5JS9

Uncleaved prefusion optimized gp140 trimer with an engineered 8-residue HR1 turn bound to broadly neutralizing antibodies 8ANC195 and PGT128


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.92 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.284 
  • R-Value Observed: 0.288 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Uncleaved prefusion-optimized gp140 trimers derived from analysis of HIV-1 envelope metastability.

Kong, L.He, L.de Val, N.Vora, N.Morris, C.D.Azadnia, P.Sok, D.Zhou, B.Burton, D.R.Ward, A.B.Wilson, I.A.Zhu, J.

(2016) Nat Commun 7: 12040-12040

  • DOI: 10.1038/ncomms12040
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The trimeric HIV-1 envelope glycoprotein (Env) is critical for host immune recognition and neutralization. Despite advances in trimer design, the roots of Env trimer metastability remain elusive. Here we investigate the contribution of two Env region ...

    The trimeric HIV-1 envelope glycoprotein (Env) is critical for host immune recognition and neutralization. Despite advances in trimer design, the roots of Env trimer metastability remain elusive. Here we investigate the contribution of two Env regions to metastability. First, we computationally redesign a largely disordered bend in heptad region 1 (HR1) of SOSIP trimers that connects the long, central HR1 helix to the fusion peptide, substantially improving the yield of soluble, well-folded trimers. Structural and antigenic analyses of two distinct HR1 redesigns confirm that redesigned Env closely mimics the native, prefusion trimer with a more stable gp41. Next, we replace the cleavage site between gp120 and gp41 with various linkers in the context of an HR1 redesign. Electron microscopy reveals a potential fusion intermediate state for uncleaved trimers containing short but not long linkers. Together, these results outline a general approach for stabilization of Env trimers from diverse HIV-1 strains.


    Organizational Affiliation

    Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California 92037, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
broadly neutralizing antibody PGT128 light chain
B
211Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
gp120
C
480Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
Find proteins for Q2N0S6 (Human immunodeficiency virus 1)
Go to UniProtKB:  Q2N0S6
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
broadly neutralizing antibody 8ANC195 heavy chain
E
238Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
broadly neutralizing antibody 8ANC195 light chain
F
215Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
broadly neutralizing antibody PGT128 heavy chain
A
239Homo sapiensMutation(s): 0 
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
gp41
D
140Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
Find proteins for Q2N0S6 (Human immunodeficiency virus 1)
Go to UniProtKB:  Q2N0S6
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download CCD File 
C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
BMA
Query on BMA

Download CCD File 
C, D
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
MAN
Query on MAN

Download CCD File 
C, D
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.92 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.284 
  • R-Value Observed: 0.288 
  • Space Group: I 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 261.955α = 90
b = 261.955β = 90
c = 261.955γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2016-05-07 
  • Released Date: 2016-07-13 
  • Deposition Author(s): Kong, L., Wilson, I.A.

Revision History 

  • Version 1.0: 2016-07-13
    Type: Initial release
  • Version 1.1: 2018-03-21
    Changes: Derived calculations