3RBB

HIV-1 NEF protein in complex with engineered HCK SH3 domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Conformation of the Dileucine-Based Sorting Motif in HIV-1 Nef Revealed by Intermolecular Domain Assembly.

Horenkamp, F.A.Breuer, S.Schulte, A.Lulf, S.Weyand, M.Saksela, K.Geyer, M.

(2011) Traffic 12: 867-877

  • DOI: 10.1111/j.1600-0854.2011.01205.x

  • PubMed Abstract: 
  • The human immunodeficiency virus 1 (HIV-1) Nef protein is a pathogenicity factor required for effective progression to AIDS, which modulates host cell signaling pathways and T-cell receptor internalization. We have determined the crystal structure of ...

    The human immunodeficiency virus 1 (HIV-1) Nef protein is a pathogenicity factor required for effective progression to AIDS, which modulates host cell signaling pathways and T-cell receptor internalization. We have determined the crystal structure of Nef, allele SF2, in complex with an engineered SH3 domain of human Hck showing unnaturally tight binding and inhibitory potential toward Nef. This complex provides the most complete Nef structure described today, and explains the structural basis of the high affinity of this interaction. Intriguingly, the 33-residue C-terminal flexible loop is resolved in the structure by its interactions with a highly conserved hydrophobic groove on the core domain of an adjacent Nef molecule. The loop mediates the interaction of Nef with the cellular adaptor protein machinery for the stimulated internalization of surface receptors. The endocytic dileucine-based sorting motif is exposed at the tip of the acidic loop, giving the myristoylated Nef protein a distinctly dipolar character. The intermolecular domain assembly of Nef provides insights into a possible regulation mechanism for cargo trafficking.


    Organizational Affiliation

    Abteilung Physikalische Biochemie, Max-Planck-Institut für molekulare Physiologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein Nef
A, C
166Human immunodeficiency virus type 1 group M subtype B (isolate ARV2/SF2)Mutation(s): 4 
Gene Names: nef
Find proteins for P03407 (Human immunodeficiency virus type 1 group M subtype B (isolate ARV2/SF2))
Go to UniProtKB:  P03407
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase HCK
B, D
61Homo sapiensMutation(s): 6 
Gene Names: HCK
EC: 2.7.10.2
Find proteins for P08631 (Homo sapiens)
Go to Gene View: HCK
Go to UniProtKB:  P08631
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, C
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.204 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 43.190α = 90.00
b = 90.880β = 90.00
c = 169.530γ = 90.00
Software Package:
Software NamePurpose
REFMACphasing
REFMACrefinement
XSCALEdata scaling
XDSdata reduction
ADSCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-04-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance