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: 3.40 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.231 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 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: https://doi.org/10.1038/ncomms13047
  • Primary Citation of Related Structures:  
    5IFS, 5IFW

  • 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tether containing UBX domain for GLUT4188Homo sapiensMutation(s): 0 
Gene Names: ASPSCR1ASPLRCC17TUGUBXD9UBXN9
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BZE9 (Homo sapiens)
Explore Q9BZE9 
Go to UniProtKB:  Q9BZE9
PHAROS:  Q9BZE9
GTEx:  ENSG00000169696 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9BZE9
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Transitional endoplasmic reticulum ATPase807Homo sapiensMutation(s): 0 
Gene Names: VCP
EC: 3.6.4.6
UniProt & NIH Common Fund Data Resources
Find proteins for P55072 (Homo sapiens)
Explore P55072 
Go to UniProtKB:  P55072
PHAROS:  P55072
GTEx:  ENSG00000165280 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP55072
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.231 
  • Space Group: C 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 143.344α = 90
b = 208.361β = 90
c = 99.129γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XSCALEdata scaling
PHASERphasing
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-26
    Type: Initial release
  • Version 1.1: 2016-11-02
    Changes: Database references
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Refinement description