5IFW

Quantitative interaction mapping reveals an extended ubiquitin regulatory domain in ASPL that disrupts functional p97 hexamers and induces cell death


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Quantitative interaction mapping reveals an extended UBX domain in ASPL that disrupts functional p97 hexamers.

Arumughan, A.Roske, Y.Barth, C.Forero, L.L.Bravo-Rodriguez, K.Redel, A.Kostova, S.McShane, E.Opitz, R.Faelber, K.Rau, K.Mielke, T.Daumke, O.Selbach, M.Sanchez-Garcia, E.Rocks, O.Panakova, D.Heinemann, U.Wanker, E.E.

(2016) Nat Commun 7: 13047-13047

  • DOI: 10.1038/ncomms13047
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Interaction mapping is a powerful strategy to elucidate the biological function of protein assemblies and their regulators. Here, we report the generation of a quantitative interaction network, directly linking 14 human proteins to the AAA+ ATPase p9 ...

    Interaction mapping is a powerful strategy to elucidate the biological function of protein assemblies and their regulators. Here, we report the generation of a quantitative interaction network, directly linking 14 human proteins to the AAA+ ATPase p97, an essential hexameric protein with multiple cellular functions. We show that the high-affinity interacting protein ASPL efficiently promotes p97 hexamer disassembly, resulting in the formation of stable p97:ASPL heterotetramers. High-resolution structural and biochemical studies indicate that an extended UBX domain (eUBX) in ASPL is critical for p97 hexamer disassembly and facilitates the assembly of p97:ASPL heterotetramers. This spontaneous process is accompanied by a reorientation of the D2 ATPase domain in p97 and a loss of its activity. Finally, we demonstrate that overproduction of ASPL disrupts p97 hexamer function in ERAD and that engineered eUBX polypeptides can induce cell death, providing a rationale for developing anti-cancer polypeptide inhibitors that may target p97 activity.


    Organizational Affiliation

    Max Delbrück Center for Molecular Medicine, Robert-Rössle-Straße 10, 13125 Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tether containing UBX domain for GLUT4
A
188Homo sapiensMutation(s): 0 
Gene Names: ASPSCR1 (ASPL, RCC17, TUG, UBXD9, UBXN9)
Find proteins for Q9BZE9 (Homo sapiens)
Go to Gene View: ASPSCR1
Go to UniProtKB:  Q9BZE9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Transitional endoplasmic reticulum ATPase
B
807Homo 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
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
B
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.229 
  • Space Group: C 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 143.344α = 90.00
b = 208.361β = 90.00
c = 99.129γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
XSCALEdata scaling
PHASERphasing
XDSdata reduction
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-10-26
    Type: Initial release
  • Version 1.1: 2016-11-02
    Type: Database references