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- EMDB-43190: HIV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_... -

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Basic information

Entry
Database: EMDB / ID: EMD-43190
TitleHIV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d77.5 mouse Fab and RM20A3 Fab
Map datasharpened map
Sample
  • Complex: IV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d77.5 mouse Fab and RM20A3 Fab
    • Protein or peptide: RM20A3 Fab heavy chain
    • Protein or peptide: RM20A3 Fab light chain
    • Protein or peptide: Envelope glycoprotein gp120
    • Protein or peptide: Transmembrane protein gp41
    • Protein or peptide: B16_d77.5 mouse Fab heavy chain Fv
    • Protein or peptide: B16_d77.5 mouse Fab light chain Fv
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsmouse antibody / germline targeting / HIV-1 / vaccine design / VIRAL PROTEIN / VIRAL 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 / Macaca mulatta (Rhesus monkey) / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsOzorowski G / Torres JL / Ward AB
Funding support United States, 2 items
OrganizationGrant numberCountry
Bill & Melinda Gates FoundationOPP1115782/INV-002916 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)UMI A1144462 United States
CitationJournal: Science / Year: 2024
Title: mRNA-LNP HIV-1 trimer boosters elicit precursors to broad neutralizing antibodies.
Authors: Zhenfei Xie / Ying-Cing Lin / Jon M Steichen / Gabriel Ozorowski / Sven Kratochvil / Rashmi Ray / Jonathan L Torres / Alessia Liguori / Oleksandr Kalyuzhniy / Xuesong Wang / John E Warner / ...Authors: Zhenfei Xie / Ying-Cing Lin / Jon M Steichen / Gabriel Ozorowski / Sven Kratochvil / Rashmi Ray / Jonathan L Torres / Alessia Liguori / Oleksandr Kalyuzhniy / Xuesong Wang / John E Warner / Stephanie R Weldon / Gordon A Dale / Kathrin H Kirsch / Usha Nair / Sabyasachi Baboo / Erik Georgeson / Yumiko Adachi / Michael Kubitz / Abigail M Jackson / Sara T Richey / Reid M Volk / Jeong Hyun Lee / Jolene K Diedrich / Thavaleak Prum / Samantha Falcone / Sunny Himansu / Andrea Carfi / John R Yates / James C Paulson / Devin Sok / Andrew B Ward / William R Schief / Facundo D Batista /
Abstract: Germline-targeting (GT) HIV vaccine strategies are predicated on deriving broadly neutralizing antibodies (bnAbs) through multiple boost immunogens. However, as the recruitment of memory B cells ...Germline-targeting (GT) HIV vaccine strategies are predicated on deriving broadly neutralizing antibodies (bnAbs) through multiple boost immunogens. However, as the recruitment of memory B cells (MBCs) to germinal centers (GCs) is inefficient and may be derailed by serum antibody-induced epitope masking, driving further B cell receptor (BCR) modification in GC-experienced B cells after boosting poses a challenge. Using humanized immunoglobulin knockin mice, we found that GT protein trimer immunogen N332-GT5 could prime inferred-germline precursors to the V3-glycan-targeted bnAb BG18 and that B cells primed by N332-GT5 were effectively boosted by either of two novel protein immunogens designed to have minimum cross-reactivity with the off-target V1-binding responses. The delivery of the prime and boost immunogens as messenger RNA lipid nanoparticles (mRNA-LNPs) generated long-lasting GCs, somatic hypermutation, and affinity maturation and may be an effective tool in HIV vaccine development.
History
DepositionDec 22, 2023-
Header (metadata) releaseMay 15, 2024-
Map releaseMay 15, 2024-
UpdateNov 13, 2024-
Current statusNov 13, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_43190.png

Downloads & links

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Map

FileDownload / File: emd_43190.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationsharpened map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.04 Å/pix.
x 400 pix.
= 417.6 Å		1.04 Å/pix.
x 400 pix.
= 417.6 Å		1.04 Å/pix.
x 400 pix.
= 417.6 Å

Surface

Projections

Slices (1/3)

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Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.044 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.15
Minimum - Maximum-0.5334893 - 0.9979694
Average (Standard dev.)0.00006571457 (±0.027427295)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 417.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_43190_msk_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Half map: half map A

Fileemd_43190_half_map_1.map
Annotationhalf map A
Projections & Slices
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Density Histograms

Histogram

Histogram (log scale)

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Half map: half map B

Fileemd_43190_half_map_2.map
Annotationhalf map B
Projections & Slices
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Histogram

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Sample components

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Entire : IV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d...

EntireName: IV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d77.5 mouse Fab and RM20A3 Fab
Components
  • Complex: IV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d77.5 mouse Fab and RM20A3 Fab
    • Protein or peptide: RM20A3 Fab heavy chain
    • Protein or peptide: RM20A3 Fab light chain
    • Protein or peptide: Envelope glycoprotein gp120
    • Protein or peptide: Transmembrane protein gp41
    • Protein or peptide: B16_d77.5 mouse Fab heavy chain Fv
    • Protein or peptide: B16_d77.5 mouse Fab light chain Fv
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: IV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d...

SupramoleculeName: IV Env BG505_MD39_B16 SOSIP boosting trimer in complex with B16_d77.5 mouse Fab and RM20A3 Fab
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Human immunodeficiency virus 1

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Macromolecule #1: RM20A3 Fab heavy chain

MacromoleculeName: RM20A3 Fab heavy chain / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Macaca mulatta (Rhesus monkey)
Molecular weightTheoretical: 13.511111 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLVETGGG LVQPGGSLKL SCRASGYTFS SFAMSWVRQA PGKGLEWVSL INDRGGLTFY VDSVKGRFTI SRDNSKNTLS LQMHSLRDG DTAVYYCATG GMSSALQSSK YYFDFWGQGA LVTVSS

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Macromolecule #2: RM20A3 Fab light chain

MacromoleculeName: RM20A3 Fab light chain / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Macaca mulatta (Rhesus monkey)
Molecular weightTheoretical: 13.5088 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
ALTQPPSVSG SPGQSVTISC TGTSSDIGSY NYVSWYQQHP GKAPKLMIYD VTQRPSGVSD RFSGSKSGNT ASLTISGLQA DDEADYYCS AYAGRQTFYI FGGGTRLTVL GQPKASPTVT LFPPSSEEL

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Macromolecule #3: Envelope glycoprotein gp120

MacromoleculeName: Envelope glycoprotein gp120 / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1
Molecular weightTheoretical: 54.221656 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: AENLWVTVYY GVPVWKDAET TLFCASDAKA YETEKHNVWA THACVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHEDIIS LWDQSLKPC VKLTPLCVTL QCTNYTEKLR SMMKGELKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT ...String:
AENLWVTVYY GVPVWKDAET TLFCASDAKA YETEKHNVWA THACVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHEDIIS LWDQSLKPC VKLTPLCVTL QCTNYTEKLR SMMKGELKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT SAITQACPKV SFEPIPIHYC APAGFAILKC KDKKFNGTGP CPSVSTVQCT HGIKPVVSTQ LLLNGSLAEE EV IIRSENI TNNAKNILVQ LNTPVQINCT RPNNNTVKSI RIGPGQAFYY TGDIIGHIRQ AHCNVSKATW NETLGKVVKQ LRK HFGNNT IIRFAQSSGG DLEVTTHSFN CGGEFFYCNT SGLFNSTWIS NTSVQGSNST GSNDSITLPC RIKQIINMWQ RIGQ AMYAP PIQGVIRCVS NITGLILTRD GGSTNSTTET FRPGGGDMRD NWRSELYKYK VVKIEPLGVA PTRCKRRVVG RRRRR R

UniProtKB: Envelope glycoprotein gp160

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Macromolecule #4: Transmembrane protein gp41

MacromoleculeName: Transmembrane protein gp41 / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1
Molecular weightTheoretical: 17.134324 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
AVGIGAVSLG FLGAAGSTMG AASMTLTVQA RNLLSGIVQQ QSNLLRAPEP QQHLLKDTHW GIKQLQARVL AVEHYLRDQQ LLGIWGCSG KLICCTNVPW NSSWSNRNLS EIWDNMTWLQ WDKEISNYTQ IIYGLLEESQ NQQEKNEQDL LALD

UniProtKB: Envelope glycoprotein gp160

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Macromolecule #5: B16_d77.5 mouse Fab heavy chain Fv

MacromoleculeName: B16_d77.5 mouse Fab heavy chain Fv / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 13.972703 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
QVQLQESGPG LVKPSETLSL TCAVSGGSIS SGHWWSWVRQ SPGKGLEWIG TIYHSGSANY NPSLKSRVTI SVDKSKNQFS LKLTSVTAA DTAVYFCARN AILIFGVIAF GEYYFCGMDV WGQGTTVTVS S

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Macromolecule #6: B16_d77.5 mouse Fab light chain Fv

MacromoleculeName: B16_d77.5 mouse Fab light chain Fv / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 12.012308 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
DIVLTQSPAS LAVSLGQRAT IFCRASDTVD ISGDSFMHWY QQKPGQPPNL LIYRASNLQS GIPARFSGSG SRADFTLTID PVEADDVAT YYCQQSSEDP LTFGAGTKLE LK

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Macromolecule #10: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 10 / Number of copies: 36 / 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

Concentration6.9 mg/mL
BufferpH: 7.4
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS GLACIOS
Image recordingFilm or detector model: TFS FALCON 4i (4k x 4k) / Average electron dose: 45.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 190000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN

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Image processing

Startup modelType of model: INSILICO MODEL / In silico model: ab initio reconstruction
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Software - details: local refinement / Number images used: 39822
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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