3TIW

Crystal structure of p97N in complex with the C-terminus of gp78


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.802 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.147 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Structural and Functional Basis of the p97/Valosin-containing Protein (VCP)-interacting Motif (VIM): MUTUALLY EXCLUSIVE BINDING OF COFACTORS TO THE N-TERMINAL DOMAIN OF p97.

Hanzelmann, P.Schindelin, H.

(2011) J.Biol.Chem. 286: 38679-38690

  • DOI: 10.1074/jbc.M111.274506

  • PubMed Abstract: 
  • The AAA (ATPase associated with various cellular activities) ATPase p97, also referred to as valosin-containing protein (VCP), mediates essential cellular processes, including ubiquitin-dependent protein degradation, and has been linked to several hu ...

    The AAA (ATPase associated with various cellular activities) ATPase p97, also referred to as valosin-containing protein (VCP), mediates essential cellular processes, including ubiquitin-dependent protein degradation, and has been linked to several human proteinopathies. p97 interacts with multiple cofactors via its N-terminal (p97N) domain, a subset of which contain the VCP-interacting motif (VIM). We have determined the crystal structure of the p97N domain in complex with the VIM of the ubiquitin E3 ligase gp78 at 1.8 Å resolution. The α-helical VIM peptide binds into a groove located in between the two subdomains of the p97N domain. Interaction studies of several VIM proteins reveal that these cofactors display dramatically different affinities, ranging from high affinity interactions characterized by dissociation constants of ∼20 nm for gp78 and ANKZF1 to only weak binding in our assays. The contribution of individual p97 residues to VIM binding was analyzed, revealing that identical substitutions do not affect all cofactors in the same way. Taken together, the biochemical and structural studies define the framework for recognition of VIM-containing cofactors by p97. Of particular interest to the regulation of p97 by its cofactors, our structure reveals that the bound α-helical peptides of VIM-containing cofactors overlap with the binding site for cofactors containing the ubiquitin regulatory X (UBX) domain present in the UBX protein family or the ubiquitin-like domain of NPL4 as further corroborated by biochemical data. These results extend the concept that competitive binding is a crucial determinant in p97-cofactor interactions.


    Organizational Affiliation

    Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Josef-Schneider-Strasse 2, 97080 Würzburg, Germany. petra.haenzelmann@virchow.uni-wuerzburg.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transitional endoplasmic reticulum ATPase
A, B
187Homo sapiensMutation(s): 0 
Gene Names: VCP
EC: 3.6.4.6
Find proteins for P55072 (Homo sapiens)
Go to Gene View: VCP
Go to UniProtKB:  P55072
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
E3 ubiquitin-protein ligase AMFR
C, D
19Homo sapiensMutation(s): 0 
Gene Names: AMFR (RNF45)
EC: 2.3.2.27
Find proteins for Q9UKV5 (Homo sapiens)
Go to Gene View: AMFR
Go to UniProtKB:  Q9UKV5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A, B, C, D
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.802 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.147 
  • Space Group: P 32
Unit Cell:
Length (Å)Angle (°)
a = 70.240α = 90.00
b = 70.240β = 90.00
c = 74.820γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
PHASERphasing
MxCuBEdata collection
PDB_EXTRACTdata extraction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-09-14
    Type: Initial release
  • Version 1.1: 2011-11-02
    Type: Database references
  • Version 1.2: 2011-11-16
    Type: Database references