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- EMDB-28945: HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex w... -

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Entry
Database: EMDB / ID: EMD-28945
TitleHIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex with V3-glycan polyclonal Fab isolated from immunized wild type mice, and NHP monoclonal Fab RM20A3
Map datasharpened map
Sample
  • Complex: HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex with V3-glycan polyclonal Fab isolated from immunized wild type mice, and NHP monoclonal Fab RM20A3
    • Protein or peptide: BG505_MD64_N332-GT5 gp120
    • Protein or peptide: RM20A3 Fab Heavy Chain
    • Protein or peptide: RM20A3 Fab Light Chain
    • Protein or peptide: BG505_MD64_N332-GT5 gp41
    • Protein or peptide: V3-glycan epitope polyclonal Fab heavy chain
    • Protein or peptide: V3-glycan epitope polyclonal Fab light chain
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsmouse antibody / germline targeting / HIV-1 / vaccine design / polyclonal / VIRAL PROTEIN-IMMUNE SYSTEM complex
Biological speciesMus musculus (house mouse) / synthetic construct (others) / Macaca mulatta (Rhesus monkey)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.1 Å
AuthorsOzorowski G / 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)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
DepositionNov 23, 2022-
Header (metadata) releaseMay 15, 2024-
Map releaseMay 15, 2024-
UpdateMay 21, 2025-
Current statusMay 21, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_28945.png

Downloads & links

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Map

FileDownload / File: emd_28945.map.gz / Format: CCP4 / Size: 274.6 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.)
1.05 Å/pix.
x 416 pix.
= 435.011 Å		1.05 Å/pix.
x 416 pix.
= 435.011 Å		1.05 Å/pix.
x 416 pix.
= 435.011 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.0457 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.13
Minimum - Maximum-0.28813335 - 0.6358233
Average (Standard dev.)0.00057503924 (±0.021813707)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions416416416
Spacing416416416
CellA=B=C: 435.01117 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_28945_msk_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: half map A

Fileemd_28945_half_map_1.map
Annotationhalf map A
Projections & Slices
AxesZYX

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Density Histograms

Histogram

Histogram (log scale)

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Half map: half map B

Fileemd_28945_half_map_2.map
Annotationhalf map B
Projections & Slices
AxesZYX

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Sample components

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Entire : HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex w...

EntireName: HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex with V3-glycan polyclonal Fab isolated from immunized wild type mice, and NHP monoclonal Fab RM20A3
Components
  • Complex: HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex with V3-glycan polyclonal Fab isolated from immunized wild type mice, and NHP monoclonal Fab RM20A3
    • Protein or peptide: BG505_MD64_N332-GT5 gp120
    • Protein or peptide: RM20A3 Fab Heavy Chain
    • Protein or peptide: RM20A3 Fab Light Chain
    • Protein or peptide: BG505_MD64_N332-GT5 gp41
    • Protein or peptide: V3-glycan epitope polyclonal Fab heavy chain
    • Protein or peptide: V3-glycan epitope polyclonal Fab light chain
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex w...

SupramoleculeName: HIV Env germline targeting BG505_MD64_N332-GT5 SOSIP in complex with V3-glycan polyclonal Fab isolated from immunized wild type mice, and NHP monoclonal Fab RM20A3
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Mus musculus (house mouse)

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Macromolecule #1: BG505_MD64_N332-GT5 gp120

MacromoleculeName: BG505_MD64_N332-GT5 gp120 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 54.236801 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: AENLWVTVYY GVPVWKDAET TLFCASDAKA YETEKHNVWA THACVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHEDIIS LWDQSLKPC VKLTPLCVTL QCTNYAPKLR SMMRGEIKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT ...String:
AENLWVTVYY GVPVWKDAET TLFCASDAKA YETEKHNVWA THACVPTDPN PQEIHLENVT EEFNMWKNNM VEQMHEDIIS LWDQSLKPC VKLTPLCVTL QCTNYAPKLR SMMRGEIKNC SFNMTTELRD KKQKVYSLFY RLDVVQINEN QGNRSNNSNK E YRLINCNT SAITQACPKV SFEPIPIHYC APAGFAILKC KDKKFNGTGP CPSVSTVQCT HGIKPVVSTQ LLLNGSLAEE EV IIRSENI TNNAKNILVQ LNTPVQINCT RPSNNTVKSI RIGPGQAFYY FGDVLGHVRM AHCNISKATW NETLGKVVKQ LRK HFGNNT IIRFAQSSGG DLEVTTHSFN CGGEFFYCNT SGLFNSTWIS NTSVQGSNST GSNDSLILPC WIKQIINMWQ RIGQ AMYAP PIQGVIRCVS NITGLILTRD GGSTNSTTET FRPGGGDMRD NWRSELYKYK VVKIEPLGVA PTRCKRRVVG RRRRR R

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Macromolecule #2: RM20A3 Fab Heavy Chain

MacromoleculeName: RM20A3 Fab Heavy Chain / type: protein_or_peptide / ID: 2 / 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 #3: RM20A3 Fab Light Chain

MacromoleculeName: RM20A3 Fab Light Chain / type: protein_or_peptide / ID: 3 / 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 #4: BG505_MD64_N332-GT5 gp41

MacromoleculeName: BG505_MD64_N332-GT5 gp41 / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 18.250541 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
AVGIGAVSLG FLGAAGSTMG AASMTLTVQA RNLLSGIVQQ QSNLLRAPEP QQHLLKDTHW GIKQLQARVL AVEHYLRDQQ LLGIWGCSG KLICCTNVPW NSSWSNRNLS EIWDNMTWLQ WDKEISNYTQ IIYGLLEESQ NQQEKNEQDL LALDGTKHHH H HH

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Macromolecule #5: V3-glycan epitope polyclonal Fab heavy chain

MacromoleculeName: V3-glycan epitope polyclonal Fab heavy chain / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 9.634868 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)

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Macromolecule #6: V3-glycan epitope polyclonal Fab light chain

MacromoleculeName: V3-glycan epitope polyclonal Fab light chain / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 9.379553 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)

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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: 42 / 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

Concentration7.0 mg/mL
BufferpH: 7.4
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING
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: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.7000000000000001 µm / Nominal magnification: 190000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER

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Image processing

CTF correctionSoftware - Name: cryoSPARC (ver. 3.2) / Software - details: Patch CTF / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

4zmj

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 4.1 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.2) / Software - details: Local Refinement / Number images used: 11058
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final 3D classificationSoftware - Name: RELION (ver. 3.1)
Details: focused classifications over Fab density with skip align
FSC plot (resolution estimation)

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