1VPU

NMR SOLUTION STRUCTURE OF THE HIV-1 VPU CYTOPLASMIC DOMAIN, 9 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 25 
  • Conformers Submitted: 
  • Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 

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This is version 1.2 of the entry. See complete history


Literature

Secondary structure and tertiary fold of the human immunodeficiency virus protein U (Vpu) cytoplasmic domain in solution.

Willbold, D.Hoffmann, S.Rosch, P.

(1997) Eur J Biochem 245: 581-588

  • DOI: 10.1111/j.1432-1033.1997.t01-1-00581.x
  • Primary Citation of Related Structures:  
    1VPU

  • PubMed Abstract: 
  • The human immunodeficiency virus type 1 Vpu protein enhances virus particle release from infected cells, decreases the tendency of syncytia formation and induces degradation of human CD4 receptor. It is known that the cytoplasmic part of Vpu is responsible for direct interaction to and degradation of CD4 ...

    The human immunodeficiency virus type 1 Vpu protein enhances virus particle release from infected cells, decreases the tendency of syncytia formation and induces degradation of human CD4 receptor. It is known that the cytoplasmic part of Vpu is responsible for direct interaction to and degradation of CD4. The tertiary fold of the Vpu cytoplasmic domain in aqueous solution was determined employing NMR spectroscopy and molecular-dynamics simulated-annealing protocols. We found a very well defined amphipathic alpha-helix in the membrane proximal part (40-50), a less well defined helix (60-68), and a short alpha-helix at the C-terminus (75-79). We further determined the overall tertiary structure based on long-range nuclear Overhauser enhancement effects. Correlation of results from mutation experiments of Vpu and the structure data is discussed.


    Organizational Affiliation

    Lehrstuhl für Biopolymere, Universität Bayreuth, Germany. Dieter.Willbold@uni-bayreuth.de



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VPU PROTEINA45Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: SYNTHETIC GENE
Membrane Entity: Yes 
UniProt
Find proteins for P19554 (Human immunodeficiency virus type 1 group M subtype B (isolate SF162))
Explore P19554 
Go to UniProtKB:  P19554
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 25 
  • Conformers Submitted: 
  • Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 
  • OLDERADO: 1VPU Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-05-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance