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- EMDB-41461: Cryo-EM structure of BG505 Env mutant A517E in complex with antib... -

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Basic information

Entry
Database: EMDB / ID: EMD-41461
TitleCryo-EM structure of BG505 Env mutant A517E in complex with antibody ACS202 Fab
Map data
Sample
  • Complex: HIV-1 Env trimer complexed with antibody Fab
    • Complex: antibody Fab
      • Protein or peptide: antibody ACS202 Fab heavy chain
      • Protein or peptide: antibody ACS202 Fab light chain
    • Protein or peptide: Envelope glycoprotein gp41
    • Protein or peptide: Envelope glycoprotein gp120
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: water
Keywordscomplex / viral antigen / antibody / VIRAL PROTEIN / VIRAL PROTEIN-ANTIVIRAL 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 / 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
Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120
Similarity search - Domain/homology
Envelope glycoprotein gp160
Similarity search - Component
Biological speciesHuman immunodeficiency virus 1 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.3 Å
AuthorsWang S / Kwong PD
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) United States
CitationJournal: To Be Published
Title: Cryo-EM structure of BG505 Env mutant A517E in complex with antibody ACS202 Fab
Authors: Wang S / Kwong PD
History
DepositionAug 4, 2023-
Header (metadata) releaseAug 14, 2024-
Map releaseAug 14, 2024-
UpdateAug 14, 2024-
Current statusAug 14, 2024Processing site: RCSB / Status: Released

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Structure visualization

Downloads & links

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Map

FileDownload / File: emd_41461.map.gz / Format: CCP4 / Size: 343 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.83 Å
Density
Contour LevelBy AUTHOR: 0.0435
Minimum - Maximum-0.21134672 - 0.6992145
Average (Standard dev.)0.0006788692 (±0.014313555)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions448448448
Spacing448448448
CellA=B=C: 371.84 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : HIV-1 Env trimer complexed with antibody Fab

EntireName: HIV-1 Env trimer complexed with antibody Fab
Components
  • Complex: HIV-1 Env trimer complexed with antibody Fab
    • Complex: antibody Fab
      • Protein or peptide: antibody ACS202 Fab heavy chain
      • Protein or peptide: antibody ACS202 Fab light chain
    • Protein or peptide: Envelope glycoprotein gp41
    • Protein or peptide: Envelope glycoprotein gp120
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: water

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Supramolecule #1: HIV-1 Env trimer complexed with antibody Fab

SupramoleculeName: HIV-1 Env trimer complexed with antibody Fab / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Details: gp41 and gp120 expressed as a single polypeptide, post translationally cleaved; antibody expressed and purified separately; purified Env trimer and Fab were mixed to make complex
Source (natural)Organism: Human immunodeficiency virus 1 / Strain: BG505

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Supramolecule #2: antibody Fab

SupramoleculeName: antibody Fab / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #3-#4
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Envelope glycoprotein gp41

MacromoleculeName: Envelope glycoprotein gp41 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1 / Strain: BG505
Molecular weightTheoretical: 17.134404 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
AVGIGEVFLG FLGAAGSTMG AASNTLTVQA RQLLSGIVQQ QSNLLRAPEA QQHLLKLGVW GFKQLQARVL AVERYLEVQQ LLGIWGCSG KLICCTNVPW NSSWSNRNLS EIWDNMTWLQ WDKEIGNYTQ IIYGLLEESQ FQQEINEQDL LALD

UniProtKB: Envelope glycoprotein gp160

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Macromolecule #2: Envelope glycoprotein gp120

MacromoleculeName: Envelope glycoprotein gp120 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1 / Strain: BG505
Molecular weightTheoretical: 53.262453 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: 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 SACTQICPKV SFEPIPIHYC APAGFAILKC KDKKFNGTGP CKNVSTVQCT HGIKPVVSTQ LLLNGSLAEE EV MIRSENI TNNAKNIIVQ FNTPVQINCT RPNNMTRKSI RIGPGQAFYA LGDIIGDIRQ PHCTVSKATW NETLGKVVKQ LRK HFGNNT IIFFANSSGG DLEVTTHSFN CGGEFFYCNT SGLFNSTWIS NTSVQGSNST GSNDSITLPC RIKQIINMWQ RVGQ CMYAP PIQGVIRCVS NITGLILTRD GGSTNSTTET FRPGGGDMRD NWRSELYKYK VVKIEPLGVA PTRCKRRVVG

UniProtKB: Envelope glycoprotein gp160

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Macromolecule #3: antibody ACS202 Fab heavy chain

MacromoleculeName: antibody ACS202 Fab heavy chain / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 25.295486 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: QVQLVESGGG VVQPGGSLRL SCAASGFAFK DFGMHWVRQA PGKGLEWVAV IGGGHGQHQS YSESVKGRFA ITRDNEKNKL YLHMDRLRT EDTAVYYCAK DRLGRPWNIG GRLVYYYYGM DVWGQGTTVT VSSASTKGPS VFPLAPSSKS TSGGTAALGC L VKDYFPEP ...String:
QVQLVESGGG VVQPGGSLRL SCAASGFAFK DFGMHWVRQA PGKGLEWVAV IGGGHGQHQS YSESVKGRFA ITRDNEKNKL YLHMDRLRT EDTAVYYCAK DRLGRPWNIG GRLVYYYYGM DVWGQGTTVT VSSASTKGPS VFPLAPSSKS TSGGTAALGC L VKDYFPEP VTVSWNSGAL TSGVHTFPAV LQSSGLYSLS SVVTVPSSSL GTQTYICNVN HKPSNTKVDK KVEPKSCD

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Macromolecule #4: antibody ACS202 Fab light chain

MacromoleculeName: antibody ACS202 Fab light chain / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.470197 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: AIRMTQSPSS LSASVGDRVT ITCQASQDIK KSLNWYRQKP GKAPELLIHD ASILQTGVPS AFTASGSGTH FSFVINKLQP EDVGTYFCQ EYENLQFTFG PGTKVEIKRT VAAPSVFIFP PSDEQLKSGT ASVVCLLNNF YPREAKVQWK VDNALQSGNS Q ESVTEQDS ...String:
AIRMTQSPSS LSASVGDRVT ITCQASQDIK KSLNWYRQKP GKAPELLIHD ASILQTGVPS AFTASGSGTH FSFVINKLQP EDVGTYFCQ EYENLQFTFG PGTKVEIKRT VAAPSVFIFP PSDEQLKSGT ASVVCLLNNF YPREAKVQWK VDNALQSGNS Q ESVTEQDS KDSTYSLSST LTLSKADYEK HKVYACEVTH QGLSSPVTKS FNRGEC

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Macromolecule #9: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 9 / Number of copies: 12 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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Macromolecule #10: water

MacromoleculeName: water / type: ligand / ID: 10 / Number of copies: 369 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration5 mg/mL
BufferpH: 7.4 / Details: PBS with 0.1 mM DTT
GridModel: Quantifoil R2/2 / Material: GOLD / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Average electron dose: 54.4 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.7000000000000001 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6vi0

Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C3 (3 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 2.3 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.3) / Number images used: 635332
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: UCSF Chimera (ver. 1.16)
Final angle assignmentType: NOT APPLICABLE

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: FLEXIBLE FIT
Output model

PDB-8tox:
Cryo-EM structure of BG505 Env mutant A517E in complex with antibody ACS202 Fab

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