Solid-state NMR structure of Vpu

Experimental Data Snapshot

  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structural determination of virus protein U from HIV-1 by NMR in membrane environments.

Zhang, H.Lin, E.C.Das, B.B.Tian, Y.Opella, S.J.

(2015) Biochim Biophys Acta 1848: 3007-3018

  • DOI: https://doi.org/10.1016/j.bbamem.2015.09.008
  • Primary Citation of Related Structures:  
    2N28, 2N29

  • PubMed Abstract: 

    Virus protein U (Vpu) from HIV-1, a small membrane protein composed of a transmembrane helical domain and two α-helices in an amphipathic cytoplasmic domain, down modulates several cellular proteins, including CD4, BST-2/CD317/tetherin, NTB-A, and CCR7. The interactions of Vpu with these proteins interfere with the immune system and enhance the release of newly synthesized virus particles. It is essential to characterize the structure and dynamics of Vpu in order to understand the mechanisms of the protein-protein interactions, and potentially to discover antiviral drugs. In this article, we describe investigations of the cytoplasmic domain of Vpu as well as full-length Vpu by NMR spectroscopy. These studies are complementary to earlier analysis of the transmembrane domain of Vpu. The results suggest that the two helices in the cytoplasmic domain form a U-shape. The length of the inter-helical loop in the cytoplasmic domain and the orientation of the third helix vary with the lipid composition, which demonstrate that the C-terminal helix is relatively flexible, providing accessibility for interaction partners.

  • Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0307.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein Vpu81Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: vpu
Membrane Entity: Yes 
Find proteins for P69699 (Human immunodeficiency virus type 1 group M subtype B (isolate BH10))
Explore P69699 
Go to UniProtKB:  P69699
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP69699
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-30
    Type: Initial release
  • Version 1.1: 2015-10-14
    Changes: Database references
  • Version 1.2: 2024-05-01
    Changes: Data collection, Database references