2MA9

HIV-1 Vif SOCS-box and Elongin BC solution structure


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Insight into the HIV-1 Vif SOCS-box-ElonginBC interaction.

Lu, Z.Bergeron, J.R.Atkinson, R.A.Schaller, T.Veselkov, D.A.Oregioni, A.Yang, Y.Matthews, S.J.Malim, M.H.Sanderson, M.R.

(2013) OPEN BIOLOGY 3: 130100-130100

  • DOI: 10.1098/rsob.130100

  • PubMed Abstract: 
  • The HIV-1 viral infectivity factor (Vif) neutralizes cell-encoded antiviral APOBEC3 proteins by recruiting a cellular ElonginB (EloB)/ElonginC (EloC)/Cullin5-containing ubiquitin ligase complex, resulting in APOBEC3 ubiquitination and proteolysis. Th ...

    The HIV-1 viral infectivity factor (Vif) neutralizes cell-encoded antiviral APOBEC3 proteins by recruiting a cellular ElonginB (EloB)/ElonginC (EloC)/Cullin5-containing ubiquitin ligase complex, resulting in APOBEC3 ubiquitination and proteolysis. The suppressors-of-cytokine-signalling-like domain (SOCS-box) of HIV-1 Vif is essential for E3 ligase engagement, and contains a BC box as well as an unusual proline-rich motif. Here, we report the NMR solution structure of the Vif SOCS-ElonginBC (EloBC) complex. In contrast to SOCS-boxes described in other proteins, the HIV-1 Vif SOCS-box contains only one α-helical domain followed by a β-sheet fold. The SOCS-box of Vif binds primarily to EloC by hydrophobic interactions. The functionally essential proline-rich motif mediates a direct but weak interaction with residues 101-104 of EloB, inducing a conformational change from an unstructured state to a structured state. The structure of the complex and biophysical studies provide detailed insight into the function of Vif's proline-rich motif and reveal novel dynamic information on the Vif-EloBC interaction.


    Organizational Affiliation

    Randall Division of Cell and Molecular Biophysics, King's College London, 3rd Floor, New Hunt's House, Guy's Campus, London Bridge, London SE1 1UL, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Virion infectivity factor
A
36Human immunodeficiency virus type 1 group M subtype BGene Names: vif
Find proteins for P12504 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P12504
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Transcription elongation factor B polypeptide 2
B
118Homo sapiensGene Names: TCEB2
Find proteins for Q15370 (Homo sapiens)
Go to UniProtKB:  Q15370
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Transcription elongation factor B polypeptide 1
C
91Homo sapiensGene Names: TCEB1
Find proteins for Q15369 (Homo sapiens)
Go to UniProtKB:  Q15369
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-12-11
    Type: Initial release
  • Version 1.1: 2016-04-27
    Type: Structure summary