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 7L6O | pdb_00007l6o

Cryo-EM structure of HIV-1 Env CH848.3.D0949.10.17chim.6R.DS.SOSIP.664


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 7L6O

This is version 1.3 of the entry. See complete history. 

Literature

Fab-dimerized glycan-reactive antibodies are a structural category of natural antibodies.

Williams, W.B., Meyerhoff, R.R., Edwards, R.J., Li, H., Manne, K., Nicely, N.I., Henderson, R., Zhou, Y., Janowska, K., Mansouri, K., Gobeil, S., Evangelous, T., Hora, B., Berry, M., Abuahmad, A.Y., Sprenz, J., Deyton, M., Stalls, V., Kopp, M., Hsu, A.L., Borgnia, M.J., Stewart-Jones, G.B.E., Lee, M.S., Bronkema, N., Moody, M.A., Wiehe, K., Bradley, T., Alam, S.M., Parks, R.J., Foulger, A., Oguin, T., Sempowski, G.D., Bonsignori, M., LaBranche, C.C., Montefiori, D.C., Seaman, M., Santra, S., Perfect, J., Francica, J.R., Lynn, G.M., Aussedat, B., Walkowicz, W.E., Laga, R., Kelsoe, G., Saunders, K.O., Fera, D., Kwong, P.D., Seder, R.A., Bartesaghi, A., Shaw, G.M., Acharya, P., Haynes, B.F.

(2021) Cell 184: 2955

  • DOI: https://doi.org/10.1016/j.cell.2021.04.042
  • Primary Citation Related Structures: 
    6VTU, 6XRJ, 7L02, 7L06, 7L09, 7L6M, 7L6O, 7LU9, 7LUA

  • PubMed Abstract: 

    Natural antibodies (Abs) can target host glycans on the surface of pathogens. We studied the evolution of glycan-reactive B cells of rhesus macaques and humans using glycosylated HIV-1 envelope (Env) as a model antigen. 2G12 is a broadly neutralizing Ab (bnAb) that targets a conserved glycan patch on Env of geographically diverse HIV-1 strains using a unique heavy-chain (V H ) domain-swapped architecture that results in fragment antigen-binding (Fab) dimerization. Here, we describe HIV-1 Env Fab-dimerized glycan (FDG)-reactive bnAbs without V H -swapped domains from simian-human immunodeficiency virus (SHIV)-infected macaques. FDG Abs also recognized cell-surface glycans on diverse pathogens, including yeast and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike. FDG precursors were expanded by glycan-bearing immunogens in macaques and were abundant in HIV-1-naive humans. Moreover, FDG precursors were predominately mutated IgM + IgD + CD27 + , thus suggesting that they originated from a pool of antigen-experienced IgM + or marginal zone B cells.


  • Organizational Affiliation: 
    • Duke Human Vaccine Institute, Durham, NC 27710, USA; Department of Medicine, Duke University, Durham, NC 27710, USA. Electronic address: wilton.williams@duke.edu.

Macromolecule Content 

  • Total Structure Weight: 232.29 kDa 
  • Atom Count: 15,672 
  • Modeled Residue Count: 1,776 
  • Deposited Residue Count: 1,836 
  • Unique protein chains: 2

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
CH848.3.D0949.10.17chim.6R.DS.SOSIP.664 - gp120A [auth a],
C [auth c],
E [auth e]
466Human immunodeficiency virus 1Mutation(s): 8 
Gene Names: env
UniProt
Find proteins for A0A1W6IPB2 (Human immunodeficiency virus type 1)
Explore A0A1W6IPB2 
Go to UniProtKB:  A0A1W6IPB2
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A1W6IPB2
Glycosylation
Glycosylation Sites: 17
Sequence Annotations
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Reference Sequence
Find similar proteins by:|  3D Structure
Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
CH848.3.D0949.10.17chim.6R.DS.SOSIP.664 - gp41B [auth b],
D [auth d],
F [auth f]
146Human immunodeficiency virus 1Mutation(s): 0 
UniProt
Find proteins for Q2N0S6 (Human immunodeficiency virus type 1)
Explore Q2N0S6 
Go to UniProtKB:  Q2N0S6
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2N0S6
Glycosylation
Glycosylation Sites: 2
Sequence Annotations
Expand
Reference Sequence

Oligosaccharides

Help  
Entity ID: 3
MoleculeChains Length2D Diagram GlycosylationD Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
BA [auth V],
CA [auth W],
EA [auth Y],
FA [auth Z],
G [auth A],
BA [auth V],
CA [auth W],
EA [auth Y],
FA [auth Z],
G [auth A],
GA [auth g],
H [auth B],
HA [auth h],
J [auth D],
JA [auth j],
L [auth F],
LA [auth l],
M [auth G],
MA [auth m],
O [auth I],
OA [auth o],
P [auth J],
PA [auth p],
R [auth L],
RA [auth r],
S [auth M],
SA [auth s],
T [auth N],
U [auth O],
W [auth Q],
Y [auth S],
Z [auth T]
3O-Glycosylation, N-Glycosylation
Glycosylation Resources
GlyTouCan: G15407YE
GlyCosmos: G15407YE
GlyGen: G15407YE
Entity ID: 4
MoleculeChains Length2D Diagram GlycosylationD Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
AA [auth U],
DA [auth X],
I [auth C],
IA [auth i],
N [auth H],
AA [auth U],
DA [auth X],
I [auth C],
IA [auth i],
N [auth H],
NA [auth n],
Q [auth K],
QA [auth q],
V [auth P]
2N-Glycosylation
Glycosylation Resources
GlyTouCan: G42666HT
GlyCosmos: G42666HT
GlyGen: G42666HT
Entity ID: 5
MoleculeChains Length2D Diagram GlycosylationD Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseK [auth E],
KA [auth k],
X [auth R]
5N-Glycosylation
Glycosylation Resources
GlyTouCan: G22768VO
GlyCosmos: G22768VO
GlyGen: G22768VO

Small Molecules

Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG

Query on NAG



Download:Ideal Coordinates CCD File
AB [auth c]
BB [auth c]
CB [auth c]
DB [auth d]
EB [auth d]
AB [auth c],
BB [auth c],
CB [auth c],
DB [auth d],
EB [auth d],
FB [auth e],
GB [auth e],
HB [auth e],
IB [auth e],
JB [auth f],
KB [auth f],
TA [auth a],
UA [auth a],
VA [auth a],
WA [auth a],
XA [auth b],
YA [auth b],
ZA [auth c]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTCoot
MODEL REFINEMENTPHENIX
MODEL REFINEMENTISOLDE

Structure Validation

View Full Validation Report



Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI145687

Revision History  (Full details and data files)

  • Version 1.0: 2021-04-14
    Type: Initial release
  • Version 1.1: 2021-06-02
    Changes: Database references
  • Version 1.2: 2021-06-09
    Changes: Database references
  • Version 1.3: 2024-11-20
    Changes: Data collection, Database references, Refinement description, Structure summary