alpha-D-mannopyranose-(1-6)-[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 | Type: oligosaccharide / Mass: 1072.964 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source #20: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source #21: Sugar | #22: Sugar | ChemComp-FUC / | |
-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.86 Å3/Da / Density % sol: 68.13 % |
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Crystal grow | Temperature: 295 K / Method: vapor diffusion, sitting drop / pH: 6.5 / Details: 0.1 M Bis-Tris pH 6.5, 20% PEG1500 |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Jan 27, 2019 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.987 Å / Relative weight: 1 |
Reflection | Resolution: 3.8→39.49 Å / Num. obs: 24941 / % possible obs: 99.6 % / Redundancy: 11.3 % / Biso Wilson estimate: 215.96 Å2 / CC1/2: 0.998 / Rmerge(I) obs: 0.143 / Rpim(I) all: 0.066 / Net I/σ(I): 7.4 |
Reflection shell | Resolution: 3.8→4.06 Å / Rmerge(I) obs: 7.29 / Mean I/σ(I) obs: 0.3 / Num. unique obs: 4480 / CC1/2: 0.21 / Rpim(I) all: 2.36 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 5CEZ Resolution: 4→39.49 Å / SU ML: 0.6465 / Cross valid method: FREE R-VALUE / σ(F): 1.96 / Phase error: 42.7504 Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 264.86 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 4→39.49 Å
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Refine LS restraints |
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LS refinement shell |
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