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- EMDB-21227: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R -

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Basic information

Entry
Database: EMDB / ID: EMD-21227
TitleBG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
Map dataBG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
Sample
  • Complex: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
    • Protein or peptide: Envelope glycoprotein gp160
    • Protein or peptide: BG505 SOSIPv5.2 gp41
    • Protein or peptide: RM19R Kappa Light Chain
    • Protein or peptide: RM19R Heavy Chain
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
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 / Macaca mulatta (Rhesus monkey)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsCottrell CA / Ward AB
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)F31 Al131873 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)UM1 AI100663 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)UM1 AI144462 United States
CitationJournal: NPJ Vaccines / Year: 2020
Title: Targeting HIV Env immunogens to B cell follicles in nonhuman primates through immune complex or protein nanoparticle formulations.
Authors: Jacob T Martin / Christopher A Cottrell / Aleksandar Antanasijevic / Diane G Carnathan / Benjamin J Cossette / Chiamaka A Enemuo / Etse H Gebru / Yury Choe / Federico Viviano / Stephanie ...Authors: Jacob T Martin / Christopher A Cottrell / Aleksandar Antanasijevic / Diane G Carnathan / Benjamin J Cossette / Chiamaka A Enemuo / Etse H Gebru / Yury Choe / Federico Viviano / Stephanie Fischinger / Talar Tokatlian / Kimberly M Cirelli / George Ueda / Jeffrey Copps / Torben Schiffner / Sergey Menis / Galit Alter / William R Schief / Shane Crotty / Neil P King / David Baker / Guido Silvestri / Andrew B Ward / Darrell J Irvine /
Abstract: Following immunization, high-affinity antibody responses develop within germinal centers (GCs), specialized sites within follicles of the lymph node (LN) where B cells proliferate and undergo somatic ...Following immunization, high-affinity antibody responses develop within germinal centers (GCs), specialized sites within follicles of the lymph node (LN) where B cells proliferate and undergo somatic hypermutation. Antigen availability within GCs is important, as B cells must acquire and present antigen to follicular helper T cells to drive this process. However, recombinant protein immunogens such as soluble human immunodeficiency virus (HIV) envelope (Env) trimers do not efficiently accumulate in follicles following traditional immunization. Here, we demonstrate two strategies to concentrate HIV Env immunogens in follicles, via the formation of immune complexes (ICs) or by employing self-assembling protein nanoparticles for multivalent display of Env antigens. Using rhesus macaques, we show that within a few days following immunization, free trimers were present in a diffuse pattern in draining LNs, while trimer ICs and Env nanoparticles accumulated in B cell follicles. Whole LN imaging strikingly revealed that ICs and trimer nanoparticles concentrated in as many as 500 follicles in a single LN within two days after immunization. Imaging of LNs collected seven days postimmunization showed that Env nanoparticles persisted on follicular dendritic cells in the light zone of nascent GCs. These findings suggest that the form of antigen administered in vaccination can dramatically impact localization in lymphoid tissues and provides a new rationale for the enhanced immune responses observed following immunization with ICs or nanoparticles.
History
DepositionJan 21, 2020-
Header (metadata) releaseMar 11, 2020-
Map releaseAug 12, 2020-
UpdateDec 2, 2020-
Current statusDec 2, 2020Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.05
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.05
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6vkn
  • Surface level: 0.05
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-6vkn
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_21227.png

Downloads & links

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Map

FileDownload / File: emd_21227.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationBG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.03 Å/pix.
x 288 pix.
= 296.64 Å		1.03 Å/pix.
x 288 pix.
= 296.64 Å		1.03 Å/pix.
x 288 pix.
= 296.64 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.03 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.05 / Movie #1: 0.05
Minimum - Maximum-0.17423007 - 0.30481818
Average (Standard dev.)0.00041388324 (±0.009586524)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions288288288
Spacing288288288
CellA=B=C: 296.63998 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.031.031.03
M x/y/z288288288
origin x/y/z0.0000.0000.000
length x/y/z296.640296.640296.640
α/β/γ90.00090.00090.000
start NX/NY/NZ-2141-44
NX/NY/NZ1079792
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS288288288
D min/max/mean-0.1740.3050.000

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Supplemental data

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Mask #1

Fileemd_21227_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R

Fileemd_21227_half_map_1.map
AnnotationBG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R

Fileemd_21227_half_map_2.map
AnnotationBG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R

EntireName: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
Components
  • Complex: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
    • Protein or peptide: Envelope glycoprotein gp160
    • Protein or peptide: BG505 SOSIPv5.2 gp41
    • Protein or peptide: RM19R Kappa Light Chain
    • Protein or peptide: RM19R Heavy Chain
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R

SupramoleculeName: BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Source (natural)Organism: Human immunodeficiency virus 1

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Macromolecule #1: Envelope glycoprotein gp160

MacromoleculeName: Envelope glycoprotein gp160 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1
Molecular weightTheoretical: 53.265309 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: AENLWVTVYY GVPVWKDAET TLFCASDAKA YETKKHNVWA THCCVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHTDIIS LWDQSLKPC VKLTPLCVTL QCTNVTNNIT DDMRGELKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT ...String:
AENLWVTVYY GVPVWKDAET TLFCASDAKA YETKKHNVWA THCCVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHTDIIS LWDQSLKPC VKLTPLCVTL QCTNVTNNIT DDMRGELKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT SAITQACPKV SFEPIPIHYC APAGFAILKC KDKKFNGTGP CTNVSTVQCT HGIKPVVSTQ LLLNGSLAEE EV IIRSENI TNNAKNILVQ LNESVQINCT RPNNNTRKSI RIGPGQWFYA TGDIIGDIRQ AHCNVSKATW NETLGKVVKQ LRK HFGNNT IIRFANSSGG DLEVTTHSFN CGGEFFYCNT SGLFNSTWIS NTSVQGSNST GSNDSITLPC RIKQIINMWQ RIGQ AMYAP PIQGVIRCVS NITGLILTRD GGSTNSTTET FRPGGGDMRD NWRSELYKYK VVKIEPLGVA PTRCKRRVVG

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Macromolecule #2: BG505 SOSIPv5.2 gp41

MacromoleculeName: BG505 SOSIPv5.2 gp41 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1
Molecular weightTheoretical: 17.178549 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
AVGIGAVFLG FLGAAGSTMG AASMTLTVQA RNLLSGIVQQ QSNLLRAPEC QQHLLKLTVW GIKQLQARVL AVERYLRDQQ LLGIWGCSG KLICCTNVPW NSSWSNRNLS EIWDNMTWLQ WDKEISNYTQ IIYGLLEESQ NQQEKNEQDL LALD

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Macromolecule #3: RM19R Kappa Light Chain

MacromoleculeName: RM19R Kappa Light Chain / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Macaca mulatta (Rhesus monkey)
Molecular weightTheoretical: 11.808134 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
AIRMTQSPAI LSLSPGERAT LSCRASQSVD SRLAWYQQKP GQSPRLLIYD VSSRATGIPD RFSGSGSGTE FTLTISSLEP EDVAVYFCH QENDWPWTFG QGTKVEIK

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Macromolecule #4: RM19R Heavy Chain

MacromoleculeName: RM19R Heavy Chain / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Macaca mulatta (Rhesus monkey)
Molecular weightTheoretical: 13.268667 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLVESGPG LVRPSETLSL TCAVSGDSIS TNNGWSWIRQ TPGKGLEWIG YINGRSGSTR YNPSLQSRVT ISTDTSGNQF SLKVNSVTA ADTAKYYCAF FWSTYYKRFD VWGPGVRVTV SS

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Macromolecule #8: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 8 / Number of copies: 39 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

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

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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

BufferpH: 7.4
VitrificationCryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number real images: 1247 / Average exposure time: 12.5 sec. / Average electron dose: 67.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Point group: C3 (3 fold cyclic) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 191556
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: FLEXIBLE FIT
Output model

PDB-6vkn:
BG505 SOSIP.v5.2.N241.N289 in complex with rhesus macaque Fab RM19R

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