+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-5782 | |||||||||
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Title | Cryo-EM structure of the BG505 SOSIP.664 HIV-1 Env trimer | |||||||||
Map data | Reconstruction of the HIV-1 BG505 SOSIP.664 Envelope trimer | |||||||||
Sample |
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Keywords | HIV-1 trimeric spike / gp140 / SOSIP / broadly neutralizing antibody / PGV04 / Env / Envelope glycoprotein | |||||||||
Biological species | Human immunodeficiency virus 1 | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 12.7 Å | |||||||||
Authors | Lyumkis D / Julien JP / de Val N / Cupo A / Potter CS / Klasse PJ / Burton DR / Sanders RW / Moore JP / Carragher B ...Lyumkis D / Julien JP / de Val N / Cupo A / Potter CS / Klasse PJ / Burton DR / Sanders RW / Moore JP / Carragher B / Wilson IA / Ward AB | |||||||||
Citation | Journal: Science / Year: 2013 Title: Cryo-EM structure of a fully glycosylated soluble cleaved HIV-1 envelope trimer. Authors: Dmitry Lyumkis / Jean-Philippe Julien / Natalia de Val / Albert Cupo / Clinton S Potter / Per-Johan Klasse / Dennis R Burton / Rogier W Sanders / John P Moore / Bridget Carragher / Ian A ...Authors: Dmitry Lyumkis / Jean-Philippe Julien / Natalia de Val / Albert Cupo / Clinton S Potter / Per-Johan Klasse / Dennis R Burton / Rogier W Sanders / John P Moore / Bridget Carragher / Ian A Wilson / Andrew B Ward / Abstract: The HIV-1 envelope glycoprotein (Env) trimer contains the receptor binding sites and membrane fusion machinery that introduce the viral genome into the host cell. As the only target for broadly ...The HIV-1 envelope glycoprotein (Env) trimer contains the receptor binding sites and membrane fusion machinery that introduce the viral genome into the host cell. As the only target for broadly neutralizing antibodies (bnAbs), Env is a focus for rational vaccine design. We present a cryo-electron microscopy reconstruction and structural model of a cleaved, soluble Env trimer (termed BG505 SOSIP.664 gp140) in complex with a CD4 binding site (CD4bs) bnAb, PGV04, at 5.8 angstrom resolution. The structure reveals the spatial arrangement of Env components, including the V1/V2, V3, HR1, and HR2 domains, as well as shielding glycans. The structure also provides insights into trimer assembly, gp120-gp41 interactions, and the CD4bs epitope cluster for bnAbs, which covers a more extensive area and defines a more complex site of vulnerability than previously described. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_5782.map.gz | 13.5 MB | EMDB map data format | |
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Header (meta data) | emd-5782-v30.xml emd-5782.xml | 10.6 KB 10.6 KB | Display Display | EMDB header |
Images | emd_5782_1.png | 90.8 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-5782 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-5782 | HTTPS FTP |
-Validation report
Summary document | emd_5782_validation.pdf.gz | 78.2 KB | Display | EMDB validaton report |
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Full document | emd_5782_full_validation.pdf.gz | 77.3 KB | Display | |
Data in XML | emd_5782_validation.xml.gz | 494 B | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5782 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5782 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_5782.map.gz / Format: CCP4 / Size: 15.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Reconstruction of the HIV-1 BG505 SOSIP.664 Envelope trimer | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.365 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Fully glycosylated BG505 SOSIP.664 Envelope trimer
Entire | Name: Fully glycosylated BG505 SOSIP.664 Envelope trimer |
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Components |
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-Supramolecule #1000: Fully glycosylated BG505 SOSIP.664 Envelope trimer
Supramolecule | Name: Fully glycosylated BG505 SOSIP.664 Envelope trimer / type: sample / ID: 1000 Oligomeric state: three SOSIP.650 gp140 subunits (trimeric HIV-1 spike) Number unique components: 1 |
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Molecular weight | Theoretical: 450 KDa |
-Macromolecule #1: BG505 SOSIP.650 HIV-1 Envelope glycoprotein gp140
Macromolecule | Name: BG505 SOSIP.650 HIV-1 Envelope glycoprotein gp140 / type: protein_or_peptide / ID: 1 / Name.synonym: Env / Number of copies: 3 / Oligomeric state: trimer / Recombinant expression: Yes |
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Source (natural) | Organism: Human immunodeficiency virus 1 / Strain: BG505.W6M.ENV.A5 / synonym: human immunodeficiency virus type I |
Molecular weight | Theoretical: 150 KDa |
Recombinant expression | Organism: Homo sapiens (human) / Recombinant cell: HEK 293T |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 1.45 mg/mL |
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Buffer | pH: 7.6 / Details: 20 mM Tris, 150 mM NaCl, 0.085 mM DDM |
Grid | Details: 400 mesh C-Flat CF-22-4C, plasma treated for 5 seconds |
Vitrification | Cryogen name: ETHANE / Instrument: HOMEMADE PLUNGER Method: Specimen was prepared for cryo-EM by applying 3 microliters of sample to a freshly plasma cleaned holey carbon C-flat grid (Protochips, Inc.), allowing the sample to adsorb to the grid for 30 ...Method: Specimen was prepared for cryo-EM by applying 3 microliters of sample to a freshly plasma cleaned holey carbon C-flat grid (Protochips, Inc.), allowing the sample to adsorb to the grid for 30 seconds, followed by blotting with a small piece of filter paper and plunge-freezing into liquid ethane using a manual cryo-plunger in an ambient environment (4 degrees C). |
-Electron microscopy
Microscope | FEI TECNAI F20 |
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Alignment procedure | Legacy - Astigmatism: objective lens astigmatism was corrected by observing Thon rings with the Leginon software |
Date | Mar 29, 2013 |
Image recording | Category: CCD / Film or detector model: GENERIC TVIPS (4k x 4k) / Digitization - Sampling interval: 15.6 µm / Number real images: 1112 / Average electron dose: 32 e/Å2 |
Tilt angle min | 0 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Calibrated magnification: 62000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 62000 |
Sample stage | Specimen holder model: SIDE ENTRY, EUCENTRIC |
Experimental equipment | Model: Tecnai F20 / Image courtesy: FEI Company |
-Image processing
Details | Reconstructed using resolution-limited refinement procedure implemented in Xmipp and Frealign. |
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CTF correction | Details: Frealign |
Final reconstruction | Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 12.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: Xmipp, Frealign / Number images used: 6208 |