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 

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Ligand Structure Quality Assessment 


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:  
    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 ...

    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)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tether containing UBX domain for GLUT4A188Homo 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
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Transitional endoplasmic reticulum ATPaseB807Homo 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
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP (Subject of Investigation/LOI)
Query on ADP

Download Ideal Coordinates CCD File 
C [auth B], D [auth B]ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 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