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- EMDB-29264: Cryo-EM Structure of PG9RSH DU025 Fab in complex with BG505 DS-SO... -
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Open data
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Basic information
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Title | Cryo-EM Structure of PG9RSH DU025 Fab in complex with BG505 DS-SOSIP.664 | |||||||||
![]() | Sharpened map | |||||||||
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![]() | CD4 / HIV-1 / SOSIP / Vaccine / IMMUNE SYSTEM / llama / V2 apex / therapeutic / VIRAL PROTEIN | |||||||||
Function / homology | ![]() positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / 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 / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / apoptotic process / host cell plasma membrane / structural molecule activity / virion membrane / identical protein binding / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.75 Å | |||||||||
![]() | Gorman J / Kwong PD | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Improved HIV-1 neutralization breadth and potency of V2-apex antibodies by in silico design. Authors: Graham T Holt / Jason Gorman / Siyu Wang / Anna U Lowegard / Baoshan Zhang / Tracy Liu / Bob C Lin / Mark K Louder / Marcel S Frenkel / Krisha McKee / Sijy O'Dell / Reda Rawi / Chen-Hsiang ...Authors: Graham T Holt / Jason Gorman / Siyu Wang / Anna U Lowegard / Baoshan Zhang / Tracy Liu / Bob C Lin / Mark K Louder / Marcel S Frenkel / Krisha McKee / Sijy O'Dell / Reda Rawi / Chen-Hsiang Shen / Nicole A Doria-Rose / Peter D Kwong / Bruce R Donald / ![]() Abstract: Broadly neutralizing antibodies (bNAbs) against HIV can reduce viral transmission in humans, but an effective therapeutic will require unusually high breadth and potency of neutralization. We employ ...Broadly neutralizing antibodies (bNAbs) against HIV can reduce viral transmission in humans, but an effective therapeutic will require unusually high breadth and potency of neutralization. We employ the OSPREY computational protein design software to engineer variants of two apex-directed bNAbs, PGT145 and PG9RSH, resulting in increases in potency of over 100-fold against some viruses. The top designed variants improve neutralization breadth from 39% to 54% at clinically relevant concentrations (IC < 1 μg/mL) and improve median potency (IC) by up to 4-fold over a cross-clade panel of 208 strains. To investigate the mechanisms of improvement, we determine cryoelectron microscopy structures of each variant in complex with the HIV envelope trimer. Surprisingly, we find the largest increases in breadth to be a result of optimizing side-chain interactions with highly variable epitope residues. These results provide insight into mechanisms of neutralization breadth and inform strategies for antibody design and improvement. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 140.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 24.1 KB 24.1 KB | Display Display | ![]() |
Images | ![]() | 82.3 KB | ||
Masks | ![]() | 149.9 MB | ![]() | |
Others | ![]() ![]() ![]() ![]() | 27 MB 9.2 MB 139.3 MB 139.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8fl1MC ![]() 8fk5C ![]() 8flwC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Sharpened map | ||||||||||||||||||||
Voxel size | X=Y=Z: 1.083 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Additional map: Unsharpened map
File | emd_29264_additional_1.map | ||||||||||||
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Annotation | Unsharpened map | ||||||||||||
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-Additional map: resolve density modified map
File | emd_29264_additional_2.map | ||||||||||||
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Annotation | resolve density modified map | ||||||||||||
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-Half map: half map B
File | emd_29264_half_map_1.map | ||||||||||||
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Annotation | half map B | ||||||||||||
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Density Histograms |
-Half map: half map A
File | emd_29264_half_map_2.map | ||||||||||||
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Annotation | half map A | ||||||||||||
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Sample components
-Entire : Cryo-EM Structure of PG9RSH DU025 Fab in complex with BG505 DS-SO...
Entire | Name: Cryo-EM Structure of PG9RSH DU025 Fab in complex with BG505 DS-SOSIP.664 |
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Components |
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-Supramolecule #1: Cryo-EM Structure of PG9RSH DU025 Fab in complex with BG505 DS-SO...
Supramolecule | Name: Cryo-EM Structure of PG9RSH DU025 Fab in complex with BG505 DS-SOSIP.664 type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Envelope glycoprotein gp41
Macromolecule | Name: Envelope glycoprotein gp41 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 17.146482 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: AVGIGAVFLG FLGAAGSTMG AASMTLTVQA RNLLSGIVQQ QSNLLRAPEA QQHLLKLTVW GIKQLQARVL AVERYLRDQQ LLGIWGCSG KLICCTNVPW NSSWSNRNLS EIWDNMTWLQ WDKEISNYTQ IIYGLLEESQ NQQEKNEQDL LALD UniProtKB: Envelope glycoprotein gp160 |
-Macromolecule #2: Envelope glycoprotein gp120
Macromolecule | Name: Envelope glycoprotein gp120 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 54.086324 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: AENLWVTVYY GVPVWKDAET TLFCASDAKA YETEKHNVWA THACVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHTDIIS LWDQSLKPC VKLTPLCVTL QCTNVTNNIT DDMRGELKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT ...String: AENLWVTVYY GVPVWKDAET TLFCASDAKA YETEKHNVWA THACVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHTDIIS LWDQSLKPC VKLTPLCVTL QCTNVTNNIT DDMRGELKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT SACTQACPKV SFEPIPIHYC APAGFAILKC KDKKFNGTGP CPSVSTVQCT HGIKPVVSTQ LLLNGSLAEE EV MIRSENI TNNAKNILVQ FNTPVQINCT RPNNNTRKSI RIGPGQAFYA TGDIIGDIRQ AHCNVSKATW NETLGKVVKQ LRK HFGNNT IIRFANSSGG DLEVTTHSFN CGGEFFYCNT SGLFNSTWIS NTSVQGSNST GSNDSITLPC RIKQIINMWQ RIGQ CMYAP PIQGVIRCVS NITGLILTRD GGSTNSTTET FRPGGGDMRD NWRSELYKYK VVKIEPLGVA PTRCKRRVVG RRRRR R UniProtKB: Envelope glycoprotein gp160 |
-Macromolecule #3: PG9 DU025 Heavy
Macromolecule | Name: PG9 DU025 Heavy / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 27.163102 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: ERLVESGGGV VQPGSSLRLS CAASGFDFSR QGMHWVRQAP GQGLEWVAFI KYDGSEKYHA DSVWGRLSIS RDNSKDTLYL QMNSLRVED TATYFCVREA GGPDYRNGYN (TYS)(TYS)DFDDGYYN YHYMDVWGKG TTVTVSSAST KGPSVFPLAP SSK STSGGT ...String: ERLVESGGGV VQPGSSLRLS CAASGFDFSR QGMHWVRQAP GQGLEWVAFI KYDGSEKYHA DSVWGRLSIS RDNSKDTLYL QMNSLRVED TATYFCVREA GGPDYRNGYN (TYS)(TYS)DFDDGYYN YHYMDVWGKG TTVTVSSAST KGPSVFPLAP SSK STSGGT AALGCLVKDY FPEPVTVSWN SGALTSGVHT FPAVLQSSGL YSLSSVVTVP SSSLGTQTYI CNVNHKPSNT KVDK KVEPK SCDKGLEVLF Q |
-Macromolecule #4: PG9 DU025 Light
Macromolecule | Name: PG9 DU025 Light / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 22.832195 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: QSALTQPASV SGSPGQSITI SCQGTSNDVG GYESVSWYQQ HPGKAPKVVI YDVSKRPSGV SNRFSGSKSG NTASLTISGL QAEDEGDYY CKSLTSRSHR VFGTGTKLTV LGQPKAAPSV TLFPPSSEEL QANKATLVCL ISDFYPGAVT VAWKADSSPV K AGVETTTP ...String: QSALTQPASV SGSPGQSITI SCQGTSNDVG GYESVSWYQQ HPGKAPKVVI YDVSKRPSGV SNRFSGSKSG NTASLTISGL QAEDEGDYY CKSLTSRSHR VFGTGTKLTV LGQPKAAPSV TLFPPSSEEL QANKATLVCL ISDFYPGAVT VAWKADSSPV K AGVETTTP SKQSNNKYAA SSYLSLTPEQ WKSHRSYSCQ VTHEGSTVEK TVAPTECS |
-Macromolecule #10: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 10 / Number of copies: 40 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 7.4 / Details: PBS |
Grid | Model: C-flat-1.2/1.3 / Support film - Material: CARBON / Support film - topology: HOLEY |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 293 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Average exposure time: 2.0 sec. / Average electron dose: 63.75 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |