6MCO

Crystal structure of the B41 SOSIP.664 Env trimer with PGT124 and 35O22 Fabs, in P23 space group

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.53 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.306 
  • R-Value Observed: 0.307 

wwPDB Validation 3D Report Full Report



Literature

Capturing the inherent structural dynamics of the HIV-1 envelope glycoprotein fusion peptide.

Kumar, S., Sarkar, A., Pugach, P., Sanders, R.W., Moore, J.P., Ward, A.B., Wilson, I.A.

(2019) Nat Commun 10: 763-763

  • DOI: 10.1038/s41467-019-08738-5
  • Structures With Same Primary Citation

  • PubMed Abstract: 

    • The N-terminal fusion peptide (FP) of the human immunodeficiency virus (HIV)-1 envelope glycoprotein (Env) gp41 subunit plays a critical role in cell entry. However, capturing the structural flexibility in the unbound FP is challenging in the native ...

    The N-terminal fusion peptide (FP) of the human immunodeficiency virus (HIV)-1 envelope glycoprotein (Env) gp41 subunit plays a critical role in cell entry. However, capturing the structural flexibility in the unbound FP is challenging in the native Env trimer. Here, FP conformational isomerism is observed in two crystal structures of a soluble clade B transmitted/founder virus B41 SOSIP.664 Env with broadly neutralizing antibodies (bNAbs) PGT124 and 35O22 to aid in crystallization and that are not specific for binding to the FP. Large rearrangements in the FP and fusion peptide proximal region occur around M530, which remains anchored in the tryptophan clasp (gp41 W623, W628, W631) in the B41 Env prefusion state. Further, we redesigned the FP at position 518 to reinstate the bNAb VRC34.01 epitope. These findings provide further structural evidence for the dynamic nature of the FP and how a bNAb epitope can be restored during vaccine design.

    Organizational Affiliation: 

    Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA. wilson@scripps.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transmembrane protein gp41
B
153Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
Find proteins for B3UES2 (Human immunodeficiency virus 1)
Go to UniProtKB:  B3UES2
Protein Feature View
  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
35O22 Fab heavy chain
D
243Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Surface protein gp120
G
482Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
Find proteins for B3UF58 (Human immunodeficiency virus 1)
Go to UniProtKB:  B3UF58
Protein Feature View
  • Reference Sequence

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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
PGT124 Fab heavy chain
H
236Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
35O22 Fab light chain
E
216Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
PGT124 Fab light chain
L
214Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG
Download CCD File 
B, D, G
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N		 Ligand Interaction
BMA
Query on BMA
Download CCD File 
B, D, G
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N		 Ligand Interaction
MAN
Query on MAN
Download CCD File 
B, D, G
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.53 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.306 
  • R-Value Observed: 0.307 
  • Space Group: P 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 212.326α = 90
b = 212.326β = 90
c = 212.326γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
HKL-2000data scaling
PHENIXmodel building
HKL-2000data reduction
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-02-27
    Type: Initial release