6UJV

Model of the HIV-1 gp41 membrane-proximal external region, transmembrane domain and cytoplasmic tail (LLP2)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 150 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural basis of transmembrane coupling of the HIV-1 envelope glycoprotein.

Piai, A.Fu, Q.Cai, Y.Ghantous, F.Xiao, T.Shaik, M.M.Peng, H.Rits-Volloch, S.Chen, W.Seaman, M.S.Chen, B.Chou, J.J.

(2020) Nat Commun 11: 2317-2317

  • DOI: https://doi.org/10.1038/s41467-020-16165-0
  • Primary Citation of Related Structures:  
    6UJU, 6UJV

  • PubMed Abstract: 

    The prefusion conformation of HIV-1 envelope protein (Env) is recognized by most broadly neutralizing antibodies (bnAbs). Studies showed that alterations of its membrane-related components, including the transmembrane domain (TMD) and cytoplasmic tail (CT), can reshape the antigenic structure of the Env ectodomain. Using nuclear magnetic resonance (NMR) spectroscopy, we determine the structure of an Env segment encompassing the TMD and a large portion of the CT in bicelles. The structure reveals that the CT folds into amphipathic helices that wrap around the C-terminal end of the TMD, thereby forming a support baseplate for the rest of Env. NMR dynamics measurements provide evidences of dynamic coupling across the TMD between the ectodomain and CT. Pseudovirus-based neutralization assays suggest that CT-TMD interaction preferentially affects antigenic structure near the apex of the Env trimer. These results explain why the CT can modulate the Env antigenic properties and may facilitate HIV-1 Env-based vaccine design.


  • Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 250 Longwood Avenue, Boston, MA, 02115, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Envelope glycoprotein GP41
A, B, C
129Human immunodeficiency virus 1Mutation(s): 1 
Gene Names: env
Membrane Entity: Yes 
UniProt
Find proteins for P04578 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2))
Explore P04578 
Go to UniProtKB:  P04578
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04578
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 150 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

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 StatesAI127193

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-13
    Type: Initial release
  • Version 1.1: 2020-05-20
    Changes: Database references
  • Version 1.2: 2022-03-16
    Changes: Author supporting evidence, Database references
  • Version 1.3: 2023-06-14
    Changes: Other
  • Version 1.4: 2024-05-15
    Changes: Data collection, Database references