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- EMDB-7516: BG505 SOSIP in complex with sCD4, 17b, 8ANC195 -

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Basic information

Entry
Database: EMDB / ID: EMD-7516
TitleBG505 SOSIP in complex with sCD4, 17b, 8ANC195
Map datacryoEM map of BG505 SOSIP in complex with sCD4, 8ANC195, 17b
Sample
  • Complex: BG505 SOSIP in complex with sCD4, 17b, 8ANC195
    • Protein or peptide: Envelope glycoprotein gp160
    • Protein or peptide: Envelope glycoprotein gp160
    • Protein or peptide: T-cell surface glycoprotein CD4
    • Protein or peptide: 17b Fab light chain
    • Protein or peptide: 17b Fab heavy chain
    • Protein or peptide: 8ANC195 Fab heavy chain
    • Protein or peptide: 8ANC195 Fab light chain
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsHIV-1 Env / VIRAL PROTEIN
Function / homology
Function and homology information


helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / response to methamphetamine hydrochloride / maintenance of protein location in cell / cellular response to ionomycin / T cell selection / MHC class II protein binding / positive regulation of kinase activity / interleukin-15-mediated signaling pathway ...helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / response to methamphetamine hydrochloride / maintenance of protein location in cell / cellular response to ionomycin / T cell selection / MHC class II protein binding / positive regulation of kinase activity / interleukin-15-mediated signaling pathway / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of monocyte differentiation / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / response to vitamin D / extracellular matrix structural constituent / Other interleukin signaling / T cell receptor complex / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / positive regulation of protein kinase activity / regulation of calcium ion transport / positive regulation of calcium ion transport into cytosol / macrophage differentiation / Generation of second messenger molecules / immunoglobulin binding / T cell differentiation / Co-inhibition by PD-1 / Binding and entry of HIV virion / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of T cell proliferation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / cell surface receptor protein tyrosine kinase signaling pathway / protein tyrosine kinase binding / host cell endosome membrane / Vpu mediated degradation of CD4 / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / positive regulation of protein phosphorylation / MHC class II protein complex binding / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / response to estradiol / signaling receptor activity / Clathrin-mediated endocytosis / virus receptor activity / response to ethanol / defense response to Gram-negative bacterium / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of viral entry into host cell / early endosome / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of canonical NF-kappaB signal transduction / cell adhesion / positive regulation of MAPK cascade / viral protein processing / immune response / membrane raft / endoplasmic reticulum lumen / fusion of virus membrane with host plasma membrane / external side of plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / lipid binding / symbiont entry into host cell / endoplasmic reticulum membrane / protein kinase binding / positive regulation of DNA-templated transcription / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / identical protein binding / membrane / plasma membrane
Similarity search - Function
CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 ...CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
T-cell surface glycoprotein CD4 / Envelope glycoprotein gp160 / Envelope glycoprotein gp160
Similarity search - Component
Biological speciesHuman immunodeficiency virus 1 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.54 Å
AuthorsWang H / Bjorkman PJ
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)HIVRAD P01 AI100148 United States
CitationJournal: Cell Host Microbe / Year: 2018
Title: Partially Open HIV-1 Envelope Structures Exhibit Conformational Changes Relevant for Coreceptor Binding and Fusion.
Authors: Haoqing Wang / Christopher O Barnes / Zhi Yang / Michel C Nussenzweig / Pamela J Bjorkman /
Abstract: HIV-1 Env, a trimer of gp120-gp41 heterodimers, mediates membrane fusion after binding host receptor CD4. Receptor binding displaces V1V2 loops from Env's apex, allowing coreceptor binding and ...HIV-1 Env, a trimer of gp120-gp41 heterodimers, mediates membrane fusion after binding host receptor CD4. Receptor binding displaces V1V2 loops from Env's apex, allowing coreceptor binding and opening Env to enable gp41-mediated fusion. We present 3.54 Å and 4.06 Å cryoelectron microscopy structures of partially open soluble native-like Env trimers (SOSIPs) bound to CD4. One structure, a complex with a coreceptor-mimicking antibody that binds both CD4 and gp120, stabilizes the displaced V1V2 and reveals its structure. Comparing partially and fully open Envs with closed Envs shows that gp41 rearrangements are independent of the CD4-induced rearrangements that result in V1V2 displacement and formation of a 4-stranded bridging sheet. These findings suggest ordered conformational changes before coreceptor binding: (1) gp120 opening inducing side-chain rearrangements and a compact gp41 central helix conformation, and (2) 4-stranded bridging-sheet formation and V1V2 displacement. These analyses illuminate potential receptor-induced Env changes and inform design of therapeutics disrupting viral entry.
History
DepositionMar 2, 2018-
Header (metadata) releaseMay 30, 2018-
Map releaseOct 17, 2018-
UpdateMay 14, 2025-
Current statusMay 14, 2025Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0386
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.0386
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6cm3
  • Surface level: 0.0386
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_7516.png

Downloads & links

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Map

FileDownload / File: emd_7516.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationcryoEM map of BG505 SOSIP in complex with sCD4, 8ANC195, 17b
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.31 Å/pix.
x 300 pix.
= 393. Å		1.31 Å/pix.
x 300 pix.
= 393. Å		1.31 Å/pix.
x 300 pix.
= 393. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.31 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0386 / Movie #1: 0.0386
Minimum - Maximum-0.14908834 - 0.27001765
Average (Standard dev.)0.0003940204 (±0.0054400703)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 392.99997 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.311.311.31
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z393.000393.000393.000
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ450450450
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.1490.2700.000

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Supplemental data

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Sample components

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Entire : BG505 SOSIP in complex with sCD4, 17b, 8ANC195

EntireName: BG505 SOSIP in complex with sCD4, 17b, 8ANC195
Components
  • Complex: BG505 SOSIP in complex with sCD4, 17b, 8ANC195
    • Protein or peptide: Envelope glycoprotein gp160
    • Protein or peptide: Envelope glycoprotein gp160
    • Protein or peptide: T-cell surface glycoprotein CD4
    • Protein or peptide: 17b Fab light chain
    • Protein or peptide: 17b Fab heavy chain
    • Protein or peptide: 8ANC195 Fab heavy chain
    • Protein or peptide: 8ANC195 Fab light chain
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: BG505 SOSIP in complex with sCD4, 17b, 8ANC195

SupramoleculeName: BG505 SOSIP in complex with sCD4, 17b, 8ANC195 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#7
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: 17.146482 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
AVGIGAVFLG FLGAAGSTMG AASMTLTVQA RNLLSGIVQQ QSNLLRAPEA QQHLLKLTVW GIKQLQARVL AVERYLRDQQ LLGIWGCSG KLICCTNVPW NSSWSNRNLS EIWDNMTWLQ WDKEISNYTQ IIYGLLEESQ NQQEKNEQDL LALD

UniProtKB: Envelope glycoprotein gp160

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Macromolecule #2: Envelope glycoprotein gp160

MacromoleculeName: Envelope glycoprotein gp160 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human immunodeficiency virus 1
Molecular weightTheoretical: 54.064277 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 SAITQACPKV 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 AMYAP PIQGVIRCVS NITGLILTRD GGSTNSTTET FRPGGGDMRD NWRSELYKYK VVKIEPLGVA PTRCKRRVVG RRRRR R

UniProtKB: Envelope glycoprotein gp160

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Macromolecule #3: T-cell surface glycoprotein CD4

MacromoleculeName: T-cell surface glycoprotein CD4 / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 21.47235 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: KKVVLGKKGD TVELTCTASQ KKSIQFHWKN SNQIKILGNQ GSFLTKGPSK LNDRADSRRS LWDQGNFPLI IKNLKIEDSD TYICEVEDQ KEEVQLLVFG LTANSDTHLL QGQSLTLTLE SPPGSSPSVQ CRSPRGKNIQ GGKTLSVSQL ELQDSGTWTC T VLQNQKKV ...String:
KKVVLGKKGD TVELTCTASQ KKSIQFHWKN SNQIKILGNQ GSFLTKGPSK LNDRADSRRS LWDQGNFPLI IKNLKIEDSD TYICEVEDQ KEEVQLLVFG LTANSDTHLL QGQSLTLTLE SPPGSSPSVQ CRSPRGKNIQ GGKTLSVSQL ELQDSGTWTC T VLQNQKKV EFKIDIVVLA FQKAIDGRHH HHHH

UniProtKB: T-cell surface glycoprotein CD4

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Macromolecule #4: 17b Fab light chain

MacromoleculeName: 17b Fab light chain / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.399898 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: DIVMTQSPAT LSVSPGERAT LSCRASESVS SDLAWYQQKP GQAPRLLIYG ASTRATGVPA RFSGSGSGAE FTLTISSLQS EDFAVYYCQ QYNNWPPRYT FGQGTRLEIK RTVAAPSVFI FPPSDEQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ ...String:
DIVMTQSPAT LSVSPGERAT LSCRASESVS SDLAWYQQKP GQAPRLLIYG ASTRATGVPA RFSGSGSGAE FTLTISSLQS EDFAVYYCQ QYNNWPPRYT FGQGTRLEIK RTVAAPSVFI FPPSDEQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ DSKDSTYSLS STLTLSKADY EKHKVYACEV THQGLSSPVT KSFNRG

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Macromolecule #5: 17b Fab heavy chain

MacromoleculeName: 17b Fab heavy chain / type: protein_or_peptide / ID: 5 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.457387 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: EVQLVESGAE VKKPGSSVKV SCKASGDTFI RYSFTWVRQA PGQGLEWMGR IITILDVAHY APHLQGRVTI TADKSTSTVY LELRNLRSD DTAVYFCAGV YEGEADEGEY DNNGFLKHWG QGTLVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS ...String:
EVQLVESGAE VKKPGSSVKV SCKASGDTFI RYSFTWVRQA PGQGLEWMGR IITILDVAHY APHLQGRVTI TADKSTSTVY LELRNLRSD DTAVYFCAGV YEGEADEGEY DNNGFLKHWG QGTLVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS WNSGALTSGV HTFPAVLQSS GLYSLSSVVT VPSSSLGTQT YICNVNHKPS NTKVDKKVEP K

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Macromolecule #6: 8ANC195 Fab heavy chain

MacromoleculeName: 8ANC195 Fab heavy chain / type: protein_or_peptide / ID: 6 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 26.12527 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: QIHLVQSGTE VKKPGSSVTV SCKAYGVNTF GLYAVNWVRQ APGQSLEYIG QIWRWKSSAS HHFRGRVLIS AVDLTGSSPP ISSLEIKNL TSDDTAVYFC TTTSTYDKWS GLHHDGVMAF SSWGQGTLIS VSAASTKGPS VFPLAPSSKS TSGGTAALGC L VKDYFPEP ...String:
QIHLVQSGTE VKKPGSSVTV SCKAYGVNTF GLYAVNWVRQ APGQSLEYIG QIWRWKSSAS HHFRGRVLIS AVDLTGSSPP ISSLEIKNL TSDDTAVYFC TTTSTYDKWS GLHHDGVMAF SSWGQGTLIS VSAASTKGPS VFPLAPSSKS TSGGTAALGC L VKDYFPEP VTVSWNSGAL TSGVHTFPAV LQSSGLYSLS SVVTVPSSSL GTQTYICNVN HKPSNTKVDK RVEPKSCDKT HH HHHH

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Macromolecule #7: 8ANC195 Fab light chain

MacromoleculeName: 8ANC195 Fab light chain / type: protein_or_peptide / ID: 7 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.401984 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: DIQMTQSPST LSASIGDTVR ISCRASQSIT GNWVAWYQQR PGKAPRLLIY RGAALLGGVP SRFSGSAAGT DFTLTIGNLQ AEDFGTFYC QQYDTYPGTF GQGTKVEVKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD ...String:
DIQMTQSPST LSASIGDTVR ISCRASQSIT GNWVAWYQQR PGKAPRLLIY RGAALLGGVP SRFSGSAAGT DFTLTIGNLQ AEDFGTFYC QQYDTYPGTF GQGTKVEVKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD SKDSTYSLSS TLTLSKADYE KHKVYACEVT HQGLSSPVTK SFNRGEC

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Macromolecule #12: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 12 / Number of copies: 18 / 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: 8
VitrificationCryogen name: ETHANE-PROPANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 87.5 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: EMDB MAP
Final reconstructionApplied symmetry - Point group: C3 (3 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 3.54 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 143099
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING
FSC plot (resolution estimation)

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